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TA8879N
1CHIP NTSC COLOR TV
TOSHIBA TA8879N
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA8879N
1 CHIP NTSC COLOR TV
The TA8879N combines all the functions required for an
NTSC color TV system in a 56-lead, dual-in-line shrink-
type (1.78 mil) plastic package.
This device includes PlF/SIF circuits, video/chroma/
deflection circuits, chroma band pass filters, red and _--------------:.,),,],'-),-;
green OSD interfaces, and 1ch Audio Video switches. _------"" f _ _.--.-.,-:;,; gil
FEATURES W _
PIF Stage
. 3-stage variable-gain PIF amplification stage
SDIP56-P-600-1.78
Weight : 5.55g (Typ.)
o High-speed response AGC with dual time constants
(peak AGC)
Single end AFT output with defeat function
RF delay AGC output (reverce AGC)
Sync. negative detected video output polarity
Internal black/white noise inverter
Minimum externally mounted parts and adjusting spots
SIF Stage
3-stage limiter amplification stage
Quadrature FM detector circuit with sound mute function
1ch external audio input
High-performance electronic attenuater circuit
Preamplifier circuit
Video Stage
It 2nd order-differentiaI-type picture sharpness circuit (DC control)
It Contrast control with unicolor function
0 Brightness control with pedestal clampling circuit (variable DC restoration ratio)
External video input
1 2001-06-25
TOSHIBA
Chroma Stage
Internal 1/2 fsc Trap
Internal band pass filter
ACC circuit
Color control circuit
Unicolor control circuit
Color differential output
Tint control circuit
Adjustment-free APC Circuit
Defrection Stage
High-performance sync separation circuit
Adjustment free horizontal oscillation circuit
Stable vertical synchronization
Sawtooth-type AFC (internal sawtooth wave generator)
Horizontal predrive output
X-ray protection circuit
Vertical NFB amplification circuit
OSD interface Stage
Fast blanking SW
TA8879N
BLOCK DIAGRAM
Limiter
Matrix
DE mOV
Y IR
B-Y OUT
TA8879N — 3
TOSHIBA
TA8879N
TOSHIBA TA8879N
TERMINAL FUNCTION
KILL“ PIN NAME FUNCTION INTERFACE CIRCUIT
Emitter follower output for a
volume controlled audio signal (TV/
External) output stage
(Ref.)
snngDcET MODE INPUT ATT
1 Audio Output
Pin 33 open TV Pin 55 6dB
Pin 33
connected to
GND through
EXT Pin 6 OdB
An open collector output for RF '-
2 RF AGC O t t . . .
u pu The gain IS determined by an
external load resistor.
7r :3: o AGC
3 RF AGC Delay The delay point of RF AGC is set by ®__.1°';9A_.
Adjust an applied external voltage.
”j RF AGC out
A 4.5MHz tuned tank circuit is 7: 4.5pF j
connected. G) f" "
4 SIF Tank The detector muting function is on f,',
when this terminal is connected to 7: F
4 2001-06-25
TOSHIBA
TA8879N
PIN PIN NAME
FUNCTION
INTERFACE CIRCUIT
AGC Filter
Pin 5 and pin7 are AGC time
constant terminals
A dual time constant system is
adopted in order to achieve a high
speed response.
F—WV—1
3kQ 10kQ
3 50007L 16k!) _
External Audio
External audio signal input terminal
(Capacitor coupled input)
(Ref.)
External audio signal is selected
when the terminal pin 33 is
connected to GND through 47kQ
resistor.
8 PIF/SIF GND
GND for PlF/SIF stage
Decoupling capacitors should be
connected between the terminal pin
48 and the terminal pin 8.
PIF signal input terminal
Input impedance , 2.5k0 typ.
4.5k0 ‘
Adjustment
10 PIF Input
Chroma filter
11 and VCO
The center frequency of the internal
chroma filter and 3.58MH2 VCO are
adjusted simultaneously.
TOSHIBA
TA8879N
Kl"? PIN NAME FUNCTION INTERFACE CIRCUIT
i I Vcc
j.''') 2000
12 APC Filter APC filter circuit is connected.
13 3.58 X'tal 3.58MHz X'tal is connected.
VCC for video / chroma Ideflection
stage (Vcc=9V typ., decoupling
14 V/C/D VCC capacitors should be connected -
between the terminal pin 14 and
pin 41)
15 R Y Output x
- . . 15 son
17 G-Y Output fglrzznjllfference signal output 17 C.".)
18 B-Y Output 18 x (iii,
-Y signal output terminal lt N P
Vertical blanking is generatecd
16 -Y Output internally, where as holizontal (i?,
blanking should be added Cui" {1 J
externally. 7r --
'ij l EVBLK
TOSHIBA
TA8879N
No. PIN NAME FUNCTION INTERFACE CIRCUIT
OSD (On Screen Display) signal cl
input terminal 1: if,
19 R OSD Input Threshoid voltage : 2.3V (typ.) il/IO- 1m
20 G OSD Input Mexlmput level : 5.5V 1:
Min input level : -0.3V m >
Max input Current in VCC off 2
: 7mA l
Input terminal for fly back pulse to
horizontal AFC circuit (the HA/CC
integrator circuit for a sawtooth
wave is provided internally.) 1r 2-
Sync signal output terminal 2000 5m
21 FBP Input Pin 21 terminal voltage is clampled (2CI)--c;c''-4
to 4.2V during sync pulse period. fl,
---_ 4.2V
L-"-L-1- - 2.1V I l
- 0.7V m
C} HA/CC
The input terminal of the X-ray r. g
protector. lt L fi
Pin 23 horizontal drive terminal P 3
22 X-ray Protector turns to "LOW" when the input C22D-
voltage of this terminal exceeds the
specified threshold voltage. (1.3V 7
s, HA/CC
Horizontal drive output terminal lr
23 Horizontal (emitter follower) 200
Output Amplitude : 5.0vp-p (typ.) Cip-
Duty : 43% (typ.) 1r
TOSHIBA TA8879N
I'). PIN NAME FUNCTION INTERFACE CIRCUIT
- - - H.Vcc
24 H.AFC AFC filter is connected. VCO
25 32fH VCO 32fH oscillation circuit
a 2kf2 -
Cis) F C)
VCC for Horizontal Deflection
26 HA/CC H.Vcc=9V typ. -
An external zener diode is required.
Vertical output terminal (emitter VCC
follower) 7:
Test Mode n
. The ramp wave at pin 31 is (ij) 1.00
27 Vertical Output disappeared and the DC voltage
of pin 31 becomes around 6V 7: g .
when 9V is applied to the F
terminal pm 27. M J
OSD (On Screen Display) signal VCC
input terminal
Th h I I : 2. V .
28 B OSD Input res ol.d vo tage 3 (typ.)
29 Y In ut Max input level : 5.5V
S p Min input level : -0.3V 3
Max input current in VCC off “1
8 2001-06-25
TOSHIBA
TA8879N
PIN PIN NAME
FUNCTION
INTERFACE CIRCUIT
Vertical NFB
Input terminal for vertical NFB Amp.
(AC, DC feedback)
Vertical Ramp
The vertical ramp wave is generated
at this terminal.
During retrace period, external
capacitor is charged by an internal
current source, then, during trace
period, an external capacitor is
discharged by an external resistor.
The vertical ramp voltage is subject
to the horizontal VCC (6V typ.
when horizontal VCC is 9V.)
10H pulse
Killer Filter
Killer filter capacitor is connected.
Chroma Input
TV/ EXT Switch
S-VHS Switch
Chroma signal input terminal
TV/External selection terminal
Switching circuit for external
Chroma signal input
V33 [V]
TV MODE
EXT MODE
S-VHS MODE
S-VHS MODE : A compensation
circuit for a unicolor
control is disabled.
TOSHIBA
TA8879N
No PIN NAME FUNCTION INTERFACE CIRCUIT
Switching circuit for external
chroma signal input
34 Video OUT (2) Composite video signal with
contrast amplitude is delivered from
this terminal.
OSD signal brightness control
, 5000 i
by the external resistors R1 and R2.
35 OSD Bright terminal OSD brightness level is set
by this terminal voltage.
Picture "
Sharpness J
Control 2nd 2nd ordered-differential video signal 6.4 F
36 Order- input terminal @ AP
differential Picture sharpness control terminal 2
Video Signal ”’ -
Input l r: o
I tt inalofdel d id , fit, 100Q
37 Video Input hpu ermma o e aye VI eo (ii) _ A
signal 15 ' t
I El 0
- - Vcc
. . . 1000
. TV signal brightness control terminal Ciii ()
Brightness . . . .
38 DC restoration ratio IS determined
Control ,b",
TOSHIBA
TA8879N
PIN NAME
FUNCTION
INTERFACE CIRCUIT
Vertical Sepa.
Filter
Vertical sync. separation filter is
connected.
- HA/CC
Video Output
Contrast controlled TV signal (from
pin 45) and external video signal
(from pin 42) are switched by
terminal 33 voltage and delivered
from this terminal.
MODE CON-
SELECT MODE INPUT RAST
Pin 33 open TV Pin 45 3.5dB
Pin 33
Connected to
GND through
EXT Pin42 9.5dB
V/C/D GND
GND for Video/Chroma/Delection
stage Decoupling capacitors should
be connected between the terminal
pin 14 and pin 41.
External Video
External video signal input terminal
(1Vp-p typ.)
(TV/External Selection : with pin 33
chroma signal input)
TOSHIBA
TA8879N
working.
No. PIN NAME FUNCTION INTERFACE CIRCUIT
Uni-color control terminal
(Gain control for video and color)
Test Mode (1)
Burst signal is appeared at the a Vcc
terminal pin 17 (G-Y output) when ‘3‘
the terminal pin 43 voltage is set to
43 Contrast 2.0V. Cai", 40m
Control Test Mode (2)
Burst and chroma signal is appeared
at the at the terminal pin 17 (G-Y
output) when the terminal pin 43
voltage is set to 2.0V and pin 36 is
set to 0.2V or connected GND
thorough 3k0.
Color saturation control terminal
44 Color Control This pin 44 is low at "killer"
pin 15, pin 17 and pin 18 when
the terminal pin 46 voltage is set
to lower than 1.3V.
1: lk y
TV video signal input terminal '""
(2Up-p typ.)
4 TV I . . .
5 nput (TV/External Selection : with pin 33 5oon
chroma signal input) ar
Hue control terminal
Test Mode
3.58MHz X'tal drive wave form
46 TINT Control can be observed at the terminal
TOSHIBA
TA8879N
To defeat AFT, pin 45 is connected
to GND through 10kQ resistor.
No PIN NAME FUNCTION INTERFACE CIRCUIT
An output terminal for detected TV
TV Video video signal.
47 Output Video muting circuit operates when
(VIF Output) the terminal pin 5 is connected to @
GND. cc
VCC for PIF/SIF stage
(Vcc = 9V typ.)
48 P/S VCC Decoupling capacitors should be -
connected between the terminal pin
8 and pin 48.
I ' Vcc
1: 1r 2;; g?
Cis) M
49 PIF Tank lermlnals for a video DET tank 7:
50 circuit I f?
__. AFT
A single ended tuned tank is
51 AFT Tank connected.
TOSHIBA
TA8879N
PIN NAME
FUNCTION
INTERFACE CIRCUIT
AFT Output
AFT output terminal
AFT center voltage is determined by
Vo, slope sensitivity is determined
by (R1+ '
SIF Input
SIF signal input terminal
De-Emphance
A SIF detection de-emphasis
capacitor is connected.
The output signal should be led to
the terminal pin 55 through a
coupling capacitor.
In sound MPX Application, the
signal from terminal pin 54 can be
applied to the sound MPX decoder.
Audio TV Input
TV audio signal input terminal
(Audio signal from pin 54 is to be
applied to pin 55 through a
coupling capacitor.)
TOSHIBA TA8879N
5'3 PIN NAME FUNCTION INTERFACE CIRCUIT
. cl Vcc
Volume control terminal 1: tiir
Controlled by 0 to 5V DC, suitable -
56 Audio Volume to g-computer contro-I interface. 1kQ t
Control A linear taper potentiometer can be
used. The attenuation range is z:
OSD LOGIC TABLE
INPUT OUTPUT
MODE YS R G B R-Y B-Y G-Y
(PIN 29) (PIN 19) (PIN 20) (PIN 28) (PIN 15) (PIN 17) (PIN 18)
TV L L L L TV TV TV
Black H L L L L L L
Red (*) H L L H L L
Blue (*) L L H L H L
Green (*) L H L L L H
Yellow (*) H H L H L H
Magenta (*) H L H H H L
Cyan (*) L H H L H H
White (*) H H H H H H
(*) .' Don't CARE
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Power Supply Voltage VCC 13.0 V
Input Terminal Voltage Vin GND-0.3V-sNcc+0.3V V
Input Signal Amplitude ein 4.0 Vp-p
Power Dissipation PD (Note) 1.92 W
Operating Temperature Topr -20--65 °C
Storage Temperature Tstg - 55--150 °C
(Note) When using the device at above Ta =25°C, decrease the power dissipation by 15.3mW
for each increase of 1°C.
RECOMMENDED POWER SUPPLY VOLTAGE
PIN No. CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT NOTE
14, 48 9V Po er S I Volta e V -
IN uppy g CC 8.5 9.0 9.5 v
26 9V Power Supply Voltage HA/CC -
15 2001-06-25
TOSHIBA TA8879N
ELECTRICAL CHARACTERISTICS
DC CHARACTERISTICS (Unless otherwise specified, VCC=9V, H.VCC=9V, Ta = 25°C)
DC voltage characteristics
I',". PIN NAME 121- MIN. TYP. MAX. UNIT NOTE
1 Audio Output V1 4.0 4.7 5.2 SW4 : ON
2 RF AGC Output V2 - - 0.5
3 RF AGC Delay V3 5.8 6.2 6.7
4 SIF Tank V4 2.5 3.0 3.6
5 1st AGC V5 - 4 - External Supply Voltage
6 External Audio Input V6 3.3 4.0 5.1
7 2nd AGC V7 - 4 - External Supply Voltage
8 PlF/SIF GND V8 - 0 -
9 PIF Input (1) V9 3.5 3.9 4.5
10 PIF Input (2) V10 3.5 3.9 4.5
11 fc Adjustment V11 3.5 4.5 5.5
12 APC Filter V12 5.9 6.4 6.9
13 3.58 X'tal V13 3.8 4.3 4.7
14 V/C/DVCC V14 - 9.0 -
15 R-Y output V15 4.7 5.4 5.9
16 -Y Output V16 4.5 5.0 5.5 Bright Terminal 5.2V
17 G-Y Output V17 4.7 5.4 5.9
18 B-Y output V18 4.7 5.4 5.9
19 R OSD Input V19 - - - V
20 G OSD Input v20 - - -
21 FBP Input V21 0.5 0.9 1.2
22 X-ray v22 - - -
23 Horizontal Output V23 4.9 5.2 5.6 Ground via wk!)
24 Horizontal AFC V24 6.7 7.2 7.8
25 32fH VCO V25 4.80 5.2 5.75
26 HA/CC V26 - 9.0 -
27 Vertical Output V27 2.9 3.5 4.1
28 B OSD Input V28 - - -
29 YS OSD Input V29 - - -
30 Vertical NFB V30 - - -
31 Vertical Ramp V31 5.9 6.1 6.3
32 Killer Filter V32 5.3 5.7 6.2
33 Chroma Input V33 3.8 4.35 4.8
34 Video Out (2) V34 1.7 2.0 2.3 Ground via 6.8kQ
35 OSD Bright Control V35 - - -
36 Sharpness Control V36 5.2 5.7 6.2
37 Video IN V37 4.6 5.1 5.6 Bright Terminal 5.2V
16 2001-06-25
TOSHIBA TA8879N
PIN PIN NAME SYM- MIN. TYP. MAX. UNIT NOTE
No. BOL
38 Brightness Control V38 - - -
39 Vertical Sync Sepa. Filter V39 - - -
40 Video OUT (1) V40 1.6 2.4 3.2
41 V/C/D GND V41 - 0 -
42 External Video Input V42 2.0 2.5 3.0 External Input Mode
43 Contrast Control V43 4.9 5.5 6.0
44 Color Control V44 3.9 4.4 4.8
45 TV Input V45 2.3 2.8 3.3 TV Mode
46 Tint Control V46 3.9 4.4 4.8
47 TV Detection Output V47 4.2 4.6 4.9 V
48 PlF/SIF VCC V48 - 9.0 -
49 PIF Tank (1) V49 6.2 6.8 7.1
50 PIF Tank (2) V50 6.2 6.8 7.1
51 AFT Tank V51 2.6 3.0 3.4
52 AFT Output V52 2.3 3.8 5.3
53 SIF Input V53 2.6 3.0 3.4
54 De-emphasis V54 2.7 3.5 4.2 SW4 : ON
55 Audio TV Input V55 3.3 4.0 5.1
56 Audio Control V56 - - 5
Power consumption, power dissipation
CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT NOTE
PIF I1 18 26 34
SIF l2 7 11 15
Power Supply Video I3 15 22 29 " . " .
Current Chroma I4 14 22 29 mA Video includes OSD part.
. VCC I5 1 2 3
Deflection HA/CC l6 7 10 13
VCC ICC 55 83 110
Total Current HA/CC 'CCH 7 10 13 mA
Total Power Dissipation PD 558 837 1107 mW
17 2001-06-25
TOSHIBA TA8879N
AC CHARACTERISTICS (Unless otherwise specified, VCC: H.Vcc=9V, Ta =25°C)
PIF stage
TEST TEST
CHARACTERISTIC SYMBOL ELIE)" CONDITION MIN. TYP. MAX. UNIT
Input Sensitivity VIN 2 (Note 1) - 38 46 dB/A/
IF AGC Range GR 2 (Note 2) 60 67 - dB
Video Band Width fVBW 2 (Note 3) 4.5 - - MHz
Differential Gain DG - - 5 %
Differential Phase DP 2 (Note 4) - - 10 C)
Video Output Amplitude Vp-p 2 (Note 5) 1.7 1.9 2.3 Vp-p
No-signal Level V47(0) 2 (Note 6) 4.3 4.6 4.9 V
Sync Tip Level VSYNC 2 (Note 7) 2.1 2.3 2.5 V
Black No1se Inverter Level VBTH 2 (Note 8) 1.3 1.7 2.1 V
Black Noise Clamp Level VBCL 3.2 3.6 4.0
Carrier S-uppreSSIon- Ratio . lo 2 (Note 9) 40 - - dB
Harmonic Suppression Ratio IH 40 - -
Input Impedance RN 2 (Note 10) 1.75 2.5 3.25 kg
CIN 2 4 8 pF
AFT Center Voltage No Signal AV52 2 (Note 11) 2.3 3.8 5.3 V
Offset AV52 - 1.5 0 1.5
AFT Sensitivity f/V 2 (Note 12) - - 27 kHz/V
AFT Voltage Swing A 2 (Note 13) 6 8.7 - V
920kHz Beat 1920 2 (Note 14) 32 - - dB
SIF stage
TEST TEST
CHARACTERISTIC SYMBOL fl); CONDITION MIN. TYP. MAX. UNIT
FM Detection Output VOD 2 (Note 15) 110 150 - mVrms
Limiting Sensitivity VIN 2 (Note 16) - 51 58 dB/A/
AM Rejection Ratio AMR 2 (Note 17) 30 - - dB
Band Width (-3dB) f1-f2 2 (Note 18) 150 210 - kHz
TV GE‘ATT - 6.0 -
Preamp Gain (ATT Max.) 2 (Note 19) dB
EXT GSXTI'T - o -
ATT Max. Attenuation XMAX 2 (Note 20) 70 - - dB
TV vlh,x 1.5 2.5 -
ATT Max. Input Voltage EXT 2 (Note 21) V
EXT VINMX 3.1 5.0 -
18 2001-06-25
TOSHIBA TA8879N
Video stage (Video amp)
TEST TEST
CHARACTERISTIC SYMBOL CIR- MIN. TYP. MAX. UNIT
CUIT CONDITION
Video Output Drive Current |#40 3 (Note 22) 2.0 3.2 4.7 mA
v31 - 1.7 2.4
Min. Linear Video Input (Pin42, 45)
vdi1 - 2.0 2.3
3 (Note 23) V
VEYZ 5.1 5.4 -
Max. Linear Video Input (Pin 42, 45)
Vdi2 3.7 3.9 -
V . 3.0 3.7 -
. . diA
V10eo Input Dynamic Range 3 (Note 24) V
(Pin42, 45) EXT
VdiA 1.5 1.9 -
Mi . O t t Pi 42, 45 V - 0.8 1.0
m u pu ( l.” ) dol 3 (Note 25) V
Max. Output (Pin 42, 45) Vdo2 7.3 7.7 -
601/ 1.35 1.5 1.65
AC Gain (Pin 42, 45-apin 40) EXT 3 (Note 26) Times
GV1 2.55 3.0 3.45
Frequency Response
(Pin42, 45-ypin 40) AGf1 3 (Note 27) 1 0.25 0 dB
Contrast Control Gain Variable AGct 3 (Note 28) 11 12 13 dB
Contrast Control Voltage Range Vct 3 (Note 29) 0.5 1.2 1.9 Vp-p
Contrast Control Center Voltage Vcto 3 (Note 30) 5.2 5.5 5.8 V
TV-YEXT Crosstalk T-9E 3 (Note 31) -49 -60 - dB
TV-HMT Mode Switching Level VT-OE 3 (Note 32) 2.95 3.25 3.55 v
EXT-ml Mode Switching Level VE-ir 3 (Note 33) 2.95 3.25 3.55 V
602/ 0.89 1.00 1.12
AC Gain (Pin 42, 45-apin 34) EXT 3 (Note 34) Times
G v2 1.78 2.00 2.24
19 2001-06-25
TOSHIBA TA8879N
(Y signal process)
CHARACTERISTIC SYMBOL fl')-, CONDITION MIN. TYP. MAX. UNIT
Brightness Control Adjust Voltage VBR 3 (Note 35) 4.8 5.2 5.6 V
Brightness Control Sensitivity GBR 3 (Note 36) -2.4 -2.85 -3.6 Times
Min. Linear Video Input (Pin 37) Vdi4 6.2 6.5 -
Max. Linear Video Input (Pin 37) Vdi3 3 (Note 37) - 4.6 4.8 V
Video Input Dynamic Range (Pin 37) VdiB 3 (Note 38) 1.5 1.8 - V
Min. Output (Pin 37) Vdo3 - 0.8 1.1
Max. Output (Pin 37) vdo4 3 (Note 39) 6.7 7.0 9.0 V
Dynamic Range of 2nd-order Vdip 3 (Note 40) 0.4 0.5 0.65 V
Differential Video Input
AC Gain (Pin 37-oPin 16) Gv2 3 (Note 41) 2.4 2.8 3.1 Times
Frequency Characteristics
(Pin 37-ypin 16) Gf2 3 (Note 42) -3 -1 -0.4 dB
Gain Variation (Min. Sharpness) AG mm 3 (Note 43) -2.2 -4.5 -6.3 dB
Gain of Picture Sharpness Control Gps 3 (Note 44) 17.5 20 24 dB
Picture Sharpness Control
Characteristics AGps 3 (Note 45) - 3.0 -0.7 0 dB
Picture Sharpness Control Range AVps 3 (Note 46) 1.53 2.7 3.24 Vp-p
V-BLK Pulse Output Level VV 3 (Note 47) 8.0 8.9 9.0 V
Y Output Drive Current |#16 3 (Note 48) 1.0 2.0 3.0 mA
20 2001-06-25
TOSHIBA TA8879N
OSD interface stage
TEST TEST
CHARACTERISTIC SYMBOL CIR- MIN. TYP. MAX. UNIT
CUIT CONDITION
VOUTG 4.4 4.7 5.0
OSD Output DC Voltage L 3 (Note 49) V
viurry 4.1 4.3 4.5
OSD Output Hi Voltage ngTG 3 (Note 50) 6.5 6.7 6.9 v
R OSD Threshold Voltage V32]? 3 (Note 51) 2.10 2.30 2.50 V
G OSD Threshold Voltage vges 3 (Note 52) 2.10 2.30 2.50 v
B OSD Threshold Voltage vgh', 3 (Note 53) 2.10 2.30 2.50 V
YS Threshold Voltage ug'?, 3 (Note 54) 2.10 2.30 2.50 v
Output High Level Rise Time TE - 25 100
Output High Level Propagation H
. . . t PR - 15 100
Delay Time (Rising Edge) 3 (Note 55) ns
Output High Level Fall Time /) - 30 100
Output High Level Propagation H
Delay Time (Falling Edge) t PF - 20 100
Output Low Level Rise Time Th - 25 100
Output Low Level Propagation Delay L
. . . t PR - 10 100
Time (Rising Edge) 3 (Note 56) ns
Output Low Level Fall Time rF - 20 100
Output Low Level Propagation Delay tL 10 100
Time (Falling Edge) PF
21 2001-06-25
TOSHIBA TA8879N
Chroma stage
TEST TEST
CHARACTERISTIC SYMBOL CIR- MIN. TYP. MAX. UNIT
CUIT CONDITION
a 0.04 0.09 - Vp-p
TV A - 1.0 1.30 Times
F1 0.13 0.16 0.20 V -
. . 4 Note 57 p p
ACC Characteristics a ( ) 0.03 0.08 - Vp-p
EXT A - 1.0 1.30 Times
F1 0.13 0.16 0.20 Vp-p
I I V I V44 . 4. 7 4.7
Co or Contro o tage 4 (Note 58) 3 93 3 5 V
Color Control Range AV44 0.64 1.26 1.88
Uni-color Control Gain Variation eu 10.4 11.4 13.6 dB
Uni-color Control Adjust. Voltage V43 4 (Note 59) 4.94 5.49 5.97
Uni-color Control Adjust. Voltage AV43 0.64 1.26 1.88 V
Ch I T . I TV V3; 3.8 4.35 4.8
V {:ma nput ermma 4 (Note 60) V
o age EXT v5);T 1.90 2.20 2.50
Tint Control Range (part) 461 4 (Note 61) 45 55 65 ©
A62 45 35 25
T1nt Control Voltage V46 4 (Note 62) 3.93 4.37 4.75 V
Tint Control Voltage Range AV46 0.64 1.26 1.88
Frequency Control Sensitivity , 4 (Note 63) 0.9 1.5 2.1 Hz/mV
fph +250 +500 -
APC Pull-in, Hold Range fy 4 (Note 64) -250 -500 -3000 Hz
fHh +300 +500 -
fHI - 300 - 500 - 3000
TV elv 1.4 2.8 4.5
Killer Operation Input Level EXT 4 (Note 65) mVp-p
EXT e k 1.0 2.0 3.2
Demodulator Output DC Voltage V15, V16, V17 4 (Note 66) 4.7 5.4 5.9 V
eR 0.31 0.46 0.63
Color Difference Output eG 4 (Note 67) 0.11 0.16 0.22 Vo-p
e3 0.37 0.54 0.73
ER 3.73 4.40 5.60
Max. Color Difference Output EG 4 (Note 68) 1.20 1.40 1.80 Vp-p
EB 3.73 4.40 5.60
22 2001-06-25
TOSHIBA TA8879N
TEST TEST
CHARACTERISTIC SYMBOL CIR- MIN. TYP. MAX. UNIT
CUIT CONDITION
. . R / B 0.71 0.84 0.97
Relative Amplitude G/B 4 (Note 69) 0.21 0.34 0.47 -
. R-B 97 104 113 0
Relative Phase G-B 4 (Note 70) 225 240 250
ECR - - 10
Demodulator Output Residual Carrier ECG 4 (Note 71) - - 4 mVp-p
ECB - - 10
. EHR - - 100
.D.emodu.lator Output Residual EHG 4 (Note 72) - - 40 mVp-p
Harmonics
EH3 - - 120
s VHS SW Threshold Voltage VSSW 4 (Note 73) 1.85 2.15 2.45 V
Deflection circuit
TEST TEST
CHARACTERISTIC SYMBOL CIR- MIN. TYP. MAX. UNIT
CUIT CONDITION
Sync. Separation Input Current
Sensitivity lIN45 5 (Note 74) 15 25 40 pA
H.AFC Phase Detection Current IDET 5 (Note 75) 230 330 460
Phase Detection Masking Period Tc024 5 (Note 76) - ~21; - -
32fH VCO Oscillation Start Voltage VON 5 (Note 77) - - 4.0 V
Horizontal Output Start Voltage V0N23 5 (Note 78) 4.0 4.5 5.0 V
Horizontal Free-running Frequency fo 5 (Note 79) 15.584 15.734 15.884 kHz
. fmax 16.400 16.600 16.800
Horizontal Frequency Control Ranage fmin 5 (Note 80) 14.600 15.000 15.300 kHz
Horizontal Frequency Control
Sensitivity /3H 5 (Note 81) 2.0 2.3 2.6 kHz/V
Horizontal Output Duty Ratio T023 5 (Note 82) 41 43 45 %
. VH23 4.7 5.0 5.5
Horizontal Output Voltage 5 (Note 83) V
VL23 - 0 0.1
X-ray Protection Threshold Voltage 1h22 5 (Note 84) 1.1 1.3 1.5 V
X-ray Protection Hold Voltage VH26 5 (Note 85) - - 2.5 V
. . Tr1 - 10H -
Vertical Output Pulse Width Tr2 5 (Note 86) - 10H - -
V-Ramp Max. Output Voltage VH31 5 (Note 87) 5.7 6.1 6.3 V
V-Ramp Max. Output Current |031 5 (Note 88) - 23 - mA
Vertical Amplifier Gain GV 5 (Note 89) 18 20 22 dB
Vertical Output Max. Voltage VH27 5 (Note 90) 2.9 3.5 4.1 V
Vertical Output Min. Voltage VL27 5 (Note 91) - - 0.3 V
Vertical Output Max. Current IO27 5 (Note 92) 20 35 - mA
. . . fpv1 - 224.5H -
Pull-in Range Of Vertical Oscillator fpv2 5 (Note 93) - 296.5H -
23 2001-06-25
TOSHIBA
TEST CONDITION
TA8879N
PIF stage
NOTE MEASUREMENT CONDITION (Vcc=9.0V, Ta =25°C)
ITEM SW & VR MODE
o SW7 SW51 SW53 VR3 SW33B MEASUREMENT METHOD
(1)TP9A
: Input fo=58.75MHz,
84dBpV, 15.75kHz sine
wave, 30% AM
Input (2)TP7 : Open
1 Sensitivity OFF OFF B Max. A (3) Measure the input signal
2 IF AGC Range
Video Band
level to make the detection
output signal (TV detection
signal : TP47B) level--
0.6vp-p.
(1)TP9A
: Input to = 58.75MHz,
84dBpV, 15.75kHz sine
wave, 30% AM
(2) Measure the input level VI
to make the detection
output signal (TV detection
signal : TP47B)=0.6Up-p
constantly in case of TP7
voltage=9V. Measure the
input level 02 by the same
way above in case of TP7
voltage = 3V.
(3) Calculate the GR
=208og (v1/v2)
(1) Set SG1
: fo = 58.75MH2, 84dBpV,
SG2 : fm=variable
(2) TP9A
: Input SG1+SG2
through the 2 signal
mixer pad.
(3) Adjust the TP7 external AGC
voltage and $62 output
level to make the AC
amplitude=0.6Up-p and DC
level = 5V.
(4) Sweep fm, measure the TV
detection signal (TP47A).
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
MEASUREMENT METHOD
Differential
Differential
Video Output
Amplitude
No-signal
Sync Tip Level
Black Noise
Inverter Level
Black Noise
Clamp Level
(1)TP9A
: Input the DG/DP Meter
signal of 87.5%
modulated with IF 2
signal SG
(2) Measure the TV detection
signal (TP47A) with
synchronous scope through
DG/DP Meter.
(1)TP9A
: Input f0 = 58.75MHz,
84dB/A/, 15.75kHz sine
wave, 78% AM
(2) Measure the TV detection
output amplitude (TP47A).
(1)TP7
: 4V (external AGC
voltage)
(2) Measure the TV detection
output DC level (TP47A)
with digital voltmeter.
(1) TP9A
: Input f0 = 58.75MHz,
84dBpV, cw
(2) Measure the TV detection
output DC level (TP47A)
with digital voltmeter.
(1) TP9A
: Input f0 = 58.75MH2,
84dBp1/, 15.75kHz sine
wave, 78% AM
(2) Monitor the TV detection
signal (TP47A).
Adjust the TP7 voltage to
make the waveform as the
fig. below.
(3) Measure the l/BTH, VBCL
15.75kHz waveform
Pin 47
Output
TOSHIBA
TA8879N
NOTE MEASUREMENT CONDITION (VCC=9.0V, Ta =25°C)
ITEM SW & VR MODE
No. SW7 SW51 SW53 VR3 SW33B MEASUREMENT METHOD
(1)TP9A
: Input fo = 58.75MH2,
84dBpV, 15.75kHz sine
wave, 78% AM
(2) Adjust the TP7 voltage
Carrier (external AGC) to make the
Suppression TV detection signal (TP47A)
Ratio Level = 2Up-p.
9 OFF OFF B Max. A (3) Change TP9A to CW.
Harmonic Measure the leakage voltage
Suppression at TP47A. Calculate the ratio
Ratio lo = leakage / 2Up-p.
(4) Measure the 117.5MHz
leakage voltage at TP47A.
Calculate the ratio
IH =117.5MHz leakage
/2vp_p.
Impedance
(1) :3? (1)TP7 : 4V (external AGC)
10 . (2) Measure the impedance
Resistance between pin9 10 and GND
(2) Single ' .
Capacitance
(1)TP9A
: No signal input
(1) (AC GND)
AFT Center OFF (2)TP7 : 4V (external AGC)
Voltage (3) Measure the V52 =TP52
11 (1) No signal voltage with digital
(2) AFT Mute voltmeter at AFT mute off.
Offset (SW51 : OFF).
Voltage (2) (4) Measure the TP52 voltage at
ON AFT mute ON (SW51 : ON).
Calculate AV52 =difference
from V52
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
MEASUREMENT METHOD
AFT Sensitivity
AFT Voltage
920kHz Beat
(1)TP9A
: Input to = 58.75MHz,
84d3,av, cw
(2) Sweep the input signal
frequency. Measure the
AV=Voltage changing of
(3) Calculate Af/AV.
fo frequency
(1)Same as (1) for note 12.
(2)Same as (2) for note 12.
(3) Measure the "A" in the fig.
below.
frequency
(1) Set SGI
: IF 2 signal
P= 58.75MHz, 84dBpV
S = 54.25MHz, 74dB/A/
Set SG2
: C=55.17MH2, 74dBpN
(2) TP9A
: Input SG1+SG2
through 2-signal mixer
(3) Adjust the external AGC
voltage to make the TV
detection signal (TP47A) sync
tip |eve|=2.4V.
Measure the level difference
between 3.58MHz and
920kHz.
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
MEASUREMENT METHOD
FM Detection
Output
Limiting
Sensitivity
AM Rejection
Band Width
(- 3dB)
(1)TP53
: Input fo=4.5MHz,
100dBpV, 400Hz,
7.5kHz/ DEV.FM
(2) Measure the amplitude of
TP54 output.
(1)Same as (1) for note 15.
(2) Decrease the input level and
measure the -3di? limiting
point.
(1)TP53 : Input f0=4.5MHz
FM : 400Hz, 7.5kHz/
DEV., 100dBpV
Measure the
output level
(TP54) =VFM
(2)TP53 input fo=4.5MHz,
AM : 400Hz, 30%,
100dBpV
Measure the
output level
(TP54) =VAM
(3) Calculate the
AMR =20€og (VFM IVAM)
(1)Same as (1) for note 15.
(2) Measure the -3dB Band
Width (fZ-f1)
detection
output
f2 f0 f1 TP53
input CW
Frequency
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
MEASUREMENT METHOD
Pre amp Gain
(ATT max.)
ATT Max.
Attenuation
ATT Max.
Input Voltage
(1)TV mode
: Pin 55 : Input 1kHz,
250mVrms,
through 4.7PF
Ext mode
: TP6 : Input 1kHz,
500mVrms
(2) Measure the output level for
each mode
(3) Calculate the GV ATT
=20€og (vout/Uin) for each
(1)TP6 : Input 1kHz, 500mvrms
(2) Measure the VRmax output
amplitude (UMAx) and
VRmin output amplitude
(UMIN) at TP1.
(3) Calculate the XMAX
=208og (UMAX/UMIN)- (Use
1kHz BPF.)
(1)TV mode
: Pin 55 : Input 1kHz
Ext mode
: TP6 : Input 1kHz
(2) Adjust the VR56 to make
the TP56 DC voltage =2.5V.
(3)Sweep : Input amplitude
Monitor : TP1 output
Measure
: The input amplitude
just before making the
TP1 output be
distorted.
TOSHIBA
Video stage (Video amp)
TA8879N
MEASUREMENT CONDITION (VCC=9.0V, Ta =25°C)
NOTE ITEM SW & VR MODE
o 15?ng SW33B SW42 SW43 SW45 MEASUREMENT METHOD
(1) Pin 40 (Video output)
22 Video Output C A B A B : Impress 6V externally
Drive Current (Max.) (2) Measure the flow into
current to pin 40.
(1)TV mode
: Vary the TV input (pin
45) DC voltage
Min. Linear Ext mode .
. : Vary the external input
Video Input .
(Pin 42 45) (pin 42) DC voltage
' (2) Monitor : Pin 40 DC voltage
A (3) Measure the Vdil, Vdi2 in
(TV) the fig. below.
23 B V40
Max. Linear E
Video Input l
(Pin 42, 45) l
0% I l
Vdi1 Vdi2 V42, V45
Video Input (1)Same as (1) for note 23.
24 Dynamic (2)Same as (2) for note 23.
Range (3)Same as (3) for note 23.
(Pin 42, 45) (4) Calculate VdiA=Vdi2 -Vdil
(1)Same as (1) for note 23.
Min. Output (2) 'lt,tis:,ruemt,euttyl'nd
(Pin 42, 45) . . p
mmlmum output.
25 v40
Vdo2 _-_-------
Max. Output -LI,jii''-
(Pin 42, 45) Vdol
- V42, V45
30 2001-06-25
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
19, 20
MEASUREMENT METHOD
AC Gain
(Pin 42, 45-9
Pin 40)
Frequency
Response
(Pin 42, 45-9
Pin 40)
Contrast
Control Gain
Variable
(Max.)
(1)TV mode
: Pin 45 (TV input) :
Input 0.4Vp_p, 10kHz
sme wave
Ext mode
: Pin 42 (Ext input) :
Input 0.2Vp-p, 10kHz
sme wave
(2) Measure
: Pin 40 (Video out)
output amplitude v40.
(1)TV mode
: Pin 45 (TV input) :
Input th4Vp-p, 100kHz
and 6MHz
Ext mode
: Pin 42 (Ext input) :
Input 0.2vp-p, 100kHz
and 6MHz
(2) Same as (2) for note 26.
(3)Calculate Gf1
100kHz
--208og v 40 )
/ v 40
for each mode.
(1)Same as (1) for note 26.
(2) Measure the video output
(pin 40) amplitude v40.
v40max
: In case of max. contrast
U4Omin
: In case of min. contrast
(3) Calculate AGct
= 208og (U40max/v40min)
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
19, 20
MEASUREMENT METHOD
Contrast
Control
Voltage Range
Contrast
Control Center
Voltage
(1)Same as (1) for note 26.
(2) Monitor the video output
(pin 40).
Vary the contrast from min
to max. Measure the
contrast adjusting terminal
(pin 43) DC voltage.
(3) Calculate the Avct in the
fig. below.
100% --_----_
90% ----
AVct V43
(1)Same as (1) for note 26.
(2) Same as (2) for note 28.
(3) Measure the contrast
adjusting terminal (pin43)
DC voltage to make the pin
40 output amplitude
= (v40max + v40min) / 2
TOSHIBA TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
NOTE ITEM SW & VR MODE
o 195ng SW33B SW42 SW43 SW45 - MEASUREMENT METHOD
TV-aEXT
(1)Set : Ext mode
(2) Pin 45 (TV input)
: Input 3MHz, ll/p-p,
sine wave.
(3) Measure the 040 TV
: pin 40 signal
amplitude
(4) Calculate VT-OE = 20hog
31 TV-EXT C (TV) (Ext) A (TV) (v40TV/1.5vp-p)
Crosstalk (Adj) EXT-9TV
B B B (1)Set . TV mode
(Ext) (TV) (Ext) .
(2) Pin 42 (Ext input)
: Input 3MHz, 0.5Vp-p
sme wave
(3) Measure the U40 EXT
: Pin 40 signal
amplitude
(4) Calculate VE-ir = 208og
(v40 EXT/1.5vp-p)
15’ng SW33B SW42 SW43 SW45 Bright -
(1) Pin 42 (Ext input)
Input 100kHz, 0.5Up-p,
sine wave
(2) Pin 33 (Chroma input)
TV-9EXT : Impress the external
Mode A voltage of 5V DC
32 . . C - A B - through 30kQ
Switching (Max.) .
resistance
(3) Decrease the pin 33 external
voltage from 5V DC.
(4) Measure the pin 33 DC
voltage just after the output
signal appeared at pin 40.
33 2001-06-25
TOSHIBA
TA8879N
No. ITEM
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
19, 20
SW42 SW43 SW45
Bright
MEASUREMENT METHOD
EXT-9TV
Switching
AC Gain
34 (Pin 42, 45-9
Pin 34)
(Max.)
(1) Pin 45 (TV input)
: Input 100kHz, 1.0Vp_p
sme wave
(2) Pin 33 (Chroma input)
: Impress the 0V external
voltage through 30kn
resistance.
(3) Increase the external voltage
from 0V.
(4) Measure the pin 33 DC
voltage just after the output
signal appeared at pin 40.
(1) Input 10kHz 0.4Vp-p
sinewave to pin 45.
(2)SW33B , A, SW42 , B,
SW45 ; A
(3) Measure V34T
; AC amplitude of pin 34.
(4)G 02’ = V34T / 0.4
(5) Input 10kHz thill/p-p
sinewave to pin 42.
(6) SW33B ; B, SW42 ; A,
SW45 ; B.
(7) Measure V34E
; AC amplitude of pin 34.
35 Brightness
Voltage
SW36A SW36B SW37
Bright
Control Adjust
(1) Pin 38 (Brightness control)
: Adjust to make the Y
output terminal (pin 16)
output voltage during
the trace period be
(2) Measure the pin 38 output
voltage.
TOSHIBA
TA8879N
NOTE MEASUREMENT CONDITION (VCC=9.0V, Ta =25°C)
ITEM SW & VR MODE
No. SW19 SW20 SW36ASW36B SW37 Bright MEASUREMENT METHOD
(1)Same as (1) for note 34.
(2) Higher the brightness
terminal (pin 36) voltage by
Brightness 0.5V.
36 Control C C B B C Adj (3) Measure the V16
Sensitivity : Pin 16 output DC
voltage.
(4)Calculate the GBR =(V16-
(1) Adjust the Brightness VR to
make the video output (pin
Min. Linear 16 eutput) during the trace
. period be 5V.
Video Input . .
(Pin 37) (2) Varythe Vitieo input
terminal (pin 37) DC voltage.
(3) Measure the Vdi3 and Vdi4
in the fig. below.
Max. Linear 123::
Video Input
(Pin 37)
0% Vdi3 Vdi4 V37input voltage
Video Input (1)Same as (1) for note 36.
38 Dynamic (2)Same as (2) for note 36.
Range (Pin 37) (3)Same as (3) for note 36.
(4) Calculate VdiB =Vdi4 -1/di3
(1)Same as (1) for note 36.
(2) Same as (2) for note 36.
Min. Output (3) Measure the Vdo4 and Vdo3
(Pin 37) in fig. below.
Max. Output
(Pin 37)
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
SW37 Bright
MEASUREMENT METHOD
Dynamic
Range of 2nd-
Differential
Video Input
AC Gain
(Pin 37-Y
Pin 16)
(Max.)
(1) Adjust
: Brightness control to
make Y output (pin16)
output during the trace
period be 3.8V
(2) Set
: Sharpness control (pin
36) voltage =6.5V
(3) Pin 36 (sharpness control)
: Apply 2.4MH2, vary
amplitude
(4) Measure the Vdip1
: Pin 36 input amplitude
which make the upper
side wave amplitude of
pin 16 output be 80%
of the maximum.
(5) Adjust
: Brightness control to
make Y output (pin16)
output during the trace
period be 5.6V
(6) Pin 36 (sharpness control)
: Apply 2.4MHz, vary
amplitude
(7) Measure the Vdip2
: Pin 36 input amplitude
which make the lower
side wave amplitude of
pin 16 output be 80%
of the maximum.
(8) Vdip=min Ndipl, Vdipz)
(1) Adjust
: Brightness VR to make
the Y output (pin 16)
output be 4V
(2) Pin 37 (video input)
: Input 10kHz, 0.5Vp-p
(3) Measure the v16
: Pin 16 output amplitude
TOSHIBA TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
ITEM SW & VR MODE
o SW19 SW20 SW36ASW363 SW37 Bright - MEASUREMENT METHOD
(1)Same as (1) for note 40.
(2)Video input (pin 37)
Frequency : Input 0.5Vp_p, 100kHz
Characteristics A and 6MH2.
42 (Pin 37-o C C B (Max.) B Adj (3) Same as (3) for note 40.
Pin 16) (4)Calculate GS
6MHz 100kHz
=20€og(1)Same as (1) for note 40.
(2)Video input (pin 37)
: Input 0.5Vp.p, 2.4MH2
Gain Variation (3) Measure the pm 16 output
43 (min. A - amplitude at picture
(Adj) sharpness VR (pin 36) max
sharpness) .
and mm.
(4)462?”
--208og (U15MIN/U16MAX)
(1)Same as (1) for note 40.
(2) Pin 36 (sharpness control)
: Input 2.4MHz, 0.1Vp-p
(3) Measure the U15 sharp
Gain of : Pin 16 voltage
44 Picture A A C (4) Pin 37 (Video input)
Sharpness B (Max.) B : Input 2.4MHz, 0.1Vp-p
Control (5) Measure the 015 main
Pin 16 voltage
(6)Calculate Gps
=208og (v15 sharp/v15
37 2001-06-25
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
Bright
MEASUREMENT METHOD
Pictu re
Sharpness
Control
Characteristics
Picture
Sharpness
Control Range
(1)Same as (1) for note 40.
(2) Pin 37 (Video in)
: Input 0.5vp-p, 100kHz
and 2.4MHz
(3) Measure the
2.4MHz 100kHz
v 16 ' v 16
: Pin 16 output voltage
(4)Calculate 635=2oeog
2.4MH2 100kHz
(0 16 /v 16 )
(1)Same as (1) for note 40.
(2) Pin 36 (Sharpness control)
: Input 2.4MHz, 0.1Vp-p
Pin 37 (Video in)
: AC ground
(3) Change
: Sharpness VR from min
to max
Measure V 36
: pin 36 DC voltage to
make the pin 16 output
be 90% of the one at
the VR max-
(4) Pin 37 (Video in)
: Input 2.4MH2, 0.5Vp-p
Pin 36 (Sharpness control)
: AC ground
(5) Measure V 36
: By same way as (3) but
(6) Calculate
. - H - L
:z1Ws--1/'3'6 V36
U16 U16
100% - 100% -
l 10% ----
0% - 1 0% -
TOSHIBA
TA8879N
NOTE MEASUREMENT CONDITION (Vcc=9.0V, Ta =25°C)
ITEM SW & VR MODE
o SW19 SW20 SW36ASW36B SW37 Bright MEASUREMENT METHOD
47 V-BLK Pulse Measure the Yout (pin 16)
Output Level output V-blanking voltage.
(1)Same as (1) for note 40.
(2) Pin 16
C C B B C Adj : Connect to VCC .
through Ikft resister
48 Y Output (3) Measure V#16
Drive Current : Pin 16 output voltage
during the trace period
(4) Calculate V -v
: '#16=CC+#16 (mA)
39 2001-06-25
TOSHIBA
TA8879N
OSD interface stage
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
SW & VR MODE
SW3 5 -
MEASUREMENT METHOD
OSD Output
DC Voltage
(1) Apply external voltage 4.3V to pin 33.
(2) Apply external voltage 5V to pin 29.
(3) Measure DC voltage.
Pin 15 . V OUTR
Pin 17 . V OUTG
Pin 18 : v lum,
(4) Measure picture period voltage.
Pin 16 : v lum,
(5) Apply external voltage 5V to pin 19 and measure
picture period voltage of pin 16 and DC voltage
of pin 17, 18.
(6) Apply external voltage 5V to pin 20 and measure
picture period voltage of pin 16 and DC voltage
of pin 15, 18.
(7) Apply external voltage 5V to pin 28 and measure
picture period voltage of pin 16 and DC voltage
of pin15, 17.
OSD Output
Hi Voltage
(1) Apply external voltage 5V to pin 19.
(2) Measure DC Voltage of pm 15 ' VOUTR
(3) Apply external voltage 5V to pin 20.
(4) Measure DC voltage of pm 17 , VOUTG
(5) Apply external voltage 5V to pin 28.
(6) Measure DC voltage of pm 18 , VOUTB
Threshold
Voltage
(1) Apply external voltage to pin 19, raise it from
(2) Measure pin 19 voltage to change pin 15 DC
voltage.
Threshold
Voltage
(1) Apply external voltage to pin 20, raise it from
(2) Measure pin 29 voltage to change pin 17 DC
voltage.
40 2001-06-25
TOSHIBA
TA8879N
MEASUREMENT CONDITION (Vcc=9.0V, Ta =25°C)
No. ITEM SW & VR MODE MEASUREMENT METHOD
SW35 -
BOSD (1) ()','." external voltage to pm 28, raise it from
53 Threshold C (2) Measure pin 28 voltage to change pin 18 DC
Voltage
voltage.
(1) Apply external voltage to pin 29, raise it from OV.
54 YS Threshold C (2) Measure pin 29 voltage to change pin 18 DC
Voltage
voltage.
Output High (1) ROSD in (pin 19) : Input signal (b), Wp-p.
Level Rise C (2) Measure TR, tpR, rp, tPF in fig. (c) with R-Y
Time output
Output High (pin 15).
Level (3) Same for GOSDin (pin 20), G-Y output (pin 17).
Propagation C (4) Same for BOSDin (pin 28), B-Y output (pin 18).
Delay Time tH
(Rising Edge) (a) 'r‘—-€
Output High
Level Fall C
55 (b)
Output High
Propagation C
Delay Time
(Falling Edge) (c)
41 2001-06-25
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC = 9.0V, Ta = 25°C)
(Falling Edge)
No. ITEM SW & VR MODE MEASUREMENT METHOD
SW35 -
Output Low (1) Adjust brightness VR to make 5V picture period
Level Rise C voltage at pin 16.
Time (2) Apply 5V to pin 29. Adjust OSD brightness VR to
Output Low make 4V picture period voltage at pin16.
Level (3) ROSD in (pin 19) : Input signal (b), 5Vp-p.
Propagation C (4) Measure TR: tpR, TF1 tPF in fig (c) with pin 16, 17,
Delay Time 18.
(Rising Edge) (5) Input sig (b) 20, measure with pin 15, 16, 18.
Output Low Input sig (b) 28, measure with pin15, 16, 17.
Level Fall C Input sig (b) 29, measure with pin15, 16, 17, 18.
Output Low
Propagation C
Delay Time
(c) ----_-------_----_--
42 2001-06-25
TOSHIBA
TA8879N
Chroma stage
MEASUREMENT CONDITION (VCC=9.0V, Ta=25°C)
ITEM SW & VR MODE
No. MEA REMENT METH D
12 32 33A 33B 34 36 42 43 44 45 46 SU O
(1)Pin 33
: Input rainbow
color bar
signal
v170.015 0.1 0.2 Burst
signal
TV mode U33 (Vp-p)
A B B A
57 ACC A A 5 (TV) OFF OFF (TV) Set (TV) f Burst
Characteristics A B A to B B 0.01 0.2 O'asignal
2.01/ Ext mode 1233 (Vp-p)
(Ext) (Ext) (Ext)
(2) Measure a, Calculate
(Note 1)
Input video signal
(sync signal) is to
be selected subject
to the mode (TV,
(Note 2)
Unused pin is to
be grounded
through
capacitance.
TOSHIBA
TA8879N
MEASUREMENT CONDITION (Vcc=9.0V, Ta=25°C)
SW & VR MODE
MEASUREMENT METHOD
Color Control
Voltage
Color Control
(1) Pin 33
: Input rainbow
color bar
o.15vp_p
(2) Vary
: Color Control
(pin 44)
Monitor
: B-Yout (pin 18)
(3) Measure V44.
Calculate AV44.
Pin 44 DC
voltage
(4) Tint control is to be
center.
(5) Pin 44 is to be
grounded through
capacitance in TV
TOSHIBA
TA8879N
NOTE MEASUREMENT CONDITION (VCC=9.0V, Ta=25°C)
ITEM SW & VR MODE
No. 12 32 33A 33B 34 36 42 43 44 45 46 MEASUREMENT METHOD
(1) Same as (1) for note
Uni-color (2) Vary
Control Gain : Contrast control
Variation (pin 43)
Range Monitor the B-Yout
(pin 18)
(3) Measure V43.
Calculate AV43.
(4) Same as (4) for note
Uni-color 58.
Control B A A (5) Same as (5) for note
59 Adjust l A OFF OFF B (Adj) B A (Adj) 58.
. A (6) Calculate
Voltage eg
A A : eu=20€og 'i',-:,)
Uni-color JI',
Control 50%
Adjust. "Ir", I
Voltage .
V43 Pin 43 DC
Range voltage
Measure
Chroma Input A : Pin 33 DC volta e
60 Terminal B lt c B B for TV 1Sh1"lt'
Voltage B
mode each.
45 2001-06-25
TOSHIBA
TA8879N
MEASUREMENT CONDITION (Vcc=9.0V, Ta=25°C)
SW & VR MODE
34 36 42
MEASUREMENT METHOD
Tint Control
Range (Part)
Tint Control
Voltage
Tint Control
Voltage
Frequency
Control
Sensitivity
OFF OFF B
(1) Pin 33 (Chroma in)
: Input 3.58MH2,
150mVp-p
(2) Vary
: Tint control
(pin 46)
Monitor
: B-Yout (pin 18)
Find tint center
: The point make
B-Y output max
Measure
: the output at
max tint control,
min tint control.
Calculate variable
phase angle.
(1) Same as (1) for note
(2) Measure terminal
voltage at pin 46,
which gives 10%--90%
of Tint control range
(AV45).
(3) Measure terminal
voltage at pin 46,
which gives 50% of
Tint control range
(V46).
Monitor
: The signal frequency
at B-Yout (pin 18)
: Apply DC voltage to
APC terminal
(pin 12)
Calculate
: The frequency
control sensitivity
around
fsc : 3.579545MHZ
TOSHIBA
TA8879N
MEASUREMENT CONDITION (Vcc=9.0V, Ta=25°C)
SW & VR MODE
34 36 42
MEASUREMENT METHOD
APC Pull-in,
Hold Range
Killer
Operation
Input Level
Demodulation
Output DC
Voltage
Differential
Output
OFF OFF B
Pin 33 (Chroma in)
: Input 0.15Vp-p
(frequency : Vary)
: Pull in range (Color
control pin 44 "H"
at pull in)
(1) Pin 33 (Chroma in)
: Input 50mVp-p
Burst signal
Attenuate
: Burst signal with
attenuater.
Measure
: Burst level which
make pin 44
(Color control) be
(2) Same as (2) for note
OFF OFF
(1) Pin 33 (Chroma in)
: Input 0.15Vp-p
rainbow color bar
(2) Minimize
: Color control
(pin 44)
Measure
: The color
differential
output (pin 15,
17, 18) DC
voltage
(1) Same as (1) for note
(2) Measure
: The each axis
max in tint
control varing
TOSHIBA TA8879N
MEASUREMENT CONDITION (Vcc=9.0V, Ta=25°C)
ITEM SW & VR MODE
o 12 32 33A 33B 34 36 42 43 44 45 46 MEASUREMENT METHOD
(1) Pin 33 (Chroma in)
: Input rainbow
Max. Color color bar (Burst
. A A A level 250mVp-p)
68 gig?” A A A A OFF OFF B (Max)(Max) A (Adj) with "Burst :
Chroma=1 : 2.5"
(2) Same as (2) for note
(1) Same as (1) for note
(2) Measure
: The each axis
Relative A max. in hue
Amplitude (Min) control (pin 46)
varing.
Calculate based
on B-Y.
(1) Pin 35 (Chroma in)
: Input 0.15Vp-p
sme wave.
(2) Adjust tint control
(pin 46) so that the (B-
Y) output is the
maximum.
(3) Adjust tint control so
that the (R-Y), (G-Y)
outputs are the
minimum, and
measure (B-Y) output
amplitude.
(4) Calculate the ratio (x)
of (B-Y) outputs from
(2) and (3).
(5) R-Y
90°+COS"x
360° - (90° + COS-lx)
70 Relative Phase
48 2001-06-25
TOSHIBA
TA8879N
MEASUREMENT CONDITION (Vcc=9.0V, Ta=25°C)
SW & VR MODE
st 36 42
MEASUREMENT METHOD
Demodulation
Output
Residual
Carrier
Demodulation
Output
Residual
Harmonics
S-VHS SW
Threshold
Voltage
OFF OFF B
(1) Vary tint control
(pin 46).
Measure the max.
amplitude of residual
carrier wave for color
differential output.
(2) Same as (1) for note
(1) Same as (1) for note
(2) Set
: B-Yout (pin 18)
amplitude =1Up-p
Measure
: The level of
higher harmonic
in color
differential
output.
(1) Connect external
power suply via 3kQ
and adjust the voltage
to make pin 33 DC
voltage be 2.6V.
(2) Input rainbow color
bar signal 10mUp-p
(ACC Max sensitivity).
(3) Monitor pin 18 B-Y
Reduce external
power supply voltage.
Measure pin 33 DC
voltage to raise B-Y
amplitude.
TOSHIBA
TA8879N
Deflection stage
NOTE MEASUREMENT CONDITION (VCC=9.0V, Ta =25°C)
ITEM SW & VR MODE
SW24 SW26 SW33 - MEASUREMENT METHOD
0.1 F (1)Decrease
Sync Cob' . ’u : External voltage V from
. + Cl
74 Separation ON ON OFF E K 3V to turn P.
Input Current frequency at pm 31
Sensitivity from 297H to 232.25H
(2) Measure : Ampere meter
(1)Set
: External voltage V to
the voltage at pin 24
(hlpF Pulse input open (e.7.2V)
a (2) Input : Pin 45, fig. below
'd? (3) Monitor : Pin 24
AFC Phase V1 (mV)
4 I I I ---,
75 Detection OFF OFF e; ( )Calcu ate DET 1 (k0)
Current 2
V F-ol
ll Input Pulse I I I I I I I I0.5Vp_p
Pin 24 c-l-d-mes
(1) Input
'Pt. iso-ot'' TVin '2/,iife'eyotgi/z"
76 letr.tion ON ON 65 c 2Vp-p (2) Monitor : Pin 24
Masking K’
Period (3) Measure
: Mask period : H.AFC
phase det. stop period
32fH vco 'ji, (1)5gt : H.VCC=4V
77 Oscillation m Check (2) Pin 14 : No power supply
point (3) Check : OSC at the check
Start Voltage :1 .
CSB point
TOSHIBA
TA8879N
NOTE MEASUREMENT CONDITION (VCC=9.0V, Ta =25°C)
ITEM SW & VR MODE
No. SW24 SW26 SW33 MEASUREMENT METHOD
(1) Vary : HA/CC
Horizontal g; :lllregstheNo power supply
78 Output Start ON ON OFF .
Voltage : HA/CC which make
H.pulse be appeared at
pin 23.
Horizontal .
. Measure : OSC frequency at pm
79 Free-running 23
Frequency
(1) Pin 24
: Ground through 68kQ
resistance
(2) Measure
: The fmax : OSC
frequency
Horizontal at pin 23
80 Frequency (3) Pin 24
Control Range : Connect to HA/CC
through 10kQ
resistance
(4) Measure
: the fmin : OSC
frequency
at pin 23
(1) Sweep
: Pin 24 voltage 10.05V
Horizontal against the voltage
81 Frequency which make the H OSC
Control frequency =15.734kHz
Sensitivity (2) Measure, Calculate
: OSC frequency
changing at pin 23
(1) Monitor : Pin 23
(2) Calculate T023
Horizontal V -
82 Output Duty V/(Z) t1 t2
T023 "tit:, X 100 (%)
51 2001-06-25
TOSHIBA
TA8879N
NOTE MEASUREMENT CONDITION (VCC=9.0V, Ta =25°C)
ITEM SW & VR MODE
No. SW24 SW26 SW33 - MEASUREMENT METHOD
(1) Monitor : Pin 23
Measure VH23
Horizontal : Voltage during "H"
83 Output ON ON OFF - period
Voltage (2) Measure VL23
: Voltage during "L"
period
(1) Increase
X-ray : external voltage V to
84 Protection V make the waveform at
Threshold pin 23 be disappeared
Voltage CL'' state)
(2) VI22 = V
(1)Same as note 84 to make
the pin 23 be "L". (at SW26
X-ray (2)SW26 : OFF
85 Protection - (3) H. VCC=2.5V
Hold Voltage SW26 : ON
H.Vcc=9V
Check : Pin 23 is "L" for
(1) Monitor
: Waveform
Vertical at pin 31
86 Output Pulse ON (2)Calculate : Trl
Width (1) Monitor : Waveform at pin
Ce" 10km Open 31
(2)Calculate : Tr1
Ramp Max.
87 Output OFF Measure the pin 31 DC voltage
Voltage
TOSHIBA
TA8879N
MEASUREMENT CONDITION (VCC=9.0V, Ta =25°C)
ITEM SW & VR MODE
o SW24 SW26 SW33 MEASUREMENT METHOD
(1) Measuring point
: Monitor the waveform
at this point
2 Cal late I mA
Ramp Max. ( ) Elu(mV)031 ( )
88 Output ON ON OFF Measure = 5._(n)
Current point .
__________ _L
_A_)\TV
(1) Measure
V rti I M u, : Pin 27 output voltage vs
89 e ffl. . + 3 pin 30 applied DC
Amplifier Gain I A voltage V
(2)Calculate : GV
90 geztlcatl M (1) Pin 30 : Impress 8V
u pu ax. (2) Measure : Pin 27 voltage
Voltage J
Vertical
91 Output Min. ii; Same as note 88 but pin 30 3V.
Voltage J
Vertical Ciii a (1)Pin 30 : SV
92 Output Max. > (2) Measure : Pin 27 output
Current J ay current
(1)Sweep
. : Vertical sync frequency
Pull-in Range of input video signal by
93 of Vertical 0 5H step
Oscillator (2) Measure
: Vertical pulI-in range
TOSHIBA
rcyy,rz-t
'WWV'“
uxou UMOSL
TA8879N
tl) N t
ti') --I
g)-tet,-t
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grf LO’O
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m '-t Mr
b---A mo'o
RY 'r-t
(ii)----'
grfriro
a dr/LO'U
TEST CIRCUIT 1
DC characteristics
TA8879N
TA8879N — 54
TEST CIRCUIT 2
PIF, SIF stage
T953 TP47A
Hrfitg
El TP47B
®®®®416®®
(5)101
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TA8879 N
grft'tr
TP1 TPZ
{jxl's
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TPSB I
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511°C?
-: Vcc-9V
TA8879N — 55
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TOSHIBA
TA8879N
TOSHIBA
TA8879N
Video, OSD interface stage
TEST CIRCUIT 3
®®®®©®®®®
TA8879N
U’IS'E
d’il0'0 dri00r
USdEOS
06E MD
gr-Zee-ape-,
in’glO'O
U’H'E drit
U081! U068
TP15 TP16 TP17 TP18
TC74HC123P
19 20 21
Vcc-BV
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sirf LO'D
grf00t
TA8879N - 56
TEST CIRCUIT 4
Chroma stage
Alsw33a
. mm E
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J; VCC=9V
TA8879N - 57
} TC74HC123P
Umkflfi) (i) Q) G) (6) QR 5?.
16q9pF
TOSHIBA
TA8879N
TEST CIRCUIT
Deflection stage
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TA8879N
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1000 pF
TC74HC123P
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TA8879N — 58
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TOSHIBA
TA8879N
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TOSHIBA TA8879N
PACKAGE DIMENSIONS
SDlP56-P-600-1.78 Unit : mm
f-lf-lf-lr-Tr-lf-IF-ll-lr-ill-lf-lf-lf-If-Ir-Trl..-]}-!.).)..]
14.0:02
LLu.dLdLJLLclL..lL..lt-lcjclclcllLclclclcll-ll-lcJclclclcJl-lulul
50.9MAX
5th4Hh2
0.51m: ‘3.5:o.2
1.197TYPs,
Weight : mama (Typ.)
mo 2001-06-25
TOSHIBA TA8879N
RESTRICTIONS ON PRODUCT USE
000707EBA
OTOSHIBA is continually working to improve the quality and reliability of its products.
Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent
electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer,
when utilizing TOSHIBA products, to comply with the standards of safety in making a safe
design for the entire system, and to avoid situations in which a malfunction or failure of such
TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified
operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please
keep in mind the precautions and conditions set forth in the "Handling Guide for
Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc..
OThe TOSHIBA products listed in this document are intended for usage in general electronics
applications (computer, personal equipment, office equipment, measuring equipment, industrial
robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor
warranted for usage in equipment that requires extraordinarily high quality and/or reliability or
a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended
Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship
instruments, transportation instruments, traffic signal instruments, combustion control
instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA
products listed in this document shall be made at the customer's own risk.
0 The products described in this document are subject to the foreign exchange and foreign trade
OThe information contained herein is presented only as a guide for the applications of our
products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of
intellectual property or other rights of the third parties which may result from its use. No
license is granted by implication or otherwise under any intellectual property or other rights of
TOSHIBA CORPORATION or others.
0 The information contained herein is subject to change without notice.
61 2001-06-25
:
www.loq.com
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