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TA8867ANTOSHIBAN/a1avaiVIDEO, CHROMA, AND SYNC, SIGNAL PROCESSING IC FOR PAL/NTSC-SYSTEM COLOR TELEVISIONS


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TA8867AN
VIDEO, CHROMA, AND SYNC, SIGNAL PROCESSING IC FOR PAL/NTSC-SYSTEM COLOR TELEVISIONS
TOSHIBA TA8867AN
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA8867AN
VIDEO, CHROMA, AND SYNC. SIGNAL PROCESSING IC
FOR PAL/NTSC-SYSTEM COLOR TELEVISIONS.
The TA8867AN is Video, Chroma, and Sync. Signal
processing IC for PAL/NTSC-system color televisions
integrated in a 48pin shrink DIP package.
The TA8867AN can correct gain and phase error in 1H
glass delay line of PAL-system color demodulator
automatically.
FEATURES
SDIP48-P-600-1.78
Weight : 4.81g (Typ.)
0 Black stretching circuit
It Sharpness control circuit with internal delay lines
It DC restoration control
0 Video noise reduction circuit
Chroma
It Automatic adjustment circuit for 1H glass delay line of PAL-system color demodulator
0 Color differential signal output (R-Y, B-Y)
0 RGB primaly color signal output
It Linear RGB input
Sync. processing
It Sync. separation circuit with automatic separation level control
0 Dual loop AFC
o Ajustment-free horizontal and vertical oscillation based on count-down system
0 Automatic vertical frequency identification (50/60Hz)
o Forced Switch (50/60Hz)
0 X-ray protection circuit
1 2001-06-25
TOSHIBA
BLOCK DIAGRAM
32m VCO
H. AFC Filter 1
H. AFC Filter 2
H. Ramp
Sync. Input
Y Input
APL Filter
Black Peak Det.
DL Control
B-Y Input
R-Y Input
V/C VCC
APC Filter
R-Y Output
B-Y Output
Killer Filter
Chroma Input
V/C GND
1H DL Input
1H DL Adj.
1H DL Adj.
1H DL Output
Comparator
Sync. Sepa
32m VCO
Pedestal
2t Strgtch, Apa. CTRL,
es. at. YNR
Correction
Sharpness
Color,
Contrast
Com parator
Chroma
Killer
ACC Am p.
Blanking
Switch
50/60 Switch
DL Amp.
50/60 Ident.
Coincidence detector
Contrast
MATRIX
TA8867AN
G) v- U
g. fl) E
'00 - m Def VCC
CG) ur £0
TA' 2; "ii"; V. Sepa. Filter
U'U m Ln
V. Counter
V out VP Output
F.B.P. Input
. Counter,
H out H. Output
i'? X-RAY Protection
L'' Def GND
B Output
Clamp Filter (B)
Linear RGB G Output
Interface
Clamp Filter (G)
R Output
Clamp Filter (R)
B Input
G Input
R Input
Brightness
Contrast
Sharpness Sharpness
YNR YNR
5 Station Ident
TOSHIBA TA8867AN
TERMINAL FUNCTION
PIN PIN NAME FUNCTION INTERFACE CIRCUIT
This terminal is for adjustment free Ng jt t'
32fH voltage controlled oscillator.
1 32fH VCO A ceramic resonator is connected.
Recommended ceramic resonator is
CSB503F30 (Murata Electronics). op
A Iag-Iead type filter is connected to
this terminal.
2 H. AFC Filter 1 Horizontal oscillator frequency is
controlled by this terminal voltage. (i)) I Ps
48 . - -
. . . O "ii
A capacitor IS connected to this N
terminal.
H. AF Fil 2 . .
3 C iter Horizontal pulse phase IS controlled (ii',,
by this terminal voltage. N a it
® I I u, "
(D i < aj
This terminal is for H. Ramp wave 'ci,' *
generater. G) V
4 H Ramp H. Ramp wave IS reference for sync. (ji, "ii, r-
signal processing circuit. lr It a it o
® I G _I_This terminal is for input terminal of
sync. signal. (4) . '
Typical sync. signal amplitude is i _,,d
2Vp-p (from sync. top to 100lRE). '.N
lti forasitmalsouceto
5 Sync. Input .5 nesessary 9 lg u Ci)-
drive with low impedance.
When a resistor (2500kfU) connect 2 it.
between this terminal and GND, ® . f
sync. separation level is higher than
at normal condition.
3 2001-06-25
TOSHIBA TA8867AN
2') PIN NAME FUNCTION INTERFACE CIRCUIT
This is Y Input terminal. (i))
Typical Y signal amplitude is 1Vp-p
6 Y Input (from sync. top to 100|RE). Cs?
It is necessary for a signal sauce to cc
drive with low impedance. Ci)) - -
This terminal is for APL Filter for DC
restoring circuit.
Theoricaly, the DC restoring level
(TDC) is shown as follows,
7 APL Filter TDC-- 2kg x50+100 [%]
2kQ+R --
External capacitor is about 10pF. Co) I (1)
In order to set DC restoring level to
be 100%, this terminal is kept open.
In order to cancel black stretching
function, this terminal is fixed on It
3-51/.
1 . - -
This terminal is for black peak i
detection filter for black stretching
8 Black Peak Det. circuit. ,
Delay line in sharpness circuit is
controlled by this terminal.
If voltage o--5v is applied to this
terminal, delay time of the delay
line will be change 125ns--210ns
(Typ.).
If this terminal is open, delay time
of the delay line is 150ns (Typ.).
9 DL Control
Color differential signal input
10 B-Y Input terminal.
11 R-Y Input The signal goes into color-matrix
circuit after clamping.
4 2001-06-25
TOSHIBA TA8867AN
I'). PIN NAME FUNCTION INTERFACE CIRCUIT
VCC for Video and Chroma stage.
12 V/C v . . -
CC Recommend applied voltage IS 9V.
These terminals are for a Xtal l 1: g
13 oscillator for chroma demodulator. ® t
15 VCXO It is necessary for P.C.B pattern to , o-
be nea between the terminal and G
Xtal. f f o 0
This terminal is for APC filter. C(2)
. It is necessary for relative error
14 APC Filter between registers in APC Filter to be Cid.
less than 11%. (io)
16 R-Y Output These terminals are for color 503
17 B-Y Output differential signal output. "
This terminal is for color killer filter.
When killer active, this terminal ®
voltage is 4.5V. When PAL is
18 Killer Filter identified, this terminal voltage goes
to 3.8V or 5.2V. When NTSC is
identified, this terminal voltage goes
to 3.8V.
»—>i——>|—-
This terminal is for chroma signal
input.
When AKB IC is used with
19 Chroma Input TA8867AN, a resister (about 56km
connected between this terminal and
GND, so horizontal and vertical
blanking do not appear.
5 2001-06-25
TOSHIBA
TA8867AN
PIN NAME
FUNCTION
INTERFACE CIRCUIT
20 V/C GND
GND for Video and Chroma circuits.
21 1H DL Input
This is input terminal of chroma
signal through 1H glass delay line.
Another function of this terminal is
vertical frequency force switch.
When applied voltage to the
terminal is more than 5.8V, vertical
pull-in range is 261.5H-353H (50Hz
Mode). When applied voltage is
lower than 3.8V, vertical pull-in
range is 232H--297H (60Hz Mode).
When open or applied voltage is
4.5V, vertical pull-in range is
232H--353H (Automatic Mode).
23 1H DL Adj.
These terminals are for a capacitor
for 1H glass delay line automatic
adjustment circuit.
The phase is controlled by voltage of
pin 22. The gain is controlled by
voltage of pin 23.
1H DL Output
This terminal is for chroma signal
output for 1H glass delay line.
Another function of this terminal is
vertical frequency identification
output.
When vertical frequency is 50Hz, DC
level of this terminal is 5.3V. When
vertical frequency is 60Hz, DC level is
Station Ident
This terminal is for station
identification and color identification
output.
When vertical sync. isn't detected,
TA8867AN identifies as no signal
input, and this terminal will be 0V.
When vertical sync. is detected and
color signal isn't detected, this
terminal will be 2.5V. When vertical
sync. and color signal is detected,
this terminal will be 5V.
Pin 25 Output Voltage
No signal : 0V
B/W : 2.5V
Color : 5.0V
46.5kQ 17m
lOkQ 83k0
TOSHIBA
TA8867AN
PIN NAME
FUNCTION
INTERFACE CIRCUIT
This terminal is for Y noise reduction
level control.
Control voltage range is O~5V.
When applied voltage to this
terminal is increase, Y noise
reduction level will be high.
This terminal is pulled down to 0V
when B.G.P is high. So, connect a
limiting current resister between this
terminal and output terminal of a
controller if it will be necessary.
Sharpness
This terminal is for sharpness control.
Control voltage range is O~5V.
When applied voltage to this
terminal is increase, sharpness level
will be high.
When this terminal is pulled up to
VCC: RGB output is fixed to 3.3V.
This function is for AKB IC.
This terminal is for Tint control.
Control voltage range is O~5V.
When applied voltage to this
terminal increases, color
demodulation phase will increase.
When applied voltage is less than
1.0V, TA8867AN will be PAL Mode,
and Tint control circuit will not
operate.
This terminal is for Color control.
Control voltage range is O~5V.
When applied voltage to this
terminal increases, color level will be
TOSHIBA
TA8867AN
PIN PIN NAME
FUNCTION
INTERFACE CIRCUIT
30 Contrast
This terminal is for contrast control.
Control voltage range is tr-w.
When applied voltage to this
terminal increases, contrast level will
be high.
31 Brightness
This terminal is for brightness
control.
Control voltage range is o--5v.
When applied voltage to this
terminal increases, brightness level
will be high.
32 R Input
33 G Input
34 B Input
These terminals are for Linear RGB
input.
Typical input signal level is 0.72V
(0~100|RE) when terminated by 750.
It is necessary for a signal souce to
drive with low impedance.
This terminal is for Fast blanking
switch.
When applied voltage to this
terminal is less than 0.5V, TV signal
is outputted to RGB output. When
applied voltage is more than 1.0V,
linar RGB signal is outputted to RGB
output.
When applied voltage is more than
6.5V, contrast of linear RGB is
limited to -6dB (vs on contrast
maximum condition).
36 Clamp Filter (R)
38 Clamp Filter (G)
40 Clamp Filter (B)
These terminals are for Clamp filter
for RGB output.
TOSHIBA
TA8867AN
m“ PIN NAME FUNCTION INTERFACE CIRCUIT
® ' c:
37 R Output These terminals are for primaly color l tr
39 G Output output. C2 son <
41 B Output Maximum souce current is 4mA. 39 x é
Ci)) v u)
42 Def GND G.ND..for sync. signal processmg -
circuit.
This terminal is for X-RAY protection (4) ' - -
input.
When applied voltage to this “(0
43 giggt'on terminal is more than 3.3V, Iii?
I horizontal output is fixed to 0V. Ji--
And this condition is held until Def (P
VCC (pin 48) is less than 3.0V. (if) ' I
This terminal is for horizontal pulse
output.
Output pulse level is 0V (low), and @ ' ta
5.0V (high). E
Output pulse duty is 40% (Typ).
44 H. O t t . . . 209
u pu Output type of this terminal IS open cad?
emitter. (4)
So, it is necessary to connect a
resistor between this terminal and
This terminal is F.B.P. input. Cii)
It is necesarry for F.B.P. amplitude to k
limit to be less than H. VCC voltage (D 239.9!" '" K
at this terminal by using resisters or bi-o
45 F.B.P. Input .
a zoner diode. \I J_LHSyDC
Result of sync. separation circuit can gr =-i'i
be observed at waveform of this I F
terminal. Cii)
This terminal is for vertical pulse C4)
output.
46 VP Output Negative pulse IS outputted this 69 1009
terminal.
Output type of this terminal is open
collector. (ii) - '
TOSHIBA
TA8867AN
El"? PIN NAME FUNCTION INTERFACE CIRCUIT
(4) (I) J.
Q . -lfsyoc
47 V S Filt This terminal is for vertical sync.
. epa. I er separation filter. '
VCC for sync. signal processing
48 Def VCC circuit. -
Recommend voltage is 9V.
MAXIMUM RATINGS (Ta =25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VCC 14 V
Power Dissipation PD max 1.7 (Note) W
Applied Voltage ein 4.0 Vp-p
Operating Temperature Topr -20--65 ''C
Storage Temperature Tstg - 55~150 "C
(Note) Derated above Ta=25°C in the proportion of 13.5mW.
RECOMMENDED OPERATING CONDITION
m“ PIN NAME SYMBOL MIN. TYP. MAX. UNIT
12 V/C VCC Vcc #12 8.1 9.0 9.9 V
48 Def Vcc VCC #48 8.1 9.0 9.9
TOSHIBA
ELECTRICAL CHARACTERISTICS
TA8867AN
DC voltage characteristics (Unless otherwise specified. VCC (#12) =9V, VCC (#48) =9V, Ta=25°C)
my. PIN NAME SYMBOL MIN. TYP. MAX. UNIT NOTE
1 32fH VCO V1 5.0 5.9 7.0
2 H. AFC Filter 1 V2 6.5 7.5 8.5
3 H. AFC Filter 2 V3 3.0 3.9 4.8
5 Sync. In V5 1.5 2.3 3.1 No signal input
6 Y Input V6 3.0 3.8 4.5 Clamping Level
8 Black Peak Det. V8 5.0 5.9 6.8
9 DL Control V9 2.5 3.5 4.5
10 B-Y Input V10 4.5 5.2 6.1 Clamping Level
11 R-Y Input V11 4.5 5.2 6.1 Clamping Level
13 VCXO V13 3.5 5.0 6.5
15 VCXO V15 5.5 6.5 7.5
16 R-Y Output V16 4.0 4.8 5.6
17 B-Y Output V17 4.0 4.8 5.6 V
18 Killer Filter V18 3.7 4.5 5.3 No signal input
19 Chroma Input V19 3.0 3.8 4.6
21 1H DL Input V21 3.7 4.5 5.2
24 1H DL Output V24 4.5 5.2 6.0 No signal input
25 Station Ident V25 - - 0.2 No signal input
32 R Input V32 4.3 AC GND, pin 30 : 2.5V
33 G Input V33 4.3 AC GND, pin 30 : 2.5V
34 B Input V34 4.3 AC GND, pin 30 : 2.5V
37 R Output V37 3.5 In trace period, pin 31 : 2.5V
39 G Output V39 3.5 In trace period, pin 31 : 2.5V
41 B Output V41 3.5 In trace period, pin 31 : 2.5V
DC CURRENT CHARACTERISTICS
(Unless otherwise specified. VCC (#12)=9V, VCC (#48)=9V, Ta=25°C)
Kl'g' PIN NAME SYMBOL MIN. TYP. MAX. UNIT
12 V/C vcc ICC #12 45 75 100 mA
48 Def I/tig, kit: #48 12 23 35
TOSHIBA
TA8867AN
AC CHARACTERISTICS (Unless otherwise specified. VCC (#12) =9V, VCC (#48) =9V, Ta = 25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Input Clamping Level VCLMP - (Note 1) 3.0 3.8 4.5 V
Bri htness C nt I (Min.) 1.5
ng 0 ro
Characteristic (Center) VBRGHT - (Note 2) 3.5 V
(Max.) 4.5
Dynamic Range of Video Input Dre - (Note 3) 0.8 1.5 1.8 Vp-p
Max. Output Voltage of RGB Out. VOMAX - (Note 4) 6.5 V
Horizontal Blanking Level VHBLK - (Note 5) 1.2 V
Vertical Blanking Level VVBLK - (Note 6) 1.2 V
Vertical Blanking (50Hz) 22
Period (60Hz) TVBLK - (Note 7) 16 H
Contrast Control (Min.) -6.0
Characteristic (Center) GCONT - (Note 8) 6.0 dB
(Max.) 14.0
Frequency Characteristics Gf - (Note 9) $2.0 dB
Sharpness Control (Min.) -3.0 2.0 5.0
Characteristic GSHRP - (Note 10) dB
Y IN-9RGB OUT (Max.) 26 32 38
Delay Time Control (Min.) 75 125 -
Characteristics of tAC - (Note 11) ns
Aperture Circuit (Max.) - 210 280
Gain of DC Restore Amp. GDCA - (Note 12) 0.5
Black Stretch Amp. Maximum Gain GEXp - (Note 13) 1.5
Noise Reduction Level GNR - (Note 14) -5.0 dB
Chroma
ACC Ch t isti (Min.) (N t 15) - - 10 v
arac ens ICS (Max.) eACC - o e 400 - - m p-p
Killer Operation Level eK - (Note 16) - 1.0 3.0 ml/p-p
. . . (4.43MHZ) 1.3 1.8 -
APC Control Sensitivity (3.58MHz) BAPC - (Note 17) os 1.3 - kHz/V
APC c nt I R n (4.43MHz) f (N t 18) i600 i800 H
o ro a ge (3.58MHz) cAPC - o e i400 i600 - Z
Color Differential Signal (R-Y) 0.39
Output Level (PAL) (B-Y) eCHRM - (Note 19) 0.70 Vp-p
Color Differential Signal (R-Y) 0.50
- N 2 V -
Output Level (NTSC) (B-Y) eCHRM ( ote 0) 0.60 p-p
12 2001-06-25
Active
TOSHIBA TA8867AN
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
R I ti Am lit d (R Y) (PAL) / (N t 21) 0.42 0.56 0.70
ea Ive PII u e (NTSC) eR e3 - o e 0.63 0.84 1.05
. (PAL) 82 90 98 o
Relative Phase (R-Y) (NTSC) 6R3 - (Note 22) 105 112 125
R I ti A lit d (G Y) (PAL) / (N t 23) 0.29 0.38 0.47
ea Ive mpll u e - (NTSC) eG eB - o e 0.25 0.33 0.41
. (PAL) 211 235 259 o
Relative Phase (G-Y) (NTSC) 663 - (Note 24) 213 237 261
1H DL Gain Adjustment (Min.) -12 -8 -4
range (Max.) DLAMP - (Note 25) 4 8 12 dB
1H DL Phase (Min.) -5 -20 -40 o
Adjustment Range (Max.) DLPHS - (Note 26) 5 20 40
2:13; ftei,t,tr.,t, (Min.) - - 35 - 15
. r c erls'lcs GCOLOR - (Note 27) dB
pin10 or pin11-o (Max.) 17 20 23
pin 40 or pin 36 .
Tint Control (Min.) - 30 -45 - 50
Characteristics (Max.) 6TINT - (Note 28) 30 45 50
PAL/NTSC Select Threshold
V - N 2 . . 1.2 V
Voltage. p/N ( ate 9) O 5 0.8
Sync. processing
Sync. Sepa. Current Sensitivity 'IN5 - (Note 30) 10 20 30 pA
H. AFC Phase Detection Current 'HDet - (Note 31) 480 600 720 pA
Phase Detector Inactive (50Hz) 307--6
Period (60Hz) Ts - (Note 32) 257--6 H
2nd AFC Active Period AFCON - (Note 33) - 0.5 0.8 gs
2nd AFC Control Range AFCWid - (Note 34) 12.8 15.8 - pe;
I V I f 2f V .
Supp y o tage or 3 H CO m cho - (Note 35) 2.8 3.8 4.8 v
TOSHIBA TA8867AN
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Supply Voltage for Horizontal
. . V - N .7 4.2 4.7 V
Output In Active HON ( ote 36) 3
H . I F -R
orizonta OSC ree un fHO - (Note 37) 15.000 15.650 16.300 kHz
Frequency
Horizontal OSC PulI-ln Range PRAFC - (Note 38) A500 - - Hz
Horizontal OSC Hold Range LRAFC - (Note 39) A500 - - Hz
AFC control Sensitivity /3AFC - (Note 40) 2.2 2.7 3.4 'ef
Horizontal Pulse Duty TDUT - (Note 41) 36 40 44 %
. (Low) VHL - 0.0 0.2
Horizontal Pulse Level (High) VHH - (Note 42) 4.7 5.0 5.3 V
X-RAY Protection Threshold
Voltage VXON - (Note 43) 3.0 3.3 3.6 v
X-RAY Protection Hold Voltage VXHLD - (Note 44) - - 3.0 V
Vertical Pulse Width TVp - (Note 45) - 10 - H
. (50Hz) 261.5-353
Vertical OSC PuII-In Range (60Hz) PLV - (Note 46) 232--297 H
Vertical OSC Free-Run (50Hz) - 353 -
Frequency (60Hz) fVO - (Note 47) - 297 - H
. - 50H 5.2 5.7 6.2
Vertical OSC Pull In Range ( z) VSWSO - (Note 48) V
Select Voltage (60Hz) VSW60 2.6 3.1 3.6
. 50H 4.8 5.3 5.8
.1/.ertirf.al 1requenfy ( z) VIDSO - (Note 49) V
identification voltage (60Hz) V|D60 2.8 3.3 3.8
Linear RGB processing
RGB Input Dynamic Range DTRGB - (Note 50) 0.7 2.0 - Vp-p
Gain (RGB input-9RGB Output) GIO - (Note 51) 10.0 13.5 17.0 dB
Contrast Control Limitting Level GLIMIT - (Note 52) -3.0 -5.5 -9.0 dB
. . TV-MIB V - - 1.0
Switching Threshold ( ) TV/TXT - (Note 53) V
Voltage (RGB-9OSD) VTX / OSD 5.8 6.5 7.2
. . . (TV-sRGB) tTV/TXT - - 100
h T - N 4
Switc mg Ime (TV-som) tTXT/TV ( ote 5 ) - - 100 ns
14 2001-06-25
TOSHIBA
TA8867AN
TEST CONDTION
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
Input Clamping Level
(1)Connect a capacitor (0.01pF) between the luminance
input terminal (pin 6) and ground
(2) Measure the terminal voltage of the luminance input
terminal (pin 6). (VCLMP [V])
Brightness Control
Characteristic
VBRGHT
(1)Connect a capacitor (th01pF) between the luminance
input terminal (pin 6) and ground, and connect a
capacitor (0.01pF) between the chroma input terminal
(pin 19) and ground.
(2) Set the voltage of the brightness adjustment terminal
(pin 31) to 0V, 2.5V, and 5.0V. Then measure the voltage
of the B output terminal (pin 41) during the trace period
at each voltage level.
(VBRGHT M)
Dynamic Range of
Video Input
(1) Set the contrast adjustment terminal (pin 30) to 0V, and
set the brightness adjustment terminal (pin 31) to 1.5V.
(2) Connect a DC power supply to the luminance input
terminal (pin 6) and apply the same voltage as VCLMP-
(3) While measuring the output voltage of the B output
terminal (pin 41), increase the voltage of the DC power
supply connected to the luminance input terminal (pin 6).
(4) Measure the voltage of the DC power supply connected
to the luminance input terminal (pin 6) when the output
voltage of the B output terminal (pin 41) saturates.
(V [V])
(5) Dr6 [Vp-p]=V-VCLMP
Maximum Output
Voltage of RGB
Output
(1) Set the contrast adjustment terminal (pin 30) to 5.0V, and
set the brightness adjustment terminal (pin 31) to 5.0V.
(2) Connect a DC power supply to the luminance input
terminal (pin 6) and apply the same voltage as VCLMP-
(3) While measuring the output voltage of the B output
terminal (pin 41), raise the voltage of the DC power
supply connected to the luminance input terminal (pin 6).
(4) Measure the voltage of the DC power supply connected
to the luminance input terminal (pin 6) when the output
voltage of the B output terminal (pin 41) saturates.
(VOMAX [V])
Horizontal Blanking
(1)Connect a capacitor (0.01pF) between the luminance
input terminal (pin 6) and ground, and connect a
capacitor (0.01pF) between the chroma input terminal
(pin19) and ground.
(2) Measure the voltage of the B output terminal (pin 41)
during the Horizontal blanking period.
(VHBLK M)
15 2001-06-25
TOSHIBA
TA8867AN
NOTE CHARACTERISTIC SYMBOL MEASUREMENT METHOD
(1)Connect a capacitor (0.01pF) between the luminance
input terminal (pin 6) and ground, and connect a
Vertical Blanking capacitor (0.01pF) between the chroma input terminal
6 Level VVBLK (pin 19) and ground.
(2) Measure the voltage of the B output terminal (pin 41)
during the vertical blanking period.
(VVBLK [V])
(1)Connect a capacitor (0.01pF) between the luminance
input terminal (pin 6) and ground, and connect a
7 Vertical Blanking T capacitor (0.01pF) between the chroma input terminal
Period VBLK (pin19) and ground.
(2) Measure the vertical blanking period of the B output
terminal (pin 41)
(1)Connect a capacitor (0.01pF) between the chroma input
terminal (pin19) and ground.
(2) Set the sharpness adjustment terminal (pin 27) to 0V, and
set the brightness adjustment terminal (pin 31) to 1.5V.
8 Contrast Control G (3) Input a multi-burst signal to the luminance input terminal
Characteristic CONT (pin 6).
(4) Set the contrast adjustment terminal (pin 30) to 0V, 2.5V,
and 5V. Then measure the AC gain between the
luminance input terminal (pin 6) and B output terminal
(pin 41) at each voltage level. (GCONT [dB])
(1)Connect a capacitor (0.01pF) between the chroma input
terminal (pin19) and ground.
(2) Input a multi-burst signal to the luminance input terminal
(pin 6).
Frequency (3) Set the picture quality adjustment terminal (pin 27) to
9 Characteristic Gf 5.0V, the contrast adjustment terminal (pin 30) to 2.5V,
the brightness adjustment terminal (pin 31) to 1.5V, and
the aperture control terminal (pin 9) to 6.5V.
(4) Observe the output waveform of the B output terminal
(pin 41), and then measure the AC gain at 10MHz against
100kHz. (Gf [dB])
16 2001-06-25
TOSHIBA
TA8867AN
NOTE CHARACTERISTIC SYMBOL MEASUREMENT METHOD
(1) Set the color adjustment terminal (pin 29) to 0V, the
contrast adjustment terminal (pin 30) to 2.5V, and the
brightness adjustment terminal (pin 31) to 1.5V.
(2) Set the Sharpness adjustment terminal (pin 27) to 5.0V.
(3) Input a multi-burst signal to the luminance input terminal
(pin 6).
(4) Measure the signal amplitude of the B output terminal
10 Sharpness. Pntrol GSHRP (pin 41) at a frequency of 100kHz (V100k Np-pl) and at a
Characteristic
frequency of 4MHz (V4M Np-pl).
(5) GSHRP (Max.) [dBl=20hag V100k
(6) Set the sharpress adjustment terminal (pin 27) to 0V, and
measure same.
(7) GSHRP (Min.) [dB] - 208og V100k
(1) Set the picture quality adjustment terminal (pin 27) to
5.0V, the color adjustment terminal (pin 29) to 0V, the
contrast adjustment terminal (pin 30) to 2.5V, and the
brightness adjustment terminal (pin 31) to 1.5V.
(2) Set the aperture control terminal (pin 9) to 0V.
(3) Input a multi-burst signal into the luminance input
terminal (pin 6).
Delay Time Control (4) Measure the frequency (fm [MHz]) at which the minimum
11 Characteristics of tAC AC gain is gotten between the luminance input terminal
Aperture Circuit (pin 6) and the B output terminal (pin 41).
(5)tAc (Max.) [ps] = W
(6)Set the aperture control terminal (pin 9) to 5.0V, and
measure the frequency (fm [MHz]) at which the minimum
AC gain is gotten.
(7)tAc (Min.) [,us]=%
17 2001-06-25
TOSHIBA TA8867AN
NOTE CHARACTERISTIC SYMBOL MEASUREMENT METHOD
(1) Set the contrast adjustment terminal (pin 30) to 2.5V and
the brightness adjustment terminal (pin 31) to 1.5V.
(2) Measure the AC gain between the luminance input
terminal (pin 6) and the B output terminal (pin 41).
(G [times])
(3)Connect a capacitor (0.01pF) between the luminance
input terminal (pin 6) and ground.
(4)Connect an ammeter and DC power supply in series
Gain of DC Restore G between the APL filter terminal (pin 7) and the GND.
Amplitude DCA (5) Adjust the voltage of the DC power supply until the
ammeter reads is 0mA.
(6) Measure the voltage of the B output terminal (pin 41)
during the trace period. (V0 [V])
(7) Decrease the voltage of the DC power supply by 0.1V.
(8) Measure the voltage of the B output terminal (pin 41)
during the trace period. (V1 [V])
Vo - V1 x _1
0.1 M G
(1) Set the contrast adjustment terminal (pin 30) to 2.5V and
set the brightness adjustment terminal (pin 31) to 1.5V.
(2) Input a signal with a frequency of 500KHz and an
amplitude of 100mVp-p into the luminance input terminal
(pin 6).
Black Stretch (3) Measure the output amplitude of the B output terminal
13 Amplitude Maximum GExp (pin 41) during the trace period when the black peak
Gain detection terminal (pin 8) is set to 5.5V. No Np-pl)
(4) Measure the output amplitude of the B output terminal
(pin 41) during the trace period when the black peak
detection terminal (pin 8) is set to 6.5V. (V1 [Vp-p])
(5) GExp--WI,
(1) Set the sharpness adjustment terminal (pin 27) to 0V, the
color adjustment terminal (pin 29) to 0V, the contrast
adjustment terminal (pin 30) to 2.5V and the brightness
adjustment terminal (pin 31) to 1.5V.
(2) Set the YNR terminal (pin 26) to 0V.
(3) Input a signal with a frequency of 100KHz and an
Noise Reduction arhplitude of 30mVp-p into the luminance input terminal
14 Level GNR (pin 6).
(4) Measure the output amplitude of the B output terminal
(pin 41). (Vo [V])
(5) Set the YNR terminal (pin 26) to 5.0V.
(6) Measure the output amplitude of the B output terminal
(pin 41). (V1 M)
(7)GNR 'dm---:)),
(9) GDCA =
18 2001-06-25
TA8867AN
Chroma
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
ACC Characteristics
(1) Input a black burst signal (burst level of 100mUp-p) into
the chroma input terminal (pin 19).
(2) Measure the output amplitude of the B-Y output
terminal (pin 17).
(3) Reduce the burst level, then measure it when the output
amplitude of the B-Y output terminal (pin 17) becomes -
3dB less the original amplitude. (eACC (Min.) [dB])
(4) Increase the burst level, then measure it when the output
amplitude of the B-Y output terminal (pin17) becomes -
3dB plus the original amplitude. (eACC (Max.) [dB])
killer Operation
(1) Input a black burst signal (burst level of 100mVp-p) into
the chroma input terminal (pin19).
(2) Measure the voltage of the station ID terminal (pin 25).
(3) Reduce the burst level, then measure it when the voltage
of the station ID terminal (pin 25) becomes 2.5V.
(eK [mVp-p]
APC Control
Sensitivity
[D’APC
(1)Connect a capacitor (0.01pF) between the chroma input
terminal (pin19) and ground.
(2) Connect a 1kQ resistor between the killer filter terminal
(pin 18) and the GND.
(3) Connect a high-input-resistance buffer amp to the VCXO
terminal (pin 15), and a frequency counter to the buffer
amp output.
(4) Connect a DC power supply to the APC filter terminal
(pin 14). After applying 4.475V and 4.525V, read the
frequency each condition. (Let each reading be fL [MHz]
and fH [MHz].)
(5) /3Apc [kHz/V] = m
APC Control Range
(1) Connect a DC power supply to the APC filter terminal
(pin 14).
(2) Set the voltage of the DC power supply to 4.5V, then
measure the VCXO oscillation frequency using a small-
capacity probe, such as an FET probe, attached to the
VCXO terminal (pin 15). (f0 [Hz])
(3) Set the voltage of the DC power supply to 4.0V and
5.0V, then measure VCXO oscillation frequency in the
same way. (fL [Hz], fH [Hz])
(4) chpc [Hz] =fL -fo or ‘chpc [Hz] =fH -fo
19 2001-06-25
TOSHIBA
TA8867AN
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
Color Differential
Signal Output Level
(1) Input a rainbow color-bar signal (burst level of 100mVp-p,
burst chroma ratio of 1 : 1) into the choma input
terminal (pin 19).
(2) Measure the output signal amplitudes of the R-Y output
terminal (pin 16) and the B-Y output terminal (pin 17).
(eCHRM Np-pl)
Color Differential
Signal Output Level
(NTSC)
(1) Input a rainbow color-bar signal (burst level of 100mVp-p,
burst chroma ratio of 1 : I) into the chroma input
terminal (pin19).
(2) Apply 2.5V to the tint adjustment terminal (pin 28).
(3) Measure the output signal amplitudes of the R-Y output
terminal (pin16) and the B-Y output terminal (pin17).
(eCHRM Np-pl)
Relative Amplitude
(1) Input a rainbow color-bar signal (burst level of 100mVp-p,
burst chroma ratio of 1 : I) into the chroma input
terminal (pin19).
(2) Measure the output signal amplitudes of the R output
terminal (pin 37) and the B output terminal (pin 41)
during the trace period. (Let these amplitudes be VR-Y
Np-pl and VB-Y Np-pl, respectively.)
(4) To take measurements with the NTSC system, apply 2.5V
to the tint adjustment terminal (pin 28).
(3)eR/eB=
Relative Phase (R-Y)
(1) Input a rainbow color-bar signal (burst level of 100mVp-p,
burst chroma ratio of 1 : I) into the chroma input
terminal (pin19).
(2) Measure the relative phases of the output waveforms of
the R output terminal (pin 37) and the B output terminal
(pin 41) with respect to their peak positions.
Relative Amplitude
Applying the same method used to measure the relative R-Y
amplitude, obtain the amplitude ratio of the G output
terminal (pin 39) and the B output terminal (pin 41) during
the trace period.
Relative Phase (G-Y)
Applying the same method used to measure the relative G-Y
phase, measure the relative phases from the output
waveforms of the G output terminal (pin 39) and the B
output terminal (pin41).
20 2001-06-25
TOSHIBA
TA8867AN
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
1H DL Gain
Adjustment Range
(1) Input a black burst signal (burst level of 100mVp-p) into
the chroma input terminal (pin 19) and the 1H delay line
input terminal (pin 21).
(2) Connect an attenuator and phase shift circuit between
the 1H delay line input terminal (pin 21) and the signal
source.
(3) Adjust the phase shift of burst signal to 90° using the
phase shift circuit.
(4) While observing the voltage of the 1H delay line
adjustment terminal (pin 23), reduce the signal amplitude
applied to the 1H delay line input terminal (pin 21) using
the attenuator.
(5) Read the attenuator value when the voltage of the 1H
delay line input terminal (pin 23) is 4.0V and let it be A
[dB]. In the same way, read the attenuator value when
the voltage is 5.0V and let it be B [dB].
(6) DLAMp (Min.) [dB]=A+18 ; DLAMP (Max.) [dB]=B+18
1H DL Phase
Adjustment Range
(1) Input a black burst signal (burst level of 100mVp-p) into
the chroma input terminal (pin19) and the 1H delay line
input terminal (pin 21).
(2) Connect an attenuator and a phase shifter between the
1H delay line input terminal (pin 21) and the signal
source.
(3) Adjust the phase shift of burst signal to 90° using the
phase shift circuit. Then set the attenuator to -18dB.
(4) While observing the voltage of the 1H delay line
adjustment terminal (pin 22), change the signal phase
applied to the 1H delay line input terminal (pin21) by
using the phase shifter.
(5) Measure a phase shift when the voltage of the 1H delay
line adjustment terminal (pin 22) is 4.0V and let it be
DLPHS (Min). Using the same method, measure the phase
shift when the voltage is 5.0V and let it be DLpHs
(Max.).
21 2001-06-25
TOSHIBA
TA8867AN
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
Color Control
Characteristics
GCOLOR
(1) Set the sharpness adjustment terminal (pin 27) to 0V, the
contrast adjustment terminal (pin 30) to 2.5V, and the
brightness adjustment terminal (pin 31) to 1.5V.
(2) Input a rainbow color-bar signal (burst level of 100mVp-p,
burst chroma ratio of 1 : I) to the chroma input terminal
(pin 19).
(3) Set the voltage of the color adjustment terminal (pin 29)
to 0V, 2.5V, and 5V. Then measure the output signal
amplitude VB-Y Np-pl of the B-Y output terminal (pin 17)
and the signal amplitude VB [Vp-p]) of the B output
terminal (pin 41) during the trace period at each voltage
level.
(4) GCOLOR [dB] = 208og VB?Y
Tint Control
Characteristics
frrmrr
(1) Input a rainbow color-bar signal (burst level of 100mVp-p,
burst chroma ratio of 1 : 1) to the chroma input terminal
(pin 19).
(2) Set the voltage of the tint adjustment terminal (pin 28)
to 1.1V. Then observe the output waveform of the B
output terminal (pin 41).
(3) Change the burst phase of the signal generator so that
the 6th signal of the output waveform reaches its
maximum. Then measure the burst phase when this
maximum is reached. (‘6TINT [°])
(4) Change the voltage of the tint adjustment terminal
(pin 28) to 3.9V. Then measure it.
PAL / NTSC Select
Threshold Voltage
(1) Observe the output waveform of the R-Y output terminal
(pin 16).
(2) Raise the voltage of the tint adjustment terminal (pin 28)
up from 0V. Then measure the voltage of the tint
adjustment terminal (pin 28) when the color difference
signal modulation mode is switched from PAL to NTSC.
(Vp/ N [V])
22 2001-06-25
TOSHIBA TA8867AN
Sync. processing
NOTE CHARACTERISTIC SYMBOL MEASUREMENT METHOD
(1)Connect an ammeter and DC power supply in series
between the sync. input terminal (pin 5) and the GND.
(2) Observe the output pulse of the VP output terminal
(pin 46).
(3)While lowering the voltage of the DC power supply
beginning with 3.0V, measure the value of the ammeter
when the output pulse period of the VP output terminal
(pin 46) changes from 353H to 261.5H. (IINS [PA])
(1)Connect a Ikn resistor and a DC voltmeter in series
between the H. AFC filter 1 terminal (pin 2) and GND.
(2) Input a composite sync. signal into the sync. separation
input terminal (pin 5). Then observe the waveform of the
H. AFC filter 1 terminal (pin 2).
31 1,ttFctcio',',hCirent 'HDet (3) Adjust the.voltaqe of the DC power supply so that the
waveform IS vertically symmetrical.
(4) Measure the zero-peak value of the waveform.
(VIDet [mvn
(5) IHDet [PA] = If-pit,-
Sync. Separation
30 Current Sensitivity
(1) Input a composite signal into the sync. separation input
terminal (pin 5).
(2)Apply 5.0V to the YNR terminal (pin 26) through a 10kf)
Ts register.
(3)While observing the waveform of the YNR terminal
(pin 26), measure the period when the pulse is inactive.
(Ts (H))
(1) Input a composite signal into the sync. separation input
terminal (pin 5).
(2) Observe the waveform of the flyback pulse input
terminal (pin 45).
(3)While increasing the storage time from 0. Measure the
strage time until H. AFC goes to be lock. (AFCON [ps])
Phase Detector
32 Inactive Period
2nd AFC Active
33 . AFCON i-l c,
Period Waveform on pin 45
Waveform on pin M
23 2001-06-25
TOSHIBA
TA8867AN
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
2nd AFC Control
AFCWid
(1) Input a composite sync. signal into the sync. input
terminal (pin 5).
(2) Observe the waveform of the flyback pulse input
terminal (pin 45).
(3) Make sure that the storage time is equal to AFCON.
(4) While increasing the strage time. Then measure the
strorage time until H. AFC goes to be un-Iock.
(AFCWid MAD
Waveform on pin 45 I I
_.' p-
Waveform on pin 44
AFCWid I
Supply Voltage for
32fH VCO in Active
(1) Leave the V/C VCC terminal (pin 12) open.
(2)Connect a high-input-resistance probe between the
ceramic resonator and resistor, which are connected in
series between the 32fH VCO terminal (pin 1) and the
GND. Then observe the waveform.
(3) Increase the voltage of Def. VCC up from 0V, and
measure the Def. VCC voltage when the 32fH VCO starts
oscillating. (VVCO [V])
Supply Voltage for
Horizontal Output in
Active
(1) Leave the V/C VCC terminal (pin12) open.
(2) Observe the output waveform of the horizontal output
terminal (pin 44).
(3) Increase the voltage of Def. VCC up from 0V, and
measure the Def. VCC voltage when the horizontal
output begins. (VHON [V])
Horizontal OSC
Free-run Frequency
(1)Connect a capacitor (0.01pF) between the sync. input
terminal (pin 5) and ground.
(2) Measure the frequency of the output waveform of the
horizontal output terminal (pin 44). “HO [kHz])
24 2001-06-25
TOSHIBA TA8867AN
NOTE CHARACTERISTIC SYMBOL MEASUREMENT METHOD
(1) Increase the horizontal frequency of the composite sync.
signal that is input from the sync. input terminal (pin 5)
beginning with 14.625kHz.
(2)While observing the waveform of the flyback pulse input
terminal (pin 45), measure the horizontal frequency until
H. AFC goes to be lock. (fPLLOW [kHz])
38 Horizontal OSC Pull- PLAFC (3) Decrease the horizontal frequency of the composite sync.
in Range signal that is input from the sync. input terminal (pin 5)
beginning with 16.625kHz.
(4)While observing the waveform of the flyback pulse input
terminal (pin 45), measure the horizontal frequency until
H. AFC goes to be lock. (fPLHIGH [kHz])
(5) PRAFC [kHz] --fpLLovv- 15.625 [kHz] or
PRAFC [kHz] =fPRHIGH - 15.625 [kHz]
(1) Decrease the horizontal frequency of the composite sync.
signal that is input from the sync. input terminal (pin 5)
beginning with 15.625kHz.
(2)While observing the waveform of the flyback pulse input
terminal (pin 45), measure the horizontal frequency until
. H. AFC goes to be un-lock. (fLRLOW [kHz])
39 Horizontal OSC Hold LRAFC (3) Increase the horizontal frequency of the composite sync.
Range signal that is input from the sync. input terminal (pin 5)
beginning with 15.625kHz.
(4)While observing the waveform of the flyback pulse input
terminal (pin 45), measure the horizontal frequency until
H. AFC goes to be un-Iock. (fLRHIGH [kHz])
(5) PLAFC [kHz] =fLRLOW- 15.625 [kHz] or
PLAFC [kHz] =fLRHitsH - 15.625 [kHz]
(1)Connect a capacitor (0.01pF) between the sync. input
terminal (pin 5) and ground.
(2) Connect a DC power supply to the H. AFC filter terminal
(pin 2).
(3) Measure the frequency of the horizontal output terminal
(pin 44), then adjust the voltage of the DC power supply
so that the measured frequency is 15.625kHz and the
40 AFC Control BAFC voltage is vo [V].
Sensitivity (4) Measure the frequency of the horizontal output terminal
(pin 44) when the voltage of the H. AFC filter terminal
(pin 2) is set to vo + 50 [mV]. (fHIGH [H2])
(5) Measure the frequency of the horizontal output terminal
(pin 44) when the voltage of the H. AFC filter terminal
(pin 2) is set to vo - 50 [mV]. (fLOW [H2])
fHIGH -fLow
25 2001-06-25
TOSHIBA
TA8867AN
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
Horizontal Pulse
Measure the pulse duty cycle from the output waveform of
the horizontal output terminal (pin 44). (TDUT [%])
Horizontal Pulse
Measure the high-level and low-level voltages of the output
waveform of the horizontal output terminal (pin 44).
(VHL [V] ; VHH M)
X-RAY Protection
Threshold Voltage
(1) Connect DC power supply to the X-RAY protection input
terminal (pin 43).
(2)While increase the voltage of the DC power supply,
measure the DC voltage when the horizontal pulse from
the horizontal output terminal (pin 44) stops. (VXON [V])
X-RAY Protection
Hold Voltage
(1)Apply 5.0V to the X-RAY protection input terminal (pin
43), then stop this voltage application after operating the
X-RAY protection circuit.
(2) Decrease the Def. VCC voltage, then increase it back to
(3) Measure the voltage where the horizontal pulse remains
idle even after the Def. VCC voltage is returned to 9.0V.
(VXHLDIVD
Vertical Pulse Width
While observing the output waveform of the VP output
terminal (pin 46), measure the Iow-level period. (Tvp [H])
Vertical OSC PuII-in
(1) Input a composite sync. signal into the sync. input
terminal (pin 5).
(2)While changing the vertical sync. period by 0.5H step,
measure the vertical period immediately before the
voltage of the station ID terminal (pin 25) decreases to
0V.(PLV [H])
(3)When taking this measurement in the 50Hz mode, set
the terminal voltage of the 1H delay line input terminal
(pin 21) to 6.0V. When taking a measurement in the 60Hz
mode, set the terminal voltage to 3.0V.
Vertical OSC Free-
run Frequency
(1)Connect a capacitor (0.01pF) between the sync. input
terminal (pin 5) and ground.
(2)While observing the output waveform of the VP output
terminal (pin 46), measure the vertical free-run oscillation
cycle. (TVO [H])
(3)When taking this measurement in the 50Hz mode, set
the terminal voltage of the 1H delay line input terminal
(pin 21) to 6.0V. When taking a measurement in the 60Hz
mode, set the terminal voltage to 3.0V.
26 2001-06-25
TOSHIBA
TA8867AN
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
Vertical OSC Pull-in
Range Select Voltage
(1) Input a composite sync. signal with a vertical frequency
of 60Hz from the sync. input terminal (pin 5).
(2)Connect a DC power supply to the 1H delay line input
terminal (pin 21).
Then increase the terminal voltage beginning with 4.5V.
(3)While measuring the terminal voltage of the station ID
terminal (pin 25), measure the terminal voltage of the 1H
delay line input terminal (pin 21) when the station ID
terminal voltage decreases to 0V. (VSWSO [V])
(4)Connect a capacitor (0.01pF) between the sync. input
terminal (pin 5) and ground.
(5)Connect a DC power supply to the 1H delay line input
terminal (pin 21). Then decrease the terminal voltage
beginning with 4.5V.
(6) While measuring the VP pulse period that is output from
the VP output terminal (pin 46), measure the terminal
voltage of the 1H delay line input terminal (pin 21) when
the pulse period changes from 353H to 261.5H.
(szeo [H])
Vertical Frequency
Identification
Voltage
(1) Input a composite sync. signal with a vertical frequency
of 50Hz from the sync. input terminal (pin 5).
(2) Measure the terminal voltage of the 1H delay line output
terminal (pin 24). (VIDSO [V])
(3) Input a composite sync. signal with a vertical frequency
of 60Hz from the sync. input terminal (pin 5).
(4) Measure the terminal voltage of the 1H delay line output
terminal (pin 24). (VID60 [V])
27 2001-06-25
TOSHIBA
Linear RGB Processing
TA8867AN
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
RGB Input Dynamic
(1) Set the contrast adjustment terminal (pin 30) to 2.5V, the
brightness adjustment terminal (pin 31) to 1.5V, and the
Ys terminal (pin 35) to 2.0V.
(2) Measure the terminal voltage of the R input terminal
(pin 32) using a high-input-resistance voltmeter.
(VCLMP NI)
(3) Connect a DC power supply to the R input terminal (pin
32). Then apply the same voltage as VCLMp.
(4)While measuring the output voltage of the R output
terminal (pin 37), increase the voltage of the DC power
supply that is connected to the R input terminal (pin 32).
(5) Measure the voltage of the DC power supply connected
to the R input terminal (pin 32) when the output voltage
of the R input terminal (pin 37) becomes constant and
remains so even when you increase the voltage of the DC
power supply. (V [V])
DrRGB [Vp-p]=V-VCLMP
(6) Take the same measurement for the G input terminal
(pin 33) and B input terminal (pin 34).
Gain (RGB
lnput-oRGB Output)
(1) Set the contrast adjustment terminal (pin 30) to 5.0V, the
brightness adjustment terminal (pin 31) to 1.5V, and the
Ys terminal (pin 35) to 2.0V.
(2) Input to the B input terminal (pin 34) a square wave with
a 200mV amplitude and a 50% duty cycle that is
synchronized to the horizontal sync. signal. (This square
wave must be such that the horizontal sync. pulse is at
the center of its Iow-level width.)
(3) Measure the amplitude of the B output terminal (pin 41).
No [mV])
(4) GIO [dB] = 20eog22,
Contrast Control
Limiting Level
GLIMIT
(1) Set the contrast adjustment terminal (pin 30) to 5.0V, the
brightness adjustment terminal (pin 31) to 1.5V, and the
Ys terminal (pin 35) to 2.0V.
(2) Input a signal with a 0.5Vp-p amplitude into the B input
terminal (pin 34) and measure the output amplitude of
the B output terminal (pin 41). (V0 [Vp-p])
(3) Set the contrast adjustment terminal (pin 30) to 0V, and
set the Ys terminal (pin 35) to 9.0V.
(4) Input a signal with a 0.5Vp-p amplitude into the B input
terminal (pin 34) and measure the output amplitude of
the B output terminal (pin 41). (V1 Np-pl)
5 G dB =208 -
( ) LIMIT [ i og Vo
28 2001-06-25
TOSHIBA
TA8867AN
CHARACTERISTIC
SYM BOL
MEASUREMENT METHOD
Switching Threshold
Voltage
VTV / TXT
VTX / OSD
(1) Set the contrast adjustment terminal (pin 30) to 5.0V, the
brightness adjustment terminal (pin 31) to 1.5V, and the
Ys terminal (pin 35) to 0V.
(2) Input a signal (any signal) from the B input terminal (pin
(3) Input a signal (any signal) from the luminance input
terminal (pin 6).
(4) Connect a DC power supply to the Ys terminal (pin 35).
(5) While observing the output waveform of the B output
terminal (pin 41), increase the voltage of the DC power
supply.
(6) Measure the voltage of the Ys terminal (pin 35) when the
output waveform of the B output terminal (pin 41) is
switched from the signal of the luminance input terminal
(pin 6) to that of the B input terminal (pin 34).
(VTV/TX [V])
(7) Set the contrast adjustment terminal (pin 30) to 0V.
(8) While observing the output waveform of the B output
terminal (pin 41), increase the voltage of the DC power
supply.
(9) Measure the voltage of the Ys terminal (pin 35) when the
output waveform of the B output terminal (pin 41) has a
large amplitude. (VTV/OSC [V])
Switching Time
(TV-SRG B)
(TXT-aTV)
tTV / TXT
tTXT / TV
(1) Set the contrast adjustment terminal (pin 30) to 5.0V, and
set the brightness adjustment terminal (pin 31) to 1.5V.
(2)Connect a capacitor (0.01pF) between the luminance
input terminal (pin 6) and ground, and connect a
capacitor (0.01pF) between the chroma input terminal
(pin 19) and ground.
(3) Input the test signal (A) into the B input terminal (pin
(4) Input the test signal (A) into the Ys terminal (pin 35).
(5)While observing the output waveform of the B output
terminal (pin 41), measure the switching time.
29 2001-06-25
TOSHIBA TA8867AN
INPUT SIGNAL FOR MEASUREMENT OF OSD PERFORMANCE
l 20pe; 20/15 l
20/15 20ps
50% -P-.-_._.-.-.__.-.-. P'' .-.- ------ - 'i] __.-.-.-.-.-.--.-.-.-.-
tTV/TXT
30 2001-06-25
APPLICATION EXAMPLE CIRCUIT
Def Vcc (9‘!)
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'IWPI 09/05
“31 Iyths 09 IDS
5.5m 1,1;
3 ' VP Output
0.022yF v out
C.V.B.S Input F.B.P. Input
32!“ vco H. Output
Sync. Sepa
X-RAV Protection
Pedestal
Def GND
Buyxuwla
ssauqus
Black Stretch,
DC Res. Rat.
MATRIX
LInear RGB CRT Driver
Interface
wc vcc (9V)
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Linear RGB Input
Chroma
Killer
3° 0.1
htness)
ACC Amp.
(Contrast)
(Color)
(Color) (“)
(Sharpness)
azon 18pF
wc GND
Blanking
Switch
50 ISO Switch
Control Voltage
Sharpness
(n) The relative error between these VNR
resistors must be less than 1%.
(n, Pin 28 is connected to GND in PAL
DL Amp. Coincidence defector/wlor killer
Coincidence de‘ector
50/60 Idem.
TA8867AN - 31
TOSHIBA
TA8867AN
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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.
33 2001-06-25
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