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TDA9102CSTN/a980avaiH/V PROCESSOR FOR TTL V.D.U


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TDA9102C
H/V PROCESSOR FOR TTL V.D.U
TDA9102C
H/V PROCESSOR FOR TTL V .D.U
May 1996
POWERDIP20 (0.4)

(Plastic package)
ORDER CODES
: TDA9102C
HORIZONTAL SECTION
. SYNCHRONIZATION INPUT: TTL COMPAT-
IBLE, NEGATIVE EDGE TRIGGERED. SYNCHRONIZATION INDEPENDENT FROM
DUTY CYCLE TIME. OSCILLATOR: FREQUENCY RANGE FROM
15kHzto 100kHz. HORIZONTAL OUTPUT PULSE SHAPER
AND SHIFTER. PHASE COMPARATOR BETWEEN SYN-
CHRO AND OSCILLATOR(PLL1). PHASE COMPARATOR BETWEEN FLYBACK
AND OSCILLATOR (PLL2). INTERNAL VOLTAGE REGULATOR. DC COMPATIBLE CONTROLS FOR PHASE
AND FREQUENCY. HORIZONTAL OUTPUT DUTY CYCLE: 41%
VERTICAL SECTION
. SYNCHRONIZATION INPUT: TTL COMPAT-
IBLE, NEGATIVE EDGE TRIGGERED. SYNCHRONIZATION INDEPENDENT FROM
DUTY CYCLE TIME. OSCILLATOR: FREQUENCY RANGE FROM
30Hzto 120Hz. RAMP GENERATOR WITH VARIABLE GAIN
STAGE. VERTICAL RAMP VOLTAGEREFERENCE. INTERNAL VOLTAGE REGULATOR. DC COMPATIBLE CONTROLS FOR FRE-
QUENCY, AMPLITUDE AND LINEARITY
DESCRIPTION

The TDA9102Cisa monolithicintegrated circuitfor
horizontal and vertical sync processingin mono-
chrome and color video displays drivenby input
TTL compatible signals.
The TDA9102Cis suppliedina20 pin dualin line
package with pin 11connectedto ground andused
for heatsinking.
Horizontal Phase Adjust
PhaseComparator 2Output
Horizontal FlybackInput
Horizontal Output
Horizontal Power Ground
HorizontalTTLInput
PhaseComparator 1Output
Substrate Ground
Vertical FrequencyPreset
C13
VerticalTTLInput
Vertical RampOutput
VerticalAmplitudeAdjust
Vertical LinearityAdjust
Linearity Output
VerticalReference VoltageS
9102001.EPS
PIN CONNECTIONS

1/7
13 12HORIZONTAL
FLYBACK
INPUT
VERTICAL
SYNC.INPUT
VERTICAL
LINEARITYADJUSTEMENT
FREQUENCY
PRESET
VERTICAL
AMPLITUDEADJUSTEMENT
FREQUENCY
ADJUSTEMENT
HORIZONTAL
PHASEADJUSTEMENT
HORIZONTALSYNC.INPUT
REF
TDA9102C
VOLTAGE
REGULATOR
VERTICAL
OSCILLATOR
PHASE
COMPARATOR
VERTICAL
TTL
INTERFACE
LOW
SUPPLY
VOLTAGE
PROTECTIONHORIZONTAL
OSCILLATOR
PHASE
COMPARATOR
HORIZONTAL
TTL
INTERFACE
HOR.
PULSE
SHAPER C3
R12
R18
C18
C13
R14
91020S2.EPS
BLOCK DIAGRAM
TDA9102C

2/7
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Supply Voltage 18 V
VSYNC Sync Input Peak Voltage +VS V
IOH Output Sinking Peak Current (Pin7;t< 3μs) 2 A
I15 Output Current (Pin15) -10 mA
I19 Output Current (Pin19) -10 mA
PTOT Total power dissipation Tamb <70oC Tpin <90oC
TSTG ,TJ Storage and Junction Temperature -40to 150 oC
9102001.TBL
THERMAL DATA
Symbol Parameter Value Unit

RTH(J-C) Junction-case Thermal Resistance 40 o C/W
RTH(J-A) Junction-ambient Thermal Resistance 55 o C/W
9102002.TBL
ELECTRICAL CHARACTERISTICS

(TAMB =25oC,VS= 12V, referto the test circuits, unless otherwisespecified)
Symbol Parameter Test conditions Min. Typ. Max. Unit

HORIZONTAL SECTION Supply Voltage Range 10.5 12 15.5 V Supply Current 40 70 mA Voltage Referenceat Pin1 I1= 0.5mA 3.2 3.5 3.8 V Currentat Pin1 -1 mA Voltage Swingat Pin2 3.7 4 4.3 VPP Free Running Frequency Constant fo= 1/(K0xR1x C2) 2.8 3.04 3.2
V3 -V1 Control Voltage Range (See technical note1) 1.6 2.5 V
I3 Peak Control Current 3 mA Gain Phase Comparatorφ1 =2xI3/ 360 μA
degree Sync Threshold Input (neg. edge) l Sync high Sync low
0.8 Currentat Pin4 l Input high Input low -10 μA Input Pulse DurationT= 1/fH @fH= 27.64kHz 1 0.9T μs Monostable Threshold 5.6 6 6.4 V Internal Pulse Width(t5 =C5xV5/I5) C5= 220pF
(see technical note2)
3.6 μs Output Pulse Duration (low)-T= 1/fH fH= 27kHz= 70kHz
0.38T
0.35T
0.41T
0.39T
0.44T
0.43Tsat Output Saturation Voltage I7= 600 mA 1.2 2.5 V Permissible delay between output pulse
leading edge and flyback pulse leading edge
(for keepinga constant duty cycle);T=1
See technical note4
@fH= 27kHz
0.41T-tFLY s
IFLY Flyback Input Currentat Pin8 l FlybackOn FlybackOff
2mA Clamp voltageat Pin8 l I8= 1mAI8=- 1mA
0.6 0.6 Currentfor switching low the output pulse 0.7 2 mA
I9 Peak control current 0.9 mA
9102003.TBL
TDA9102C

3/7
ELECTRICAL CHARACTERISTICS (continued)
(TAMB =25oC, VS= 12V, referto the test circuits, unless otherwise specified)
Symbol Parameter Test conditions Min. Typ. Max. Unit

HORIZONTAL SECTION Phase sensitivityat Pin9 (See technical note3) 67.5 degree
V10 Control voltage range 0.5 4.5 V
K10 Phase control sensitivity atPin10 20 22.5 25 degree
HADJ Horizontal phase adjustmentfor V10 varying
from 0.5to 4.5V (27.64kHz)
Zero degree phase: flyback
centeredon the middleofthe
pulseat Pin545 +45 degree Phase jitterconstant (jitter= K16.fH) 100 150 ppm Frequency drift versus supply voltage=dF .106.fH= 10.5Vto 15.5V 400 ppm
VERTICAL SECTION
V12 Voltage referenceat Pin12 3.2 3.5 3.8 V
I13
I12
Current gainat Pin13 I12= 100μA
(I12 max.= 200μA)
0.94 1 1.06
V13 Typical VerticalSawtooth Amplitude
(Pin 13)for Center Frequencybe adjustedbyI12 4VPP
tFALL Discharge timeat Pin13 C18= 0.22 μF, V13 =4VPP 10 22 μs
fVL Maximum Vertical Frequency Vertical Sync Low
CPin13= 220nF, RPin12= 58kΩ Hz
fVH Minimum Vertical Frequency Vertical Sync High
CPin13= 220nF, RPin12= 58kΩ Hz
K14 Synchro window constantts= K14 (See technical note6) 0.333
V14 Sync input threshold (negative edge) l Sync high Sync Low
I14 CurrentatPin14 l Input high Input Low V14= 0.8V -10 μA
t14 Input pulse durationT=1 @fV= 64.75Hz 10 0.5T μs
V15 Average valueof voltageon Pin15 V13 =4VPP,V16= 2.5V 4 V
II15I Output currentatPin15 1 mA
K15 Buffer gain constantat Pin15
V15PP= K15 .V13PP
V16= 2.5V 0.95
K16 Buffer variable gain constantat Pin15:
K16= ΔV15PP
ΔV16 .V13PP
2.5V< V16< 4.5V
0.5V< V16< 2.5V
I16 Input bias currentat Pin16 V16 =0.5V -50 μA
I17 Input bias currentat Pin17 V17 =4.5V 50 μA
V18 Average voltageat Pin18: V18=2+ V18PP V17= 3.5V, R18 not connected 3 V
K18 Linearity correction constant: K18= ΔV18PP
ΔV17 V13PP= 4V,1.5V< V17< 4.5V 1
V19 Voltage referenceat Pin19 (See technical note5) 7.6 8 8.4 V
I19 CurrentatPin19 2mA
9102004.TBL
TDA9102C

4/7
ELECTRICAL CHARACTERISTICS (continued)
(TAMB =25oC,VS= 12V, referto the test circuits, unless otherwise specified)
Symbol Parameter Test conditions Min. Typ. Max. Unit

VERTICAL SECTION
K17 Frequency drift versus supply voltage K17=dF.106.fV VS= 10.5Vto 15.5V 300 ppm
9102005.TBL2
HOR. SYNC.ϕ1HORIZONTAL
OSCILLATOR
V3L
V3H V3H VDC
VDCV3L
9102003.EPS(V)(s)= 5.2V 6.8VVH
=6VV
=2VVLL
1/fv
9102004.EPS
Technical note1
(nom)= 26.8 kHz= 6.8kΩ= 56 kΩ= 1.8nF
fpull-in =fH (nom)V3−V1 /R2 /R1 =fH (nom)If (A)
where: V1= 3.5V and V3 -V1is the control
voltage range.
The voltageat Pin3is limited by two clamping
diodesat the voltage V3H and V3L
When the PLL1is synchronized and perfectly
tuned,V3 =V1.
Remark:
The valueof C2 influences the horizontal
oscillator free running frequency;it doesn’t effect
the relative pull-in range.If the horizontal fre-
quencyis changedby using R1, the pull-in range
changes accordingly with the formula (A).
Technical note2

The internal pulse ”t5”,is generatedby the current
generator ”I5” charging the external capacitor
”C5”, according with the formula(B):= C5. V5 (B),t5=TH is recommended.
Technical note3
= 67.5 degrees/volt represents the slopeof the
oscillator charging periodof the waveformat
Pin2:= 360x 0.75
degree
Technical note4

The second PLL can recover the storageof hori-
zontal output stage maintaininga constant duty
cycletill the trailing edgeof the output pulse gets
the trailing edgeof the flyback pulse. From this
point on, only the leading edgeof the output pulse
willbe shifted coveringa total phaseshiftof: 0.30T;
overcoming this value,it will producea notchin the
output pulse (@fH= 27kHz).
Technical note5

The voltage referenceat Pin 19 can be usedto
polarize the DC operating pointof the vertical
booster.This voltage correspondsto the doubleof
the mean value voltageof the vertical sawtoothat
Pin 13.
Technical note6
− VL = VH− VLL
1/fV= (VH− VL)
(VH− VLL)= K14
TDA9102C

5/7
89 1518Hor.
Sync.
Vert.
Sync.
Fly.
Input
TDA81

Hor.
Out
Vert.Yoke 14V
R10
22k100nF100
R1122k
R12
10k
C151
R20
150k
R2162k
R22220k
C16
220nF
C171.8n
C1815nF
C19
R23
3.3k
R24
56k
R25
6.8k47k
47k
C20
22nF
R27
100k
C21
0.22nF
R292.2k
R282.2k
3.3k
3.3k
51k
47k
22k
47k
39k15nF15nF15nF
39k
47k100nF
100nF10001N4001
C10220
C14
R18
1.2k
R17
2.7k
C13
R15
1.5k
R14
R13120
C12
220nF
C112200
R16
”C”
orrection
IC3ND
IC1
5.1k
5.1k
R26
22k
47k
Note
The
value
R19
depends
CRT.
the
moc
R19
substitued
with
resistance
trimmer
for
generic
applications.
Hor.
Power
GND
TDA9102C

IC2
9102005.EPS
APPLICATION DIAGRAM
(with TDA8172)
TDA9102C

6/7
ic,good price


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