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Part: TDA9102T
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TDA9102C/T
H/V PROCESSOR FOR TTL V.D.U
. . . . . . . . . . . . . . . .
HORIZONTAL SECTION SYNCHRONIZATION INPUT : TTL COMPATIBLE, NEGATIVE EDGE TRIGGERED SYNCHRONIZATION INDEPENDENT FROM DUTY CYCLE TIME OSCILLATOR : FREQUENCY RANGE FROM 15kHz to 100kHz HORIZONTAL OUTPUT PULSE SHAPER AND SHIFTER PHASE COMPARATOR BETWEEN SYNCHRO 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%
DIP20 (0.25) (Plastic package) ORDER CODES : TDA9102C/T
VERTICAL SECTION SYNCHRONIZATION INPUT : TTL COMPATIBLE, NEGATIVE EDGE TRIGGERED SYNCHRONIZATION INDEPENDENT FROM DUTY CYCLE TIME OSCILLATOR : FREQUENCY RANGE FROM 30Hz to 120Hz RAMP GENERATOR WITH VARIABLE GAIN STAGE VERTICAL RAMP VOLTAGE REFERENCE INTERNAL VOLTAGE REGULATOR DC COMPATIBLE CONTROLS FOR FREQUENCY, AMPLITUDE AND LINEARITY PIN CONNECTIONS
Substrate Ground
11
10
Horizontal Phase Adjust
Vertical Frequency Preset
12
9
Phase Comparator 2 Output
C13
13
8
Horizontal Flyback Input
Vertical TTL Input
14
7
Horizontal Output
Vertical Ramp Output
15
6
Horizontal Power Ground
Vertical Amplitude Adjust
16
5
C5
Vertical Linearity Adjust
17
4
Horizontal TTL Input
DESCRIPTION The TDA9102C/T is a monolithic integrated circuit for horizontal and vertical sync processing in monochrome and color video displays driven by input TTL compatible signals. The TDA9102C/T is supplied in a 20 pin dual in line package with pin 11 connected to ground and used for heatsinking.
May 1994
Linearity Output
18
3
Phase Comparator 1 Output
Vertical Reference Voltage V S
19
2
C2
20
1
R1
1/7
9102T-01.EPS
2/7
DC FREQUENCY ADJUSTEMENT VS
R3 C1 C3 R2 C2 R1
10 3 1 2 20 11 PHASE COMPARATOR 1 VOLTAGE REGU LATO R 19 VREF HO RIZO NTAL OSCILLATO R HO RIZO NTAL TTL INTERFACE LO W SUPPLY VOLTAGE PRO TECTION 15
TDA9102C/T
BLOCK DIAGRAM
DC HORIZONTAL PHASE ADJUSTEMENT
TDA9 102 C/T
+ 5V
R4
HORIZONTAL SYNC. INPUT
4
DC VERTICAL
16 AMPLITUDE
ADJUSTEMENT
VERTICAL TTL INTERFACE VERTICAL O SCILLATO R 13
5
C5
VS
C1 3
12 HOR. PULSE SHAPER 2 PHASE CO MPARATO R
DC FREQUENCY PRESET
R 18 R12
7
C 18
6 9 8 14 17 18
+ 5V
C9 R8 R 14
DC VERTICAL LINEARITY ADJUSTEMENT HORIZONTAL FLYBACK INPUT VERTICAL SYNC. INPUT
9102T-02.EPS
TDA9102C/T
ABSOLUTE MAXIMUM RATINGS
Symbol VS VSYNC IOH I15 I19 Ptot Tstg , Tj Supply Voltage Sync Input Peak Voltage Output Sinking Peak Current (Pin 7 ; t < 3µs) Output Current (Pin 15) Output Current (Pin 19) Total power dissipation (Tamb < 70 C) Storage and Junction Temperature
o
Parameter
Value 18 + VS 2 - 10 - 10 1 - 40, + 150
Unit V V A mA W
o
9102T-01.TBL
mA C
THERMAL DATA
Symbol Rth(j-a) Parameter Junction-ambient Thermal Resistance Value 80 Unit
o
C/W
ELECTRICAL CHARACTERISTICS (Tamb = 25oC, VS = 12V, refer to the test circuits, unless otherwise specified)
Symbol HORIZONTAL SECTION VS IS V1 I1 V2 K0 V3 - V1 I3 K3 V4 I4 T4 V5 t5 t7 V7 sat tD Supply Voltage Range Supply Current Voltage Reference at Pin 1 Current at Pin 1 Voltage Swing at Pin 2 Free Running Frequency Constant Control Voltage Range Peak Control Current Gain Phase Comparator 1 K3 = 2 x I3 / 360 Sync Threshold Input (neg. edge) Current at Pin 4 Input Pulse Duration T = 1/fH Monostable Threshold Internal Pulse Width (t5 = C5 x V5 /I5) Output Pulse Duration (low) - T = 1/fH Output Saturation Voltage Permissible delay between output pulse leading edge and flyback pulse leading edge 1 (for keeping a constant duty cycle) ; T = fH Flyback Input Current at Pin 8 Clamp voltage at Pin 8 Current for switching low the output pulse Peak control current Sync high Sync low q Input high q Input low @ fH = 27.64kHz
q q
Parameter
Test conditions
Min. 10.5
Typ. 12 40 3.5 4 3.04 2.5 3 17
Max. 15.5 70 3.8 4.3 3.2
Unit V mA V mA VPP V mA µA degree V V µA µA µs V µs µs µs V s
I1 = 0.5mA
fo = 1/(K0 x R1 x C2) (See technical note 1)
3.2 -1 3.7 2.8 1.6
2
8 0.8 10 0.9T 6.4
- 10 1 5.6
C5 = 220 pF (see technical note 2) fH = 27kHz fH = 70kHz I7 = 600 mA See technical note 4 @ fH = 27kHz
6 3.6
0.38T 0.41T 0.44T 0.35T 0.39T 0.43T 1.2 2.5 0.41 T - t FLY
IFLY V8 I8 I9
0.7 0.9
3/7
9102T-03.TBL
Flyback On Flyback Off q I8 = 1mA q I8 = - 1mA
q q
0.7 -1 0.6
2
- 0.6 2
mA mA V V mA mA
9102T-02.TBL
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