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TDA9102C
H/V PROCESSOR FOR TTL V.D.U
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
. . . . . . . . .HORI . . . . . . .
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 ZONTAL OUTPUT DUTY CYCLE : 41%
POWERDIP20 (0.4) (Plastic package) ORDER CODES : TDA9102C
Substrate Ground
11 12
10 9
Horizontal Phase Adjust Phase Comparator 2 Output
Vertical Frequency Preset C13
13 14
8 7
Horizontal Flyback Input Horizontal Output
Vertical TTL Input Vertical Ramp Output
15 16
6 5
Horizontal Power Ground C5
Vertical Amplitude Adjust Vertical Linearity Adjust
17 18
4 3
Horizontal TTL Input Phase Comparator 1 Output
DESCRIPTION The TDA9102C 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 is supplied in a 20 pin dual in line package with pin 11 connected to ground and used for heatsinking.
May 1996
Linearity Output Vertical Reference Voltage VS
19 20
2 1
C2
R1
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9102001.EPS
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DC FREQUENCY ADJUSTEMENT
VS
R3 C1 C3 R2 C2 R1
TDA9102C
BLOCK DIAGRAM
DC HORIZONTAL PHASE ADJUSTEMENT
10 3 1 2 20 11
TDA9102C
PHASE COMPARATOR 1 VOLTAGE REGULATOR 19 VREF HORIZONTAL OSCILLATOR
+ 5V
R4
HORIZONTAL SYNC. INPUT
4
HORIZONTAL TTL INTERFACE LOW SUPPLY VOLTAGE PROTECTION
15
DC VERTICAL
16 AMPLITUDE
ADJUSTEMENT
VERTICAL TTL INTERFACE VERTICAL OSCILLATOR 13
C13
5
C5
VS
12 HOR. PULSE SHAPER 2
C18
DC FREQUENCY PRESET
R18 R12
7
PHASE COMPARATOR
6
9
C9
8
14
17
18
+ 5V
R8
R14
DC VERTICAL LINEARITY ADJUSTEMENT HORIZONTAL FLYBACK INPUT VERTICAL SYNC. INPUT
91020S2.EPS
TDA9102C
ABSOLUTE MAXIMUM RATINGS
Symbol VS VSYNC IOH I15 I19 PTOT TSTG , TJ Parameter Supply Voltage Sync Input Peak Voltage Output Sinking Peak Current (Pin 7 ; t < 3s) Output Current (Pin 15) Output Current (Pin 19) Total power dissipation o q Tamb < 70 C o q Tpin < 90 C Storage and Junction Temperature Value 18 + VS 2 - 10 - 10 1.4 1.5 - 40 to 150 Unit V V A mA mA W W o C
9102001.TBL
THERMAL DATA
Symbol RTH(J-C) R TH(J-A)
o
9102002.TBL 9102003.TBL
Parameter Junction-case Thermal Resistance Junction-ambient Thermal Resistance
Value 40 55
Unit C/W 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 10.5 I1 = 0.5mA 3.2 -1 3.7 2.8 1.6 12 40 3.5 4 3.04 2.5 3 17 15.5 70 3.8 4.3 3.2 V mA V mA VPP V mA A degree V V A A s V s s s V s Parameter Test conditions Min. Typ. Max. Unit
fo = 1/(K0 x R1 x C2) (See technical note 1)
Sync high Sync low q Input high q Input low @ fH = 27.64kHz
q q
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
q q q q
Flyback On Flyback Off I8 = 1mA I8 = - 1mA
0.7 -1 0.6 0.7 0.9
2
- 0.6 2
mA mA V V mA mA
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TDA9102C
ELECTRICAL CHARACTERISTICS (continued) (TAMB = 25oC, VS = 12V, refer to the test circuits, unless otherwise specified)
Symbol HORIZONTAL SECTION K9 V10 K10 HADJ Phase sensitivity at Pin 9 Control voltage range Phase control sensitivity at Pin 10 Horizontal phase adjustment for V10 varying from 0.5 to 4.5V (27.64kHz) Phase jitter constant (jitter = K1
6
Parameter
Test conditions (See technical note 3)
Min.
Typ. 67.5
Max.
Unit degree V V degree V degree
0.5 20 Zero degree phase: flyback centered on the middle of the pulse at Pin 5 - 45
22.5
4.5 25 + 45
K1 K2
10 . fH
)
VS = 10.5V to 15.5V
100
150 400
ppm ppm V
Frequency drift versus supply voltage dF . 106 K2 = dV . fH Voltage reference at Pin 12 Current gain at Pin 13 Typical Vertical Sawtooth Amplitude (Pin 13) for Center Frequency Discharge time at Pin 13 Maximum Vertical Frequency Minimum Vertical Frequency K14 fV Sync input threshold (negative edge) Synchro window constant ts = Current at Pin 14 Input pulse duration T = 1
VERTICAL SECTION V12 I13 I12 V13 tFALL fVL fVH K14 V14 I14 t14 V15 II15I K15 K16 I12 = 100A (I12 max. = 200A) To be adjusted by I12 C18 = 0.22 F, V13 = 4VPP Vertical Sync Low CPin 13 = 220nF, R Pin 12 = 58k Vertical Sync High CPin 13 = 220nF, R Pin 12 = 58k (See technical note 6) Sync high Sync Low q Input high q Input Low V14 = 0.8V
q q
3.2 0.94
3.5 1 4 10 84 56 0.333
3.8 1.06
V
VPP 22 s Hz Hz
2
8 0.8 10 0.5T 4 1 0.95 0.1 0.1
- 10 10
V V A A s V mA
fV
@ fV = 64.75Hz V13 = 4VPP, V 16 = 2.5V V16 = 2.5V 2.5V < V16 < 4.5V 0.5V < V16 < 2.5V V16 = 0.5V V17 = 4.5V V18PP
Average value of voltage on Pin 15 Output current at Pin 15 Buffer gain constant at Pin 15 V15PP = K15 . V13PP Buffer variable gain constant at Pin 15 : V15PP K16 = V16 . V13PP Input bias current at Pin 16 Input bias current at Pin 17 Average voltage at Pin 18 : V18 = 2 + Linearity correction constant : K18 = Voltage reference at Pin 19 Current at Pin 19
V -1 -1 V A A V
I16 I17 V18 K18 V19 I19
- 50 50 3 1 7.6 8 8.4 2
2
V17 = 3.5V, R18 not connected V13PP = 4V,1.5V < V17 < 4.5V (See technical note 5)
V mA
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9102004.TBL
V18PP V17
TDA9102C
ELECTRICAL CHARACTERISTICS (continued) (TAMB = 25oC, VS = 12V, refer to the test circuits, unless otherwise specified)
Symbol VERTICAL SECTION K17 Frequency drift versus supply voltage K17 = dF . 106 dV . fV VS = 10.5V to 15.5V 300 ppm V Parameter Test conditions Min. Typ. Max. Unit
9102005.TBL 9102004.EPS
Technical note 1
HORIZONTAL OSCILLATOR 1 HOR. SYNC.
Technical note 3 K9 = 67.5 degrees/volt represents the slope of the oscillator charging period of the waveform at Pin 2: 360 x 0.75 degree K9 = V 4 Technical note 4 The second PLL can recover the storage of horizontal output stage maintaining a constant duty cycle till the trailing edge of the output pulse gets the trailing edge of the flyback pulse. From this point on, only the leading edge of the output pulse will be shifted covering a total phase shift of: 0.30T; overcoming this value, it will produce a notch in the output pulse (@ fH = 27kHz). Technical note 5 The voltage reference at Pin 19 can be used to polarize the DC operating point of the vertical booster. This voltage corresponds to the double of the mean value voltage of the vertical sawtooth at Pin 13. Technical note 6
9102003.EPS
V3H
V3H
V DC
V3L 2 C2 if R1 I1 C1 R3 C3 1 R2 3
V3L
V DC
fH (nom) = 26.8 kHz R1 = 6.8k R2 = 56 k C2 = 1.8 nF
fpull-in = fH (nom)
where: V1 = 3.5V and V3 - V1 is the control voltage range. The voltage at Pin 3 is limited by two clamping diodes at the voltage V3H and V3L When the PLL1 is synchronized and perfectly tuned, V3 = V1. Remark: The value of C2 influences the horizontal oscillator free running frequency; it doesn't effect the relative pull-in range. If the horizontal frequency is changed by using R1, the pull-in range changes accordingly with the formula (A). Technical note 2 The internal pulse "t5", is generated by the current generator "I5" charging the external capacitor "C5", according with the formula (B): C5 . V5 TH is recommended. (B), t5 = t5 = I5 12
V3 - V1 / R2 If = fH (nom) Io V1 / R1
(A)
V (V) V H = 6.8V V = 6V V L = 5.2V
V LL = 2V t (s) 1/fv ts
VH - VL VH - VLL = ts 1/fV (VH - VL) 1 K14 ts = = (VH - VLL) fV fV
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VS VO C2 470F R3 51k IC1 7812 R5 39k C1 100nF R9 82 2W Hor. Out G N D VI 14V
TDA9102C
R7 39k
R1 3.3k C3 15nF R6 5.1k R8 5.1k C4 15nF C5 15nF
R2 3.3k
P1 47k
P2 47k
P3 47k
Hor. Sync.
R4 22k
APPLICATION DIAGRAM (with TDA8172)
Hor. Power GND
Vert. Sync.
4 6 R10 22k 2 7 C8 100F R11 22k C9 100nF
14
17
16
10
20
7
R28 2.2k
R29 2.2k
C6 100nF
C7 1000F
D1 1N4001
C10 220 F 6 IC3 3
C21 0.22nF
5
IC2
19
Fly. Input
R27 100k
15 18 3 C15 1F 2 11 13 12
TDA9102C
R12 10k R19 47k *
TDA81 72
1 4
5 R14 1.5 R13 120 Vert. Yoke
8
C20 22nF
9
1
F C14 10
"C" Correction
C12 220nF
R26 22k
R24 56k
P5 47k
P4 47k R23 3.3k C19 2.2F C18 15nF R22 220k R21 62k C17 1.8nF
R20 150k
R18 1.2k
R15 1.5k
C13 47F C11 2200F
R25 6.8k
C16 220nF
R17 2.7k
R16 1 Note : * The value of R19 depends on CRT. On the mock up R19 is substitued with a resistance + trimmer for generic applications.
9102005.EPS
TDA9102C
PACKAGE MECHANICAL DATA 20 PINS - PLASTIC DIP
Dimensions a1 B b b1 D E e e3 F I L Z
Min. 0.51 0.85 0.38
Millimeters Typ.
Max. 1.40
Min. 0.020 0.033 0.015
Inches Typ.
Max. 0.055
0.50 0.50 24.80 8.80 2.54 22.86 7.10 5.10 3.30 1.27
0.020 0.020 0.976 0.346 0.100 0.900
DIP20PW.TBL
0.280 0.201 0.130 0.050
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1996 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
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PM-DIP20.EPS

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