CA3154 May 1999 [ /Title (CA31 54) /Subject (TV Sync/A GC/Ho rizontal Signal Processor) /Autho r () /Keywords (Harris Semiconductor, TV sync processor, horizontal oscillator, horizontal processor, sync separator, AFC circuit, AGC cir- T UCT ROD ACEMEN 47 P E 7 T L OLE REP 00-442-7 OBS ENDED 8 M ns 1 .com COM pplicatio @harris E R NO ntral A entapp TV Sync/AGC/Horizontal Ce : c Call or email Signal Processor Features Description • Horizontal Oscillator with AFC The CA3154 is a monolithic integrated circuit TV signal processor designed for use in color or monochrome receivers. Circuit functions include a horizontal oscillator with AFC, a sync separator, and a keyed AGC system. The AGC system provides output signals for IF (reverse) and tuner (forward and/or reverse). The wide frequency-range horizontal oscillator has high stability at 503.5kHz. When the CA3154 is used in conjunction with horizontal/vertical countdown circuits, the need for horizontal and vertical hold controls is eliminated. • Sync Separator with Noise Immunity • Strobed AGC System • lF AGC Output • Delayed Outputs for Forward or Reverse AGC Tuners • Internal Noise Threshold • High-Impedance Video Input • Choice of Dual External Time Constants for Sync Separator Noise Immunity • RF AGC Delay Externally Controlled • Output Short-Circuit Protection Part Number Information PART NUMBER CA3154E TEMP. RANGE (oC) -40 to 85 PACKAGE 16 Ld PDIP PKG. NO. E16.3 Pinout CA3154 (PDIP) TOP VIEW 16 HORIZ PULSE INPUT VIDEO INPUT 1 15 AGC FILTER SYNC SEP 2 14 IF GAIN CLAMP COMP SYNC INPUT 3 13 IF AGC HORIZ SAWTOOTH INPUT 4 GND 5 12 TUNER REV. AGC OSC PHASE INPUT 6 11 TUNER FWD AGC 10 HORIZ AFC FILTER OSC QUAD INPUT 7 9 SUPPLY VOLTAGE OSC OUTPUT 8 CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © Harris Corporation 1999 8-42 File Number 1183.2 CA3154 Absolute Maximum Ratings Thermal Information DC Supply Voltage (V+ to V-) . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Thermal Resistance (Typical, Note 1) θJA (oC/W) PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Maximum Junction Temperature (Plastic Package) . . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC Operating Conditions Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTE: 1. θJA is measured with the component mounted on an evaluation PC board in free air. Electrical Specifications PARAMETER Terminal 5 to GND, and Terminal 9 to +12V, Unless Otherwise Specified TEST CONDITIONS SYMBOL (TERMINALS CONNECTED AS SHOWN BELOW) TEMP (oC) MIN TYP MAX UNITS Power Supply Current I9 Measure (9) 25 10 - 22 mA Video Inverter Voltage V2 (1) to +4V, (2) 12kΩ to GND, (3) 27kΩ to GND, Measure (2) 25 5.2 - 6.4 V Sync Separator High Output Voltage V3H (1) to +4V, (2) 12kΩ to GND, (3) 27kΩ to GND, Measure (2) 25 10.7 - - V Sync Separator Low Output Voltage V3L (1) to +4V, (3) 27kΩ to GND, Measure (3) 25 - - 1.3 V Video Noise Clamp Voltage V3 Clamp (1) to +3.1V, (3) 27kΩ to GND, Measure (3) 25 10.7 - - V AGC Discharge Current I15 (1) to +4.4V, (2) 10kΩ to GND, (15) 470Ω to Discharge +6V, (16) 27kΩ to 12V, Measure (15) 25 0.6 - 1.4 mA AGC Charge Current I15 Charge (1) to +3.45V, Otherwise, Same as Above 25 -2.1 - -4.8 mA AGC Comparator Leakage I15 Leakage (1) to +3.45V, (2) 10kΩ to GND, (15) 4.7kΩ to +6V, Measure (15) 25 -20 - 20 µA AGC Threshold Voltage V1TH Adj. (1) for I15 = 0 ±0.1mA, (2) 10kΩ to GND, (15) 4.7kΩ to +6V, (16) 27kΩ to +12V, Measure (1) 25 3.8 4 4.3 V Minimum IF AGC V13L (11) 10kΩ to GND, (12) 10kΩ to +12V, (13) 22kΩ to +5V, (14) 1kΩ to +2.95V, (16) 1kΩ to +2.2V, Measure (13) 25 0.75 - 1.25 V Forward Tuner AGC Leakage Current I11 Leakage (11) 10kΩ to GND, (12) 10kΩ to 12V, (13) 2.2kΩ to +5V, (14) 1kΩ to +2.95V, (15) 1kΩ to +5.3V, Measure (11) 25 -20 - 20 µA Reverse Tuner AGC Leakage I12 Leakage Same as Above, but Measure (12) 25 -10 - 10 µA IF AGC High Voltage V13H Same as Above, but Measure (13) 25 3.65 - 4.15 V Forward Tuner AGC Low Voltage V11L (11) 3.6kΩ to GND, (12) 3.16kΩ to +12V, (13) 2.2kΩ to +5V, (14) 1kΩ to +2.95V, (15) 1kΩ to +7.9V, Measure (11) 25 0.8 - 3.2 V Reverse Tuner AGC Low Voltage V12L Same as Above, but Measure (12) 25 1.65 - 3.25 V Maximum IF AGC Voltage V13H (11) 10kΩ to GND, (12) 10kΩ to +12V, (13) 2.2kΩ to +5V, (14) 1kΩ to +2.95V, (15) 1kΩ to +7.9V, Measure (13) 25 4.85 - 5.2 V Phase Detector Leakage Current I10L (2) 10kΩ to GND, (3) to GND, (4) 5kΩ to +3.8V, (10) 10kΩ to +6V, Limit GND at (3) to 10s, Measure 10 25 -5 - 5 µA 8-43 CA3154 Electrical Specifications Terminal 5 to GND, and Terminal 9 to +12V, Unless Otherwise Specified (Continued) TEST CONDITIONS SYMBOL (TERMINALS CONNECTED AS SHOWN BELOW) PARAMETER TEMP (oC) MIN TYP MAX UNITS 25 2.65 - 3.1 V Connect Oscillator Loop Shown in Test Circuit to (6), (7), (8); (3) to GND for 10s Max, Measure (6) 25 0.6 - 1.6 VP-P Phase Detector Bias Voltage V4 Oscillator Output Voltage V6 Oscillator Free-Running Frequency f6FR Same as Above 25 475 - 535 kHz Oscillator Frequency High f6H Connect Oscillator Circuit Shown in Test Circuit to (10), (7), (8); (2) 10kΩ to GND, (4) 5kΩ to +18V, Measure (6) 25 520 - - kHz Oscillator Frequency Low f6L Same as Above, Except (4) 5kΩ to +3.8V 25 - - 485 kHz Sync Separator Short Circuit I3 Max (3) 10Ω to GND for 10s Max 25 - - 40 mA Oscillator Output Short Circuit I8 Max (8) 10Ω to GND for 10s Max (3) 10Ω to GND for 10s Max 25 - - 130 mA IF GAIN CLAMP IF AGC AGC DELAY AGC DISCHARGE FILTER CAP HORIZ GATING PULSE INPUT 15 16 +12V TUNER POWER FWD AGC SUPPLY TUNER REV AGC KEYED AGC GATE 14 13 IF AGC AMP 11 12 TUNER REV AGC AMP 9 +12V TUNER FWD AGC AMP OSC OUT HORZ OSC 7V 1 BUFFER AMP SYNC AMP SYNC SEPARATOR 4V AFC 503.5 kHz (32H) VIDEO INPUT 8 QUAD FB IN 7 6 OSC FB PHASE SHIFT IN 5 GND 2 3 COMPOSITE 4 SYNC SEPARATOR SYNC OUTPUT 10 AFC HORIZ SAWTOOTH FILTER PULSE HORIZONTAL INPUT FIGURE 1. FUNCTIONAL BLOCK DIAGRAM OF CA3154 8-44 32 X HORIZ FREQ HORIZ OUTPUT CA3154 TO 6 TO 7 TO 2mH Q ≈ 10 470Ω 620pF ±2% 8 1kΩ 56pF ±2% 330pF ±2% 1.8kΩ NOTE: Oscillator loop to be used as indicated in the electrical characteristics chart, with coil adjusted for typical unit to 503.5kHz for f6FR. FIGURE 2. ELECTRICAL CHARACTERISTICS TEST CIRCUIT V15 +12V V13 POT. DELAY SETTING V14 V13 B A V11(TUNER FWD AGC) V12(TUNER REVERSE AGC) V13(MIN) = V14 -2.1V V14IF(MAX)GAIN BIAS V15(MIN) = V14 -0.7V VDELAY VO IF AGC IF MAX GAIN AT IF GAIN RED. TUNER GAIN LOW SIGNAL RANGE REDUCTION RANGE LEVEL RF INPUT SIGNAL FIGURE 3. TYPICAL OPERATION OF AGC CIRCUITS USING THE CA3154 9 12V R4 9.5K R38 15K R6 500 R10 7.5K R83 500 R40 16.6K R46 4.24K Q37 R44 2.5K 10.7V 4.5V R43 5K Q38 Q3 7V R9 580 4V R5 22K VIDEO INPUT Q4 1 Q40 R8 520 Q44 R7 3.4K R1 R.6K R54 13.5K Q43 R41 15K SYNC TO AGC REF BIAS TO AGC (4V) R48 1.7K R49 200 SYNC OUTPUT 3 2 FIGURE 4. SCHEMATIC OF SYNC SEPARATOR SECTION OF THE CA3154 8-45 SYNC TO HOR AFC R52 33 Q42 R3 390 SYNC SEP. R42 15K Q46 Q36 R39 1K Q1 VIDEO TO AGC R47 15K Q35 Q2 R2 390 Q45 Q41 3.4V Q6 R51 27K R50 7.9K Q39 R45 7.18K Q33 R53 4.17K 5 CA3154 VIDEO FROM VIDEO BUFFER AMP REF BIAS (4V) R13 400 SYNC FROM SYNC SEP DELAY SET R24 500 R14 100 12 TUNER REV AGC 13 IF AGC R34 950 R26 15K R25 500 Q6 R35 425 Q30 Q10 Q8 Q31 Q11 R37 5K Q23 Q16 R11 100 R12 100 Q17 Q19 Q18 Q13 HORIZ PULSE IN 16 Q32 Q24 R16 5K Q7 Q5 Q20 R19 500 Q27 Q26 R20 500 Q25 R18 1.5K R17 6.8K R31 2.5K R29 400 Q21 Q12 Q15 R22 15K R85 800 Q22 Q29 Q28 R33 200 R32 575 R28 400 14 IF GAIN CLAMP 15 TUNER 11 FWD AGC R30 6.7K R27 6.2K Q19 R21 1K 9 +12V 5 FIGURE 5. SCHEMATIC OF AGC SECTION OF THE CAA3154 HORIZ AFC FILTER 10 9 +12V R81 R63 2.2K R61 2.22K R78 3K Q74 R62 10K Q55 Q68 R76 11K Q59 Q66 Q69 Q71 Q67 R68 2.3K Q57 Q51 R57 10K R59 10K R60 8.2K Q58 R65 1.9K R69 10K 2.8V R75 33K Q62 QUAD OSC 7 Q65 Q63 Q64 R74 4.7K R73 4.7K PHASE SYNC OSC INPUT 6 1.4mA SYNC FROM SYNC SEP ≅ 0.5mA Q47 R55 200 Q48 Q56 R56 200 R66 4.7K R64 100 Q61 Q60 R67 4.7K R71 100 R71 100 R79 3.3K 5 FIGURE 6. SCHEMATIC OF AFC-OSCILLATOR SECTION OF THE CA3154 8-46 8 OSC OUTPUT R80 9.9K 6.1V Q49 R58 8.2K R70 3.7K Q52 Q50 4 R82 14 100K Q53 HORIZ. SAWTOOTH INPUT Q70 R77 Q54 Q72 Q73 3.3K CA3154 AGC IF TUNER REV 4.7µF TUNER FWD 4.3V 220Ω 1.2kΩ 330Ω 16.5kΩ 1kΩ 1.0µF 33pF 0.0068µF DELAY 7V 3.9kΩ 2.2µF 4.5kΩ 500Ω 2.7kΩ 4V VIDEO INPUT 2.2kΩ 2.7kΩ 150pF 0.22µF 16 15 14 13 12 11 10 9 0.1µF HORIZ. P.B. PULSE (+60V) INPUT 33kΩ CA3154 1 10kΩ 2 3 4 5 6 7 8 680Ω 0.1µF 1.2kΩ 470Ω 39pF 1µF 1.2kΩ Q ≅ 10 2.4mH 470Ω 18Ω 620pF 1.2kΩ 470pF 0.033µF 180kΩ 27µH 220kΩ 0.0047µF SYNC SEPARATOR OUTPUT-POSITIVE SYNC TIPS 32 X HORIZ. FREQ. (503.5kHz) OSC. OUTPUT FIGURE 7. TYPICAL APPLICATION OF THE CA3154 8-47 +12V POWER SUPPLY