CA3217 ® May 1997 NO C OM T RE M ED F END OR DES NEW S IG N Single Chip TV Chroma/Luminance Processor Features Description • All Chroma Processing and Demodulating Circuitry on a Single Chip in a 28 Lead Plastic Package • Balanced Chroma Demodulators with Low Output Impedance for Direct Coupling The Harris CA3217E (Note) is a monolithic silicon integrated circuit. It contains all the required circuit functions between the video detector and the picture tube RGB driver stages of a color television receiver. The CA3217E decodes the chrominance signals and then produces three different color signals that are internally combined with the luminance to develop the RGB signals. The picture saturation, hue and brightness DC controls are externally adjustable by the viewers. The AFPC, ACC, Dynamic flesh control, Beam limiting and Gate black level (Brightness) control are servo loops used to stabilize the RGB output and reduce frequent manual adjustment. The automatic beam limiter circuit reduces picture contrast and brightness to prevent excessive drive output at the picture tube. • Internal RF Filtering NOTE: Formerly Developmental Type No. TA10806. • Phase Locked Subcarrier Regeneration Sample and Hold Techniques Utilizing • Supplementary ACC with Overload Detector to Prevent Over Saturation of the Picture Tube • Linear DC Controls for Chroma Gain and Tint • Dynamic “Flesh Correction” - Corrects Purple and Green Flesh Colors without Affecting Primary Colors • Requires Few External Components Ordering Information • Automatic Beam Limiter • Chroma Luminance Tracking Picture Control PART NUMBER CA3217E TEMPERATURE RANGE -40oC to +85oC PACKAGE 28 Lead PDIP Pinout CA3217 (PDIP) TOP VIEW CHROMA OUT 1 28 BEAM LIMITER CHROMA CONTROL 2 27 LUMINANCE CHROMA INPUT 3 26 PICTURE CONTROL OVERLOAD FILTER 4 25 LOW PASS FILTER 5 24 BRIGHT CONTROL ACC, KILLER FILTER 6 23 VCC SANDCASTLE PULSE 7 22 BLUE GND 8 21 RED 9 20 GREEN 10 19 Q CARRIER IN o 11 18 I CARRIER IN o 12 17 DEMODULATOR CHROMA IN OSCILLATOR OUT 13 16 OVERLOAD, FLESH DISABLE APC FILTER OSCILLATOR IN 90 OSCILLATOR IN 180 TINT CONTROL 14 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2002. All Rights Reserved 7-65 15 CARRIER OUT File Number 1332.3 Specifications CA3217 Absolute Maximum Ratings Operating Conditions DC Voltage (Between Terminals 23 and 8) . . . . . . . . . . . . . . . 14.0V Power Dissipation Up to TA = +55oC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.27W Above TA = +55oC . . . . . . . . . . . . Derate Linearly at 13.3mW/oC Junction Temperature (Plastic Package) . . . . . . . . . . . . . . . +150oC Storage Temperature Range . . . . . . . . . . . . . . . . . -65oC to +150oC Lead Temperature (Soldering 10s). . . . . . . . . . . . . . . . . . . . +300oC Operating 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. Electrical Specifications TA = +25oC TEST CONDITIONS PARAMETERS TEST S2 S3 S4 S5 S6 mVP-P mVP-P CHROMA BURST IN mVP-P LUMA RELAYS ENERGIZED MIN TYP MAX 48 66 UNITS DC ELECTRICAL SPECIFICATIONS (Test 1 Through 5) Dissipation Pin 23 6.3V 11.2V 4.0V 6.3V 11.2V Pin 1 Bal XPT1 1.2V 11.2V 4.0V 6.3V 11.2V 10.5 VDC Pin 3 Bal XPT1 1.2V 11.2V 4.0V 6.3V 11.2V 2.2 VDC Pin 17 Bal XPT9 1.2V 11.2V 4.0V 6.3V 11.2V 3.0 VDC Pin 13 Bal XPT 13 1.2V 11.2V 4.0V 6.3V 11.2V 7.5 VDC 30 mA SWITCHING ELECTRICAL SPECIFICATIONS (Tests 6 Through 26) Oscillator Pull-In (Note 1) “D” 6.3V 11.2V 4.0V 6.3V 11.2V 25 25 K4, K7 Oscillator Level “D” 6.3V 11.2V 4.0V 6.3V 11.2V 0 0 K7 100% ACC (Note 2) P21 Vary 11.2V 4.0V 6.3V 11.2V 125 125 200% ACC (Note 3) P21 T8 11.2V 4.0V 6.3V 11.2V 250 250 20% ACC (Note 3) P21 T8 11.2V 4.0V 6.3V 11.2V 25 25 -350 +350 Hz 0.7 VP-P K4, K7 1.5 VP-P K4, K7 100 % K4, K7 90 % Tint Center (Note 4) S5 Vary 11.2V 4.0V Vary 11.2V 250 125 K4, K7 6.5 VDC R-Y Maximum P21 11.2V 11.2V 6.0V T11 11.2V 250 125 K1, K4, K7 6.0 VP-P Unkill P21 11.2V 11.2V 4.0V T11 11.2V 25 12.5 K4, K7 4.5 Kill P21 11.2V 11.2V 4.0V T11 11.2V 25 2.5 K4, K7 Chroma Reserver P21 11.2V 11.2V 4.0V T11 11.2V 12.5 125 Maximum Luma (Note 5) P21 11.2V 11.2V 4.0V T11 11.2V Luma Ratio (Note 6) P21 11.2V 6.3V 4.0V T11 Linearity (Note 7) P21 11.2V Vary 3.0 T11 T19 = T19/T18 P21 11.2V T18 3.0 4.78MHz Response (Note 8) P21 11.2V 11.2V 4.0V Contrast Limit 1 (Note 9) P24 11.2V 11.2V 4.0V Contrast Limit 2 (Note 9) P26 11.2V 11.2V 4.0V T11 11.2V 250 K3, K5, K7 8.2 VDC Bright Limit 1 (Note 10) P24 11.2V 11.2V 4.0V T11 11.2V 250 K3, K5, K7 3.1 VDC Bright Limit 2 (Note 10) P26 11.2V 11.2V 4.0V T11 11.2V 250 K3, K5, K7 5.6 VDC G-Y Ratio (Note 11) P20 11.2V 4.0V T11 11.2V 250 125 0.33 R B-Y Ratio (Note 11) P22 Vary T25 11.2V 4.0V T11 11.2V 250 125 1.20 R VP-P 150 mVP-P K2, K4, K7 2.0 VP-P 125 K1, K3, K7 2.2 VP-P 11.2V 125 K1, K3, K7 50 % 11.2V 425 K3, K7 4 VP-P T11 11.2V 212.5 K3, K7 T11 11.2V 125 K3, K6, K7 T11 11.2V 250 K3, K5, K7 50 -3 % 3 3.9 dB VDC NOTES: 1. With K7 energized and frequency counter at D vary C1 for 3.579175MHz. Then with K4 energized, check for pull-in. Repeat for frequency tuned to 3.579875MHz. For all other tests tune to 3.579545MHz ±10Hz. 2. Vary S2 for 1.5VP-P at Pin 21. 3. % of 100% ACC. 4. Adjust C1 for 3.579545MHz ±10Hz. Adjust S2 for 1.6VP-P at Pin 22 and 0 reference, then adjust S5 for minimum at P21. Read and record S5 voltage. 5. Black to White. 6. T17 = T17/T16. 7. Adjust S3 for 4.0V P-P. 8. AC amplitude = 50mVP-P reference 15kHz. 9. Adjust beam limiter to 10.7V. 10. Adjust beam limiter to 9.8V. 11. Adjust S2 for 1.5VP-P at Pin 21, then calculate P20/P21 and P22/P21. 7-66 Specifications CA3217 Typical Performance of the CA3217E FUNCTION TYPICAL DATA Nominal Supply 11.2V Nominal Dissipation 500mW Oscillator Stability Supply Variation 10-14V 5Hz Variation With Temperature (∆T = +50oC) 25Hz AFPC Characteristics DC Loop Gain 33Hz/Degree Pull In Range ±500Hz ACC Characteristics 100% Chroma Input Level 250mV P-P on Red Bar 3dB Point At 20% Nominal Input Level Hue Control Range 100o Saturation Control Range 40dB (Min) DEMODULATOR PARAMETERS RELATIVE AMPLITUDE ANGLE R-Y 1.0 93o B-Y 1.2 2o G-Y 0.3 258o Bandwidth (Chroma) 900kHz Flesh Control Primary Control in the +1 Half Plane Chroma Overload Control Two Levels Picture Control 40dB Brightness Control Black Level Clamped on 3V to 5V Level Beam Limiting On Picture and Brightness Controls Luma Bandwidth 5MHz (Min) Sandcastle Input 1.2 - 2.3V Blanking >3.3V Burst Gate Maximum Linear Output R 5V G 3V B 3.7V 7-67 CA3217 Functional Block Diagram CA3217E 7-68 CA3217 Schematic Diagram CA3217E 7-69 CA3217 Schematic Diagram (Continued) CA3217E 7-70 CA3217 Test Circuit FIGURE 1. TEST CIRCUIT FOR CA3217E Typical Performance Curves BRIGHTNESS = 4V, SATURATION = 6.3V PIN 28 = 11.8V 5.5 PIN 21 LUMINANCE (VP-P) 14 PIN 21 BLACK LEVEL (V) TA = +25 oC, LUMA INPUT = 0.5VP-P (30% SYNC) TA = +25oC, LUMA INPUT = 0.5VP-P (30% SYNC) CONTRAST = 6.3V, SATURATION = 6.3V PIN 28 = 11.8V 12 10 8 6 4 2 4.5 3.5 2.5 1.5 0.5 0 2 4 6 BRIGHTNESS CONTROL (V) 8 0 10 2 4 6 8 10 12 14 CONTRAST CONTROL (V) FIGURE 2. TYPICAL P 21 BLACK LEVEL VERSUS BRIGHTNESS CONTROL FIGURE 3. TYPICAL P 21 LUMINANCE OUTPUT vs CONTRAST CONTROL 7-71 CA3217 Typical Performance Curves TA = +25oC, LUMA = 0.5VP-P (30% SYNC) HUE = 6.3V, SATURATION = 6.3V PIN 1 CHROMA OUTPUT (mVP-P) CONTROL VOLTAGE 12 (Continued) 10 CONTRAST PIN 26 8 6 BRIGHTNESS PIN 24 4 2 9 10 11 TA = +25o C, CHROMA INPUT = 250mVP-P BURST = 125mVP-P, CONTRAST = 11.2V 2200 BRIGHTNESS = 4.0V, BEAM LIMITER = 11.8V 1800 1400 1000 600 200 0 12 10 4 6 8 SATURATION CONTROL (V) 2 PIN 28 BEAM LIMITER (V) 14 FIGURE 5. TYPICAL P1 CHROMA OUTPUT vs SATURATION CONTROL TA = +25oC, CHROMA INPUT = 250mVP-P BURST = 125mVP-P, LUMA = 0.5VP-P (30% SYNCH) HUE = 6.3V, BRIGHT = 4.0V, PIN 28 = 11.8V 1200 1000 3 LUMINANCE PIN 21 OUTPUT PIN 1 CHROMA OUTPUT (mVP-P) FIGURE 4. TYPICAL BEAM LIMITER vs CONTRAST AND BRIGHTNESS 12 800 600 400 0 2 4 10 6 8 CONTRAST CONTROL (V) 12 2 INITIAL CONDITION ADJUST PIX CONTROL FOR 1VP-P LUMA (BLK TO WHT) 1 TA = +25oC, CHROMA INPUT = 250mVP-P SATURATION = 6.3V, BRIGHTNESS = 4V BEAM LIMITER = 11.8V 200 CHROMA ADJUST SAT. CONTROL FOR 1VP-P RED (BLK TO PEAK) 14 2 FIGURE 6. TYPICAL P1 CHROMA OUTPUT vs CONTRAST CONTROL 4 6 8 PICTURE CONTROL (V) 10 FIGURE 7. TYPICAL LUMA/CHROMA TRACK 7-72 12 CA3217 FIGURE 8. TYPICAL APPLICATION CIRCUIT 7-73