KA7302D CDS, AGC, GAMMA CORRECTION GENERAL DISCRIPTION 30-SSOP-375 The KA7302D is a bipolar monolithic integrated circuit for CCD Color Video Camera, and then it provides functions of Correlated Double Sampling, Automatic Gain Control and Gamma Correction. FEATURES • CDS ( Correlated Double Sampling ) • AGC ( Automatic Gain Control ) • Gamma Compensation • +5V Single Power Supply • Low Power < 400 mW • Dual Power Down Mode - AGC Part stand by mode ( AGC OUT : GND ) • Maxmum Operational Frequency > 20 MHz ORDERING INFORMATION Device KA7302D Package Operating Temperature -20°C ~ +75 °C 30-SSOP-375 CLP1 PBLK CLP4 REFV DGND CDS CAP AGC CAP GAMMA OUT CDS OUT SO SOB GAM CAP VCC AGND2 AGC OUT BLOCK DIAGRAM 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 REV BLK GC1 BUF CLP AGC C O M P 1 C O M P 2 SH3 BUF CLP SH2 B U F CLP BUF 6dB SH1 SHD GC2 BLK C_GAMMA SHP Y_GAMMA CLP GAMCON DLY BPF MIX GC3 6 7 8 9 10 XSHP DATA IN PG IN AGND1 AGC CONT CDS GC C_GAM CONT TRAP1 TRAP2 11 12 13 14 15 Y_GAM CONT 5 DLY2 4 DLY1 3 AGC GC 2 GAMMA GC 1 XSHD GAMCON KA7302D CDS, AGC, GAMMA CORRECTION PIN DESCRIPTION No Symbol I/O Description Active 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 XSHD XSHP DATA IN PG IN AGND1 AGC CONT CDS GC1 C γ CONT TRAP1 TRAP2 γ GC3 AGC GC2 DLY1 DLY2 Y γ CONT AGC OUT AGND2 VCC γ CAP SOB SO CDS OUT γ OUT AGC CAP CDS CAP DGND REFV CLP4 PBLK CLP1 I I I I I I I O I I I I O I O O O O O O O O O I I I Sample & Hold DATA Pulse Sample & Hold Pre - Charge Pulse CCD Signal Input CCD Signal Input Analog Ground AGC Gain Control CDS Gain Control C _ Gamma Control A Luminance trap filter is tied between this pin & Trap2 Y _ Gamma Control GC3 Gain Control GC2 Gain Control Output for Delay (Chroma Signal) Input for Delay (Chroma Signal) Y Gamma Curve Control AGC Signal Output Analog Ground Power Supply Gamma Clamp Capacitor Connected to BPF Connected to BPF CDS Signal Output Gamma Signal Output AGC Clamp Capacitor CDS Clamp Capacitor Digital Ground Reference Voltage Output Clamp Pulse 4 Input Pre - Blarking Pulse Input Clamp Pulse 1 Input LOW LOW * HIGH(H): 4.0V ↑, HIGH LOW HIGH LOW(L): 4.0V ↓ ABSOLUTE MAXIMUM RATINGS(Ta = 25°C) Characteristic Power Source Voltage Power Dissipation Operating Temperature Storage Temperature Symbol Value Unit Vcc Pd Topr Tstg 7 900 -20 ~ 75 -65 ~ 150 V mW °C °C Value Unit RECOMMANDED OPERATING CONDITIONS (Ta = 25°C) Characteristic Supply Voltage Symbol Vcc 4.5 ~ 5.5 V KA7302D CDS, AGC, GAMMA CORRECTION ELECTRICAL CHARACTERISTICS ( Vcc = 4.5 ~ 5.5 V , Ta = 25 °C ) Characteristics SUPPLY CURRENT Symbol ICCR1 ICC1 GC1 CONT.Min GC1 CONT.Max CDS OUT Maximum Voltage Swing GC1 AMP CMPR GC1 AMP Bandwidth AGC CONT.Min GC1A Min GC1A Max CDR1 CMR1 FC1A AGC1 Min AGC CONT.Max AGC AMP CMRR AGC AMP Bandwidth GC3 AMP CMRR AGC AMP Bandwidth AGC1 Max CMRA FCA1 CMR3 FC3A GC3 CONT.Min GC3A Min GC3 CONT.Max GC3A Max ϒ OUT Maximum Voltage Swing GDR1 Test Condition AGC OUT & GAM OUT → OPEN VCC=5V AGC OUT → GND VCC=5V CDS OUT/DATA IN CDS GC=1.5V CDS OUT/DATA IN CDS GC=4.5V DATA IN = 400mV (Peak to Peak) 15.75KHz 10MHz TRAP1 OUT/DATA IN AGC CONT =1.5V Cal :AGC Gain -6dB TRAP1 OUT/DATA IN AGC CONT = 4.5V Cal: AGC Gain -6dB 15.75KHz 20MHz 15.75KHz 10MHz ϒ OUT/SO ϒ GC=1.5V ϒ OUT/SO ϒ GC=4.5V SO Input = 400mV (Peak to Peak) Min Typ Max Unit 61 73 88 mA 55 64 78 mA - -6 -4 dB 14 18 - dB 2.0 - - V -3 -4.0 - -36 - dB dB 4.0 6.0 8.0 dB 30 32 - dB -3 -3 -40 -40 - -36 -36 - dB dB dB dB - -6 -4 dB 14 18 - dB 2.0 - - V KA7302D CDS, AGC, GAMMA CORRECTION ELECTRICAL CHARACTERISTICS ( Vcc = 4.5 ~ 5.5 V , Ta = 25 °C ) Characteristics Symbol γ Y1.0(Typ) γ Y T.1 γ Y2.0/γ Y1.0 γ Y 2.0A γ Y3.0/γ Y1.0 γ Y 3.0A γ Y0.5/γ Y1.0 γ Y 0.5A γY γC γ Y0.5( Max ) γ Y Max γ Y 0.5 ( Min ) γ Y Min γ C 1.0 ( Typ ) γ CT1 Typ. γ C 1.0 ( Max ) γ CT1 Max γ C 1.0 ( Min ) γ CT1 Min γ C 0.5/γ C 1.0 γ C 0.5 A γ C 2.0 /γ C 1.0 γ C 2.0 A Test Condition TRAP2 input=0.4VPP Gamma GC=2.6V Measure : Gamma Output TRAP2 input =0.8Vpp Gamma GC = 2.6V Cal.:Gamma Output /γ YT1 TRAP2 input =1.2Vpp Gamma GC = 2.6V Cal.:Gamma Output /γ YT1 TRAP2 input =0.2Vpp Gamma GC = 2.6V Cal.:Gamma Output /γ YT1 TRAP2 input =0.2/0.4Vpp Gamma GC = 2.6V Y_Gamcont = 1.8V Cal.:Gamma Output ( 0.2 Vpp / 0.4 Vpp ) TRAP2 input =0.2/0.4Vpp Gamma GC = 2.6V Y_Gamcont = 5.0V Cal.:Gamma Output ( 0.2 Vpp / 0.4 Vpp ) TRAP1 output =0.8Vpp C_GAMCONT = 0.0V Measure, : DL1 Output TRAP1 output =0.8Vpp C_GAMCONT = 1.8V Measure, : DL1 Output TRAP1 output =0.8Vpp C_GAMCONT = 5.0V Measure, : DL1 Output TRAP1 output =0.4Vpp C_GAMCONT = 0.0V Measure, : DL1 Output CAL. : DL1 output /γ CT1 Typ. TRAP1 output =1.6Vpp C_GAMCONT = 0.0V Measure, : DL1 Output CAL. : DL1 output /γ CT1 Typ. Min Typ Max Unit 400 525 650 mV 1.2 1.4 1.6 - 1.4 1.6 1.8 - 0.68 0.74 0.80 - 0.78 0.85 0.92 - 0.55 0.62 0.70 - 270 310 350 mV 300 340 380 mV 240 275 310 mV 0.5 0.6 0.7 - 1.38 1.55 1.72 - 29 C O M P 2 30 C O M P 1 SHP 2 SHD 1 28 27 REV 4 SH1 SH2 GC1 SH3 3 26 CLP 5 25 BLK 6 24 23 BUF AGC 6dB 8 GAMCON C_GAMMA 7 22 CLP 9 21 20 19 18 GC2 Y_GAMMA BLK BUF GAMCON 13 CLP 12 BPF 11 DLY 10 16 GC3 17 BUF MIX 15 CLP 14 ON OFF CDS, AGC, GAMMA CORRECTION KA7302D TEST CIRCUIT B U F Vcc KA7302D CDS, AGC, GAMMA CORRECTION 3.3KΩ DTC143TU +5VA IRIS WND CLP4 PBLK CLP1 SHD SHP APPLICATION CIRCUIT 10K R-OUT 2.2KΩ 1KΩ 3 4 IMT1 2 R-OUT 3.3K 5 TO KS7301B 1 6 CLP 1 CLP2 PBLK SHD SHP 33µH 1KΩ 10µF /16V +5VA 33pF 104 105 2.2KΩ 105 + 1KΩ KSC1623 10Ω WND R-OUT 2.2K Ω 104 VCC GND DL1 DL2 SHD SHP IN+ IN- GND AGC GC1 CRC IRP YRI YRC KA7302D 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 7 105 105 6 8 5 9 10 4 DL1 LPF DLY 3 11 2 12 1 10pF DATA/PG IN 105 +5VA 104 4.7K 10 KSA812 4.7KΩ 12KΩ 10KΩ 10Ω 1KΩ 104 27KΩ 1KΩ KSC1623 YR CONT CR CONT AGC 4.7KΩ 100µH TO EVR IRIS AGC YR CONT CR CONT AGCO RCLP GC2 SO SOB 19 18 17 16 RGC CDSO ALCP ROUT GND CCLP REP CLP4 PBLK CLP1 30 29 28 27 26 25 24 23 22 21 20 103 WND 105 10Ω 10pF 1 2 3 4 5 10pF 10KΩ 1 2 3 4 KA7302D CDS, AGC, GAMMA CORRECTION TIMING CHART 105ns 11us 9.54MHz 35ns 17ns 5V 9.54MHz 0V 5V 9.54MHz 70us 0V 88ns 105ns 2us 1us 5V 15.748KHz 0V 2us 8us 5V 15.748KHz 0V 0.5us 5V 15.748KHz 0V 10us 63.5us KA7302D CDS, AGC, GAMMA CORRECTION AMP CHARACTERISTIC GRAPHS 40 GC(1, 2, 3) Gain [ dB ] 20 AGC Gain [ dB ] 30 20 10 0 10 -10 0 1 2 3 5 4 1 2 3 4 5 GC(1, 2, 3) CONT. VOLTAGE [ V ] AGC CONT VOLTAGE [ V ] Y - γ OUTPUT 2 1 Y - γ CONT.=1.5 V Y - γ CONT.=0.0 V Y - γ CONT.=5.0 V 0 2.5 1.25 Y - γ INPUT 3.75 KA7302D CDS, AGC, GAMMA CORRECTION PACKAGE DIMENSION 30-SSOP-375 unit:mm