Preliminary KA7307D CDS/AGC GENERAL DESCRIPTION 20 - SOP - 300 The KA7307 is a bipolar monolithic integrated circuit for CCD Color Video Camera, and then if provides functions of Correlated Double Sampling, Automatic Gain Control, Window Function, and Iris Amplifier Gain Control. FEATURES . Correlated Double Sampling (CDS) . Automatic Gain Control (AGC) . Low-pass-filter and Sample-and-Hold circuit after AGC for external A/D converters . Window Function . Iris Amplifer Gain Control . + 5V Single power supply . Low power < 330mW ORERING INFORMATION Device KA7307D Package 20-SOP-300 Operating Temperature - 20°C ~ + 75 °C DGND1 XSHP XSHD DVCC CLP4 CLP1 PBLK WND XRS DGND2 BLOCK DIAGRAM 20 19 18 17 16 15 14 13 12 11 IRISCAP - CLP COMP1 + GC1 - BLK WND COMP2 + SH1 IRIS CONT CLP1 AGCCAP CLP SH2 PBLK AGC SH3 LPF AGC S/H BLK XRS 7 8 9 10 AGND AGC CONT 6 AGC OUT AVCC 5 AGC CAP 4 IRIS OUT 3 IRIS CAP 2 IRIS CONT 1 DATA IN XSHD PG IN XSHP VID-97-D002 February 1997 1 Preliminary KA7307D CDS/AGC PIN DESCRIPTIONS No. 1 Symbol PG IN I/O I Pin Voltage Description Black Level 2.3V ~ 2.9V CCD Signal Input 2 DATA IN I ( Typ. : 2.6V ) 3 AVCC I Typ. : 5.0V Supply Voltage 4 AGC CONT I OV ~ 5V AGC Gain Control 5 IRIS CONT I GAIN CONTROL IRIS Gain Control 6 IRIS CAP O Black Level A Pin is used to attach 2.05V ~ 2.55V IRIS Clamp Capacitor ( Typ. : 2.27V ) Black Level 7 IRIS OUT O IRIS Signal Output 1.2V ~ 1.7V Signal Max. : > 2.0Vp-p ( Typ. : 1.45V ) Black Level 8 AGC CAP O A Pin is used to attach 2.15V ~ 2.65V IRIS Clamp Capacitor ( Typ. : 2.37V ) Black Level 9 AGC OUT O AGC Signal Output 1.2V ~ 1.7V Signal Max. : > 2.0Vp-p ( Typ. 1.45V ) 10 AGND O - Analog Ground 11 DGND2 O - Digital Ground 2 12 XRS I 13 WND I H : > 4V Sample - and - Hold Sig. Input L : < 1V ( Active Low ) H : > 4V L : < 1V High Speed Pulse Input Pin for WINDOW ( Active Low ) Pre - Blanking Pulse 14 PBLK I Input Pin ( Active Low ) 15 CLP1 H : > 4V L : < 1V I Clamping Pulse 1 Input Pin ( Active High ) Clamping Pulse 4 16 CLP4 I Input Pin ( Active High ) 17 DVCC I 18 XSHD I H : > 4V High Speed Pulse Input L : < 1V Pin for Sampling / Hold ( Active Low ) 19 XSHP I 20 DGND1 O Typ. : 5.0V - Supply Voltage Digital Ground 1 VID-97-D002 February 1997 2 Preliminary KA7307D CDS/AGC ABSOLUTE MAXIMUM RATINGS( Vcc = 5.0 V , Ta = 25°C ) Characteristics Symbol Value Unit Vcc 7 V Input Voltage Vi 4.75 ~ 5.25 V Power Dissipation Pd 530 mW Operating Temperature Topr - 20 ~ + 75 °C Storage Temperature Tstg - 65 ~ + 150 °C Supply Voltage ELECTRICAL CHARACTERISTICS( Vcc = 5.0 V , Ta = 25°C ) Characteristics Supply Current Symbol ICC CONT MIN GC1C MIN CONT MAX GC1C MAX GC1 Iris out maximum voltage swing CG1 Amp. CMRR CDR CMR1 CONT MIN AGC1 MIN CONT MAX AGC1 MAX AGC AGC Amp. CMRR AGC out maximum voltage swing CMRA Test Condition ALL PIN : OPEN Iris out / Data in Iris CONT = 0.0V, WND >4.0V Iris out / Data in Iris CONT = Vcc, WND > 4.0V Dta in = 400mVp - p GC1 Gain max. 15.75KHz AGC out / Data in AGC CONT = 0.0V AGC out / Data in AGC CONT = Vcc 15.75KHz Min Typ Max Unit 23 41 59 mA - -6 -4 dB 14 18 - dB 2.0 2.5 - V - - 50 - 36 dB - 6 8 dB 38 41 - dB - - 50 - 36 dB 2.0 2.5 - V - ADR Dta in = 100mVp p AGC Gain max. VID-97-D002 February 1997 3 Preliminary KA7307D CDS/AGC OPERATING PRINCIPLES & METHODE CCD OUT PUT SIGNAL SAMPLE & HOLD XSHP GC1 XSHD IRIS CONT CLAMP & BLK CLP1 IRIS OUT PBLK 1. SIGNAL FORMAT Precharge Level CCD OUTPUT SIGNAL Reset Noise Level Data Level Data Level 0 ~ 600mVpp XSHP ( Precharge Level S/H Pulse ) H>4V L<1V XSHD ( Data Level S/H Pulse ) H>4V L<1V OUT PUT Level 0 ~ 2.4Vpp IRIS OUT AGC OUT VID-97-D002 February 1997 4 Preliminary KA7307D CDS/AGC 2. TIMING CHART FOR TESTING DATA IN Input Signal 20 ~ 600mVpp 7us 2us H>4V L<1V CLP1. CLP4 H>4V L<1V PBLK. WND Output Signal 10mVpp ~ 2.9Vpp OUT PUT ( IRIS OUT AGC OUT ) 16us 16us 32us 32us VID-97-D002 February 1997 5 Preliminary KA7307D CDS/AGC CHARACTERISTICS GRAPH ( Standard Control Characteristics ; ( Vcc = 5.0 V , Ta = 25°C ) Input Control Voltage : 0 ~ 5V Output Gain : - 6dB ~ 18dB IRIS OUT / DATA IN GAIN [ dB ] 30 20 10 0 -10 0 1 2 4 3 5 IRIS CONT VOLTAGE [ V ] Input Control Voltage : 0 ~ 5V Output Gain : 6dB ~ 41dB AGC OUT / DATA IN GAIN [ dB ] 50 40 30 20 10 0 0 1 2 3 4 5 AGC CONT VOLTAGE [ V ] VID-97-D002 February 1997 6 Preliminary KA7307D CDS/AGC 17 A SL SW6 SR 16 SW5 SL 15 A SR SL SW4 14 13 BLK WND SR DGND2 18 SR XRS SW7 A A SL WND SR PBLK 19 + CLP4 SW8 A DVCC 20 SL XSHD SR XSHP DGND1 SL A CLP1 A 10uF TEST CIRCUIT 12 11 IRISCAP CLP COMP1 + GC1 COMP2 + IRIS CONT AGCCAP CLP1 SH1 CLP SH2 XSHD XSHP AGC SH3 LPF AGC S/H BLK XRS VID-97-D002 February 1997 AGND V 10 AGC OUT 9 AGC CAP 0.1uF V 8 IRIS OUT 7 IRIS CAP A 0.1uF AVCC 6 IRIS CONT A SR A + - 5 AGC CONT SR SL V 4 A 10uF SW2 SW1 3 DATA IN SL 0.1uF V 2 0.1uF PG IN 1 7 Preliminary KA7307D CDS/AGC APPLICATION CIRCUIT TIMMING GENERATOR KS7213 KA7307D 0.1 uF CCD I. C DGND1 20 XSHP 19 AVCC XSHD 18 AGC CONT DVCC 17 CLP4 16 1 PG IN 2 DATA IN 3 4 5 IRIS CON 0.1 uF 5.0 V 5.0 V 0~5V 0.1uF 6 IRIS CAP CLP1 15 7 IRIS OUT PBLK 14 8 AGC CAP WND 13 9 AGC OUT XRS 12 DGND2 11 0.1 uF DL 10 AGND 0.1 uF IRIS DET. 10 bit D/A DCP KS7306 Video Out BUF & CLAMP MICOM 10 bit D/A PACKAGE DIMENSION VID-97-D002 February 1997 8 Preliminary KA7307D CDS/AGC 20-SOP-300 unit: mm VID-97-D002 February 1997 9