ICs for Video Camera AN2108NFHQ AN2108NFHQ Camera Signal Processing(CDS + AGC + Gamma) ■ Overview Unit : mm The AN2108NFHQ is a single-chip IC that processes video-signal of CCD-camera and has functions of CDS, AGC, pre-knee and pre-aperture circuits. This CDS circuit is capable of high speed sampling of max. 30 MHz to support high-resolution CCD-camera systems (XGA, SXGA, etc.). AGC and OB level(black level) adjustments can be controlled with on-chip 8-bit DAC. 37 ■ Features (0.75) 25 (0.75) 7.00±0.20 9.00±0.40 24 0.50 12 +0.10 0.20–0.05 SEATING PLANE +0.10 1 0.15–0.05 13 (0.625) 1.40±0.10 1.70 max. 48 (0.625) 0.10±0.10 • Capable of high speed sampling of max. 30 MHz • Capable of controlling OB level at the last output stage • Capable of switching between 2 modes of pre-knee characteristic • On-chip DAC(8-it, 15-channel)for adjustment (11-channels for internal and external outputs) 9.00±0.40 7.00±0.20 36 (1.00) 0 to 10˚ 0.50±0.20 ( ) : Reference value LQFP048-P-0707 ■ Applications • Digital still cameras, Camcorders, PC cameras, Monitoring cameras, CCD camera modules, CCD digital camera systems 1 AN2108NFHQ ICs for Video Camera 25 V CC2 ch.5 26 27 PBLK In DS1 37 28 ch.5 29 30 31 32 33 34 35 36 DS2 VCC1 Mode SW ■ Block Diagram P.Sepa. 24 CPOB In Test 9 dB ch.5 GND1 38 CCD Out In 39 40 S/H 3dB S/H BIAS ch.1 Knee Con. VREFM 1.8V 560 Ω γ ch.2 19 GC VCC3 43 18 ch.3 44 DC Cont. Serial Control 15-ch DAC 46 2 15 14 VDD VREFB 1.0V 12 DAC ch.15 Out 11 DAC ch.11 Out 10 DAC ch.10 Out 9 DAC ch.12 Out 8 DAC ch.9 Out 7 DAC ch.8 Out LOAD 6 5 SCLK DI 4 13 3 DAC ch.1 Out 1 (UN-Buffer) 48 VREFH 3.0V 2 47 17 16 GND3 45 DAC ch.7 Out 21 20 DL GC 42 DAC ch.6 Out 22 VREFMH 2.75V 41 23 GND2 DC Cont. GC A/D Out OB Control DAC ch.4 Out DAC ch.13 Out DAC ch.14 Out ICs for Video Camera AN2108NFHQ ■ Pin Descriptions Pin No. Description Pin No. Description 1 DAC CH1 OUT(UN-Buffer) 25 VCC2 2 VDD OUT(3.5 V) 26 AGC OUT 1 3 VSS 27 AGC OUT 2 4 DI 28 PBLK IN 5 SCLK 29 AGC DET 6 LOAD 30 AGC IN 7 DAC ch.8 OUT 31 Trap OUT 8 DAC ch.9 OUT 32 Gamma MODE SW 9 DAC ch.12 OUT 33 AGC REF OUT 10 DAC ch.10 OUT 34 CDS OUT 11 DAC ch.11 OUT 35 VCC2 12 DAC ch.15 OUT 36 Sampling Puls DS2 IN 13 DAC ch.14 OUT 37 Sampling Puls DS1 IN 14 DAC ch.13 OUT 38 GND 1 15 DAC ch.4 OUT 39 CCD OUT IN 16 OB Control 40 VREFMH OUT(2.7 V) 17 A/D OUT 41 Gamma OUT 18 Sub Amp. DET 42 Pre-aperture DL IN 19 Sub Amp. IN 43 VCC3 20 Pre-aperture OUT 44 DAC ch.6 OUT 21 VREFM OUT(1.8 V) 45 GND 3 22 Gamma IN 46 DAC ch.7 OUT 23 GND 2 47 VREFH OUT(3.0 V) 24 CPOB IN 48 VREFB OUT(1.0 V) 3 AN2108NFHQ ICs for Video Camera ■ Absolute Maximum Ratings Parameter Symbol Rating Unit VCC 5.5 V ICC mA PD 226 mW Topr −20 to +7.5 °C Tstg −55 to +125 °C Supply voltage Supply current Power dissipation *2 Operating ambient temperature Storage temperature *1 *1 Note) *1 : Ta = 25 °C, except storage temperature and operating ambient temperature. *2 : The above power dissipation shows the package power dissipation at Ta = 75 °C, in free-air. ■ Recommended Operating Range Parameter Supply voltage Symbol Range Unit VCC 4.5 to 5.1 V ■ Electrical Caracteristics at VCC = 4.8 V, Ta = 25 ± 2 °C Parameter Conditions Min Typ Max Unit ITOT VCC = 4.8 V 30 40 50 mA Reference voltage 1 VREF1 VCC = 4.8 V 3.3 3.6 3.9 V Reference voltage 2 VREF2 VCC = 4.8 V 2.9 3.0 3.1 V Reference voltage 3 VREF3 VCC = 4.8 V 2.65 2.75 2.85 V Reference voltage 4 VREF4 VCC = 4.8 V 1.7 1.8 1.9 V Reference voltage 5 VREF5 VCC = 4.8 V 0.9 1.0 1.1 V Pulse separation CPOB VCC = 4.8 V 1.1 1.4 1.7 V Sampling pulse threshold 1 VTH1 VCC = 4.8 V 1.15 1.45 1.75 V Sampling pulse threshold 2 VTH2 VCC = 4.8 V 1.15 1.45 1.75 V AGC frequency characteristic GFA 10 MHz Sine wave 300 mVPP −1.8 − 0.4 1.0 dB 46 60 7A Hex Circuit current 4 Symbol AGC level adjustment VADJ1 10 stair step 300 mVPP AGC output D-range VAG3 10 stair step 1.2 VPP 1080 1200 1320 mVPP AGC min. gain GAG4 10 stair step 1.2 VPP −3 −5 dB AGC max. gain GAG5 10 stair step 50 mVPP 21 24 dB Test signal adjustment VTE PBLK input C0 CE DF Hex Gamma frequency characteristic GFG 10 MHz Sine wave 300 mVPP −2.2 −1.0 0.2 dB Gamma characteristic 1 VGM1 10 stair step 600 mVPP 3rd stage Pin32 = GND 162 180 198 mVPP Gamma characteristic 2 VGM2 10 stair step 600 mVPP 6th stage Pin32 = GND −1.0 0 1.0 dB Gamma characteristic 3 VGM 10 stair step 600 mVPP 9th stage Pin32 = GND 80 130 mVPP 30 ICs for Video Camera AN2108NFHQ ■ Electrical Caracteristics at VCC = 4.8 V, Ta = 25 ± 2 °C(Continned) Parameter Symbol Conditions Min Typ Max Unit 1.22 2.02 3.82 dB 10 30 50 mVPP Gamma characteristic 4 VGM4 10 stair step 720 mVPP Pin32 = GND Gamma characteristic 5 VGM6 10 stair step 600 mVPP 9th stage Pin32 = GND Pre-aperture frequency characteristic GFG 10 MHz Sine wave 300 mVPP −1.6 − 0.4 0.8 dB Pre-aperture output D-range VPR3 10 stair step 800 mVPP 700 800 900 mVPP Pre-aperture gain 1 VPR5 9 MHz Sine wave 300 mVPP − 0.2 0.5 dB Pre-aperture gain 2 VPR4 9 MHz Sine wave 300 mVPP 5.0 7.0 dB Output amplifier frequency characteristic GFB 10 MHz Sine wave 300 mVPP −1.6 − 0.4 0.8 dB Output amplifier level adjustment VADJ2 10 stair step 300 mVPP 7B 90 A5 Hex Output amplifier output D-range VAD5 10 stair step 1000 mVPP 2200 2450 2700 mVPP Output amplifier gain 1 GAD1 10 stair step 300 mVPP 2.5 4.0 dB Output amplifier gain 2 GAD2 10 stair step 300 mVPP 13.5 15.5 dB Output amplifier gain 3 GAD4 10 stair step 600 mVPP −1.0 0 1.0 dB A/D Out output DC 1 VOFF1 Pin16 = 1.0 V −70 0 70 mV A/D Out output DC 2 VOFF2 Pin16 = 1.4 V −70 0 70 mV Total frequency characteristic GFT −3.5 −2.0 −0.5 dB 9 dB amplifier gain G1 Sampling pulse 10 MHz CDS input 300 mVPP 7.6 8.6 9.6 dB 5 6 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 · · · · · · · · · · 0 0 0 0 1 1 · · · · · · · · · · 0 0 0 0 1 1 · · · · · · · · · · 0 0 0 0 1 1 · · · · · · · · · · 0 0 0 0 1 1 · · · · · · · · · · 0 0 0 0 1 1 · · · · · · · · · · 0 0 0 0 1 1 · · · · · · · · · · 1 1 0 0 1 0 · · · · · · · · · · 1 0 1 0 CH15 CH14 CH13 CH12 CH11 CH10 CH9 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 Don’t Care D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Address Selection • DAC serial Data Format D6 Pre-apa. On/Off D5 Output DC control Output DC control Output DC control Output DC control Output DC control Output DC control Output DC control Output DC control Output DC control Output DC control AGC output pin signal switching D7 Output DC control Sub amp. gain control Pre-aperture gain control AGC gain control Function Test signal amplitude control D4 D0 AN2108NFHQ ICs for Video Camera ■ Electrical Caracteristics(Continned) ICs for Video Camera AN2108NFHQ ■ Electrical Caracteristics(Continned) DAC serial data timing CLK Data in D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 LD ch.5 AGC output pin signal switching D7 D6 Function 0 0 CDS signal output at AGC on 1 0 Test signal output at AGC on 1 1 Through output of test signal at AGC off Pre-apa. on/off D5 Function 0 Pre-aperture off 1 Pre-aperture on ■ Terminal Equivalent Circuit Pin No. Symbol 1 CH1 Equivalent Circuit Function 0.6 to 2.9 V 21 53.04 kΩ 30 kΩ 30 kΩ 30 kΩ 60 kΩ 60 kΩ 60 kΩ 1.7 kΩ 1 2 VDD 3.5 V 3 VSS 4 DI 5 SCLK 4 D 5 CK 4 D 5 CK 7 AN2108NFHQ ICs for Video Camera ■ Terminal Equivalent Circuit(Continued) Pin No. Symbol 6 LOAD Equivalent Circuit Function 6 7 CH8 0.15 to 3.60 V 200 Ω 7 40 kΩ 8 CH9 0.15 to 3.60 V 200 Ω 8 40 kΩ 9 CH12 0.15 to 3.60 V 200 Ω 9 40 kΩ 10 CH10 0.15 to 3.60 V 200 Ω 10 40 kΩ 8 ICs for Video Camera AN2108NFHQ ■ Terminal Equivalent Circuit(Continued) Pin No. Symbol 11 CH10 Equivalent Circuit Function 0.15 to 3.60 V 200 Ω 11 40 kΩ 12 CH15 0 to 3.6 V 200Ω 12 17kΩ 13 40kΩ CH14 0 to 3.6 V 200Ω 13 17kΩ 14 40kΩ CH13 0.15 to 3.60 V 200 Ω 14 40 kΩ 15 CH4 0.15 to 3.60 V 200 Ω 15 40 kΩ 9 AN2108NFHQ ICs for Video Camera ■ Terminal Equivalent Circuit(Continued) Pin No. Symbol 16 OB CONT Equivalent Circuit Function 36 µA 18 15µA 1.7 kΩ 1 kΩ 16 17 A/D OUT 1.0 to 1.4 V 190Ω 190Ω 24kΩ 1kΩ 17 6kΩ 18 SUB DET 190Ω 190Ω 36 µA 180 µA 1.7 kΩ 18 21 15 µA 1 kΩ 16 19 SUB AMP IN 1 kΩ 19 50 µA 20 PREAPA OUT 1.9 V 3 kΩ 190 Ω 20 190 Ω 10 ICs for Video Camera AN2108NFHQ ■ Terminal Equivalent Circuit(Continued) Pin No. Symbol 21 VREFM 22 GAMMA IN Equivalent Circuit Function 1.8 V 1 kΩ 22 30 µA 23 GND2 24 CPOB IN 19 µA 70 kΩ 24 14 kΩ 26 µA 1.7 kΩ 38.5 kΩ 25 VCC2 26 AGC OUT1 4.8 V 1.8 V 22.95 kΩ 190 Ω 26 27 10.5 kΩ 190 Ω 27 AGC OUT2 1.8 V 22.95 kΩ 190 Ω 26 27 10.5 kΩ 190 Ω 11 AN2108NFHQ ICs for Video Camera ■ Terminal Equivalent Circuit(Continued) Pin No. Symbol 28 PBLK IN Equivalent Circuit Function 50 µA 6.8 kΩ 30 kΩ 28 29 AGC DET 36 µA 29 15 µA 1 kΩ 1.7 kΩ 21 30 AGC IN 120 µA 30 37 µA 31 TRAP OUT 2.0 V 10 kΩ 1 kΩ 31 12 ICs for Video Camera AN2108NFHQ ■ Terminal Equivalent Circuit(Continued) Pin No. Symbol 32 MODE SW Equivalent Circuit Function 32 108 kΩ 33 AGC REF 1.2 V 100 Ω 33 200 µA 34 100 Ω CDS OUT 1.2 V 100 Ω 34 200 µA 35 VCC1 36 DS2 100 Ω 92 µA 200 µA 20 kΩ 36 5 kΩ 210 µA 15 kΩ 190 Ω 13 AN2108NFHQ ICs for Video Camera ■ Terminal Equivalent Circuit(Continued) Pin No. Symbol 37 DS1 Equivalent Circuit Function 92 µA 200 µA 20 kΩ 37 5 kΩ 210 µA 38 GND1 39 CCD IN 190 Ω 15 kΩ 73 µA 200 Ω 39 40 VREFMH 41 PREAPA OUT 2.75 V 1.9 V 190 Ω 560 Ω 190 Ω 41 14 ICs for Video Camera AN2108NFHQ ■ Terminal Equivalent Circuit(Continued) Pin No. Symbol 42 DL IN Equivalent Circuit Function 1 kΩ 42 43 VCC3 44 CH6 4.8 V 0.15 to 3.60 V 200 Ω 44 40 kΩ 45 GND2 46 CH7 0.15 to 3.60 V 200 Ω 46 40 kΩ 47 VREFH 3.0 V 48 VREFB 1.0 V 15 AN2108NFHQ ICs for Video Camera ■ Application Circuit Example(CCD Camera) AN2108NFHQ C C D CDS AGC Preknee Output amp. DAC for adjustment Clock Pulse ■ Usage Notes • Supply power to Pins 25,35 and 43 simultaneously. 16 Serial Data Load Pulse A/D Digital processor