AN2108NFHQ

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