AN2050FB

AN2050FB CCD Monochrome Video Camera Signal Processor IC s Overview T he AN2050FB is an integrated circuit specified to the monochrome CCD image element which is employed in the monitoring video cameras, door phones, TV telephone sets, etc. The high frequency block and power block that are composed of 3-chip of DS signal processing, AGC. Γ compensating and NTSC output so far, are integrated into one chip to offer low cost. Unit:mm 10.0±0.3 33 23 0.8 0.35±0.1 12 34 22 44 • Frequency characteristics:10MHz (icompatible with the CCD image element of 330,000 pixels) • AGC range:18dB (improved SN ratio) • Operating supply voltage range:4.5V to 5.3V (typ. 5V) • Power consumption:typ. 225mW 0.15+ 0.1 – 0.05 0.9±0.25 s Features 0.1±0.1 1 11 12.3±0.4 (0.55) 44-Pin QUADFLAT Package (QFP044-P-1010) s Block Diagram VCC (DS) 34 33 35 32 31 29 Clamp WHD MIX ALC DET ALCG ALC Amp 26 28 27 24 4 AGC Det. Y·Γ Cont Y·Γ 21 5 – + AGC OP 6 22 25 37 30 38 Clamp S.H Amp Clamp AGC 0.9±0.25 2.0±0.2 12.3±0.4 20 19 17 23 16 18 8 7 10.0±0.3 Vref DC F·B AP Amp Flicker GND (DS) 36 39 41 – + 40 42 43 44 DC F ··B AP Clamp AP Clip H.Clip Chara. Mix Chara. SW Chara. Clamp Mix Y.Γ Clamp C.BLK Mix – + Pulse Sep. Vref Video out V.Sync Mix Low Clip Amp DC F·B 1 2 15 3 13 12 10 9 14 11 GND GND VCC (Video) s Absolute Maximum Ratings (Ta=25˚C) Parameter Supply voltage Supply current Power dissipation Operating ambient temperature Storage temperature Symbol VCC ICC PD Topr Tstg Rating 5.5 54 280 –20 to +75 –55 to +125 Unit V mA mW ˚C ˚C s Recommended Operating Range (Ta=25˚C) Parameter Operating supply voltage range Symbol VCC Range 4.5V to 5.3V s Electrical Characteristics (Ta=25˚C) Parameter OB control (1) OB control (2) AGC amp gain (1) AGC amp gain (2) ALC DET output Γ circuit gain (1) Γ circuit gain (2) AGC DET output AP clip (1) AP clip (2) YΓ amp gain Supply current (1) Supply current (2) CP1 pulse separation level WHD pulse separation level WBL pulse separation level CP2 pulse separation level BLK pulse separation level Symbol VOB1 VOB2 GAGC1 GAGC2 VALC GΓ1 GΓ2 VAGC/DET GCL1 GCL2 GYΓ I25 I33 VCP1 VWHD VWBL VCP2 VBLK VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V VCC=5V 1.1 26.5 9.5 3.4 2.15 0.4 3.1 0.6 1.3 31 14 3.8 2.55 0.8 3.5 1 400 0.9 480 1.1 Condition min 35 –85 130 16 500 660 typ 55 –65 170 19 600 800 max 75 –45 210 22 700 940 550 560 1.4 –10 1.5 35.5 18.5 4.2 2.95 1.2 3.9 1.4 Unit mVPP mVPP mVPP dB mVPP mVPP mVPP mVPP VPP dB VPP mA mA V V V V V s Application Circuit 9V 2.4kΩ 5V Vref 1kΩ AGC Auto Manual 5V 10kB Vref (–1.8V) 3kΩ to 6kΩ 1kΩ 10kB 1kB 5V 22kΩ + – 1kΩ LPF 47µ F 30kΩ 4.7kΩ 390kΩ DL 33kΩ 12kΩ 1.2kΩ 4.7µF 4.7kΩ – + – + CP Vcc (DS) SP3 47µF – + 10kΩ 0.047µF 34 100pF Sig IN 5V PED Setting 33 35 32 31 29 26 28 27 24 4 21 5 1.6MΩ 6 22 37 Clamp S.H R Amp Clamp AGC AGC Det AGC Ope-amp. 30 WHD MIX ALC DET Clamp Y·Γ Cont – + 38 ALCT ALC Amp Flicker Y·Γ 23 DS 0.047µF Vref 0.047µF 0.1µF 5V 0.047µF 5V – + DC F·B 36 DC F·B 5V – + AP Amp. 20 DL 0.047µF 5V 39 19 17 AP Clamp 16 41 ALC Op-amp. – + Vref AP Clip 18 40 Y·Γ Clamp 8 42 For Iris Driving – + ALC Op-amp. H Clip Chara. MIX MIX Buffer 43 44 C. BLK MIX Chara. SW Amp Pulse Sep. Vref Video Out V SYNC MIX Low Clip Chara. Clamp DC F·B 7 0.047µF 1 CP2 BLK CP2 CP1 WHD WBLK 10kΩ 10kΩ 10kΩ BLK 2 15 + – 47µF 3 13 10 12 12kΩ 5V 4kΩ 9 PED 5V 11 14 VCC (Video) 25 VCC 5V Sig out CP1 WHD WBLK 5V 0V Sync 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 Pin name Pulse input 1 Pulse input 2 GND 480mVPP Typ. waveform 5V 2.5V 5V 3.3V 1.6V CP2 Pin No. 23 Pin name DC control γ input VCC Flicker control AGC output AGC control AGC input PED setting DS amp. output DC output VCC (DS) Typ. waveform BLK CP1 WHD WBL 24 25 26 27 28 29 800mVPP 1.8V AGC DET AGC op. amp. input – AGC op. amp. output DC control Yγ input PED GND Character input SYNC input Video output VCC (Video) Vref Aperture input Aperture amp. output Aperture clip Aperture amp. input + Aperture amp. input – γ control γ output 350mVPP 1.8V DC 1.8V 2VPP 320mVPP Open 1.8V 800mVPP 1.8V 250mVPP 2.5V 30 31 32 1.8V 250mVPP 1.8V Clamp IN 33 34 35 36 37 38 39 40 41 42 43 44 100ns Clamp pulse input Sample hold pulse input GND (DS) 5V 0V 100ns 5V 0V Reset pulse DS input ALC DET DC control ALC op. amp. output ALC op. amp. input – ALC op. amp. input – ALC op. amp. input + ALC op. amp. output Signal 580mVPP 2.5V