AN2050FB PANASONIC | Alldatasheet

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Technical content

44-Pin QUADFLAT Package (QFP044-P-1010) Unit:mm 33 23 11 1 10.0–0.3 10.0–0.3 0.80.35–0.1 12.3–0.4 2.0–0.2 0.9–0.250.9–0.25 + 0.1– 0.050.15 12.3–0.4 (0.55) 0.1–0.1 GND (DS) 34 33 35 32 31 29 26 28 27 24 4 21 5 6 22 25 1114910121331521 GND GND V CC (Video) V CC (DS) Clamp S.H ALC DET ALC G Amp ALCAmp Clamp WHD MIX AGC Flicker DC F ··B Pulse Sep. Vref Video out V.Sync Mix Low Clip C.BLK Mix H.Clip Chara. Mix Chara. Clamp DC F·B Amp Mix AP Clamp AP Clip Y.Γ Clamp AP Amp AGC OP DC F·BY· Γ Y·Γ Cont AGC Det.Clamp Vref Chara. SW n Overview The AN2050FB is an integrated circuit specified to the monochrome CCD image element which is em- ployed 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. n Features

  • 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 AN2050FB CCD Monochrome Video Camera Signal Processor IC n Block Diagram

Parameter Symbol Rating Unit V CC ICC PD Topr Tstg Power dissipation Supply current Supply voltage Operating ambient temperature Storage temperature 5.5 280 –20 to +75 –55 to +125 V mW mA54 ■ Absolute Maximum Ratings (Ta=25˚C) V OB2 G AGC1 OB control (1) OB control (2) AGC amp gain (1) –85 130 –65 170 –45 210 mV PP mV PP Parameter min Condition typ max UnitSymbol G AGC2AGC amp gain (2) 16 19 22 dB V ALCALC DET output 500 600 700 mV PP G Γ1Γ circuit gain (1) 660 800 940 mV PP V OB1 35 55 75 mV PP G Γ2Γ circuit gain (2) 550 mV PP V AGC/DETAGC DET output 400 480 560 mV PP G CL1AP clip (1) 0.9 1.1 1.4 V PP G CL2AP clip (2) –10 dB G Y ΓY Γ amp gain 1.1 1.3 1.5 V PP I25Supply current (1) 26.5 31 35.5 mA I33Supply current (2) 9.5 14 18.5 mA V CP1CP1 pulse separation level 3.4 3.8 4.2 V V WHDWHD pulse separation level 2.15 2.55 2.95 V V WBLWBL pulse separation level 0.4 0.8 1.2 V V CP2CP2 pulse separation level 3.1 3.5 3.9 V V BLK V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5V V CC =5VBLK pulse separation level 0.6 1 1.4 V ■ Electrical Characteristics (Ta=25˚C) Parameter Symbol Range Operating supply voltage range V CC 4.5V to 5.3V ■ Recommended Operating Range (Ta=25˚C)

F·B Clamp AGC DetCont Y·Γ AGC Ope-amp. AP Amp. AP Clamp AP Clip Y·Γ Clamp MIX Amp DC F·B Chara. MIXH Clip C. BLK MIX Low Clip V SYNC MIX Video OutVrefPulse Sep. 22kΩ 2.4kΩ + – 1kΩ LPF 1kΩ Vref 5V AGC Auto Manual 4.7kΩ 390kΩ 4.7kΩ 1.2kΩ 47µF 47µ F 30kΩ 10kB 0.047µF 33kΩ 4.7µF 12kΩ 10kΩ 10kB 1.6M Ω 1kB 1kΩ Vref (–1.8V) 3kΩ to 6kΩ DL 0.047µF DL Vref 0.047µF 0.1µF 0.047µF 0.047µF V CC (Video) V CC5VPED12kΩ 4kΩ Sig out 47µF Sync CP1 WHD WBLKWBLK 10kΩ WHD 10kΩ CP1 10kΩ BLK CP2 BLK CP2 Vref ALC Op-amp. ALC Op-amp. For Iris Driving Buffer 0.047µF DS PED Setting Sig IN 100pF CP (DS) SP3 Vcc 528 6 22 DC F·B 24 4 S.H R Amp Y·Γ Clamp37 Chara. SW Chara. Clamp n Application Circuit

2.5V 3.3V 1.6V CP1 WHD WBL 320mV PP 2.5V 1.8V Clamp IN 480mV PP 2V PP DC 1.8V 2.5V 350mV PP 1.8V 580mV PP Reset pulse Signal 100ns 100ns 250mV PP1.8V 250mV PP1.8V 800mV PP 800mV PP 1.8V Pin No. Pin name Typ. waveform Pin No. Pin name Typ. waveform Pulse input 1 Pulse input 2 GND AGC DET AGC op. amp. input AGC op. amp. output DC control Y γ input PED GND Character input SYNC input Video output V CC (Video) V ref Aperture input Aperture amp. output Aperture clip Aperture amp. input + Aperture amp. input – γ control γ output DC control γ input V CC Flicker control AGC output AGC control AGC input PED setting DS amp. output DC output V CC (DS) Clamp pulse input Sample hold pulse input GND (DS) 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 Open 1.8V ■ Pin Descriptions