AN3664NFB

ICs for VCR www.datasheet4u.com AN3664NFB Single chip audio signal processing IC for HiFi VCR s Overview The AN3664FNB is a single chip IC which performs HiFi VCR stereo audio signal processing. It incorporates the PROM to maintain an adjusting value, enabling a complete adjustment-free use. 14.0±0.3 12.0±0.2 36 37 25 24 (1.6) Unit: mm s Features High precision and adjustment-free fO , recording/playback level and playback BPF by adoption of built-in Zener zap PROM Enhanced cost performance due to incorporating external parts. 48 13 (1.6) 0.80 0.1±0.1 s Applications HiFi VCR Seating plane +0.10 0.15 – 0.05 0.35 +0.10 – 0.05 1.95±0.20 1 12 12.0±0.2 14.0±0.3 (1.0) 0° to 10° 0.5±0.2 QFH032-P-0707A 1 www.datasheet4u.com 2 AUX in (L) 5 BS1 in (L) 7 TV in (L) 4 3 2 1 BS2 in (L) 6 8 9 CCA out (L) 12 NR ref. (L) 11 10 S/H Peak det. Det. LPF Log F0−adj. L-channel DAC (NTSC/PAL) VREF1 1/2VCC (5 V) Input SW AN3664NFB s Block Diagram Emph. (L) 13 48 N.C. 14 47 Log VU out (L) SW noise VCO PB Rec. LPF Audio limit PB LPF PC PB trap LPF Rec. Mix. Logic Amp. Amp. 10 kΩ SW1 SW4 CCA 12.9 kΩ 10 kΩ EVOL SW2 /AGC VU out (R) Rec. FM out (Mix.) 15 (commonly used for BPF monitor) 46 I2C clock 16 Line out (L) 45 Line out (R) 44 43 I2C data 17 L-ch. BPF BS2 Hi-Fi Liner SW Mix Normal R-ch. BPF FM Lim. Mute BS1 SW16 L L R SW17 Audio FF input 18 RFC R SW19 SW22 L+R L R Det. Nor. rec. in 42 41 RF conv. out 40 RF conv. AGC det. 39 V (12 V) CC 38 Normal out 37 Normal ...