AN6291S

ICs for Cassette, Cassette Deck AN6291, AN6291S Dual dbx II Noise Reduction System ICs s Overview The AN6291 and the AN6291S are the single chip ICs suitably developed for noise reduction of dbxII type and used for stereo operation. They can be used for U.S. sound multiplex TV. 1.8V low voltage operation enables to apply for battery-operated equipment to the Hi-Fi deck. Package is available for 22-pin DIL plastic and 22-pin SOP package. Equipment can be minitualized and high integration. AN6291 1 2 3 4 5 6 7 8 9 10 11 8.6±0.3 26.7±0.3 22 21 20 19 18 17 16 15 14 13 12 Unit : mm 0.5±0.1 4.7±0.25 0.35 – 0 + 0.1 .05 s Features Wide dynamic range : 110dB Low operating voltage : VCC (min.) =1.8V Fewer external components Adjustment : only one Low power consumption Wide operating supply voltage range : VCC (opr) =1.8V to 14V 1.0±0.25 3.3±0.25 3 ~15˚ 10.16±0.25 22-Lead DIP Package (DIP022-P-0400A) AN6291S 1.09 0.1±0.1 1 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 17 16 15 14 13 12 0.4±0.25 2.54 Unit : mm 0.15 0.925 2.0±0.2 15.3±0.3 1.27 0.3 7.2±0.3 9.4±0.3 22-Lead SOP Package (SOP022-P-0375) 1.2±0.25 AN6291, AN6291S s Block Diagram VCC 22 NC 21 VCC – OP Amp. ICs for Cassette, Cassette Deck RMS IN–B 20 TIMING –B 19 CCA IN–B 18 CAP 1–B 17 CAP 2–B 16 VOUT– B 15 ON – OFF –B I TIME ENCODE 14 13 12 RMS CCA + Current Source Timing Current Logic + RMS CCA OP Amp. – Bias GND SUB 1 ADJ 2 GND 3 RMS IN– A 4 TIMING –A 5 CCA IN– A 6 CAP 1– A 7 CAP 2– A 8 VO...