BH3810

Multimedia ICs Vocal fader IC with input selector BH3810FS The BH3810FS is a vocal fader IC that is serial control compatible. It has mode switching that also includes a voice multiplexing mode, a five-input selector, a gain selector and other such features, which can all be controlled serially. Eight open-collector terminals and two tri-state terminals are provided on the chip to facilitate control by other ICs. Applications Component stereo systems, CD radio cassette players, TVs and car stereos. Features 1) Built-in low-pass filter can perform vocal fader function (erasing of vocals from commercially available music software) using just one chip. 2) Serial control can be used to switch between vocal fader, through, multiplex, and mute modes. 3) Built-in gain selector allows selection of gain from 6dB to 20dB in 2dB steps. 4) Five-channel input selector. 5) Mic. mixing amplifier with mute function. Key controller input also provided. 6) SSOP-A32 pin package. Absolute maximum ratings (Ta = 25°C) Parameter Applied voltages Power dissipation Operating temperature Storage temperature Maximum open collector voltage Symbol VDD VEE Pd Topr Tstg VOP Limits + 5.5 – 4.5 850∗ – 40 ~ + 85 – 55 ~ + 125 14 Unit V mW °C °C V ∗ Reduced by 8.5mW for each increase in Ta of 1°C over 25°C , when mounted on a 50mm × 50mm × 1.6mm board. Recommended operating conditions (Ta = 25°C) Parameter Power supply voltage Symbol VDD VEE Limits 4.0 ~ 5.3 – 4.3 ~ – 3.0 Unit V V 1 Block diagr...