SA576

INTEGRATED CIRCUITS SA576 Low power compandor Product specification IC17 Data Handbook 1997 Aug 14 Philips Semiconductors Philips Semiconductors Product specification Low power compandor SA576 DESCRIPTION The SA576 is a unity gain level programmable compandor designed for low power applications. The SA576 is internally configured as an expandor and a compressor to minimize external component count. The SA576 can operate at 1.8V. During normal operations, the SA576 can operate from at least a 2V battery. If the battery voltage drops to 1.8V, this part will still continue to function, however, turning on the part at a VCC of 1.8V requires two external resistors to bring VREF to half VCC. One resistor connects between VCC and VREF; the other connects from VREF to ground. A typical value for these external resistors is approximately 20k. A lower value can be used, but the power consumption will go up. The SA576 is available in a 14-pin plastic DIP and SO packages. PIN CONFIGURATION D and N Packages GCELLIN RECTIN EXPCAP EXPOUT 1 2 3 4 14 13 12 11 10 9 8 VCC COMPCAP2 COMPIN COMPCAP1 RECTIN GCELLIN COMPOUT VREF 5 IREF GND 6 7 SR00713 FEATURES Operating voltage range: 1.8V to 7V Low power consumption (1.4mA @ 3.6V) Figure 1. Pin Configuration APPLICATIONS Over 80dB of dynamic range Wide input/output swing capability (rail-to-rail) Low external component count ESD hardened Cordless telephone Consumer audio Wireless microphones Modems Electric or...