SA571

INTEGRATED CIRCUITS SA571 Compandor Product specification IC17 Data Handbook 1997 Aug 14 Philips Semiconductors Philips Semiconductors Product specification Compandor SA571 DESCRIPTION The SA571 is a versatile low cost dual gain control circuit in which either channel may be used as a dynamic range compressor or expandor. Each channel has a full-wave rectifier to detect the average value of the signal, a linerarized temperature-compensated variable gain cell, and an operational amplifier. The SA571 is well suited for use in cellular radio and radio communications systems, modems, telephone, and satellite broadcast/receive audio systems. PIN CONFIGURATION D, and N Packages1 RECT CAP 1 RECT IN 1 AG CELL IN 1 GND INV. IN 1 RES. R3 1 OUTPUT 1 THD TRIM 1 1 2 3 4 5 6 7 8 16 RECT CAP 2 15 RECT IN 2 14 AG CELL IN 2 13 VCC 12 INV. IN 2 11 RES. R3 2 FEATURES Complete compressor and expandor in one IChip Temperature compensated Greater than 110dB dynamic range Operates down to 6VDC System levels adjustable with external components Distortion may be trimmed out Dynamic noise reduction systems Voltage-controlled amplifier 10 OUTPUT 2 9 THD TRIM 2 TOP VIEW NOTE: 1. SOL - Released in Large SO Package Only. SR00675 Figure 1. Pin Configuration APPLICATIONS Cellular radio High level limiter Low level expandor—noise gate Dynamic filters CD Player TEMPERATURE RANGE -40 to +85°C -40 to +85°C ORDER CODE SA571D SA571N DWG # SOT162-1 SOT38-4 ORDERING INFOR...