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NE571 Datasheet(PDF) 2 Page - NXP Semiconductors |
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NE571 Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 11 page Philips Semiconductors Product specification SA571 Compandor 2 1997 Aug 14 853-0812 18285 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. 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 PIN CONFIGURATION RECT CAP 1 RECT IN 1 AG CELL IN 1 GND RECT CAP 2 AG CELL IN 2 RECT IN 2 VCC D, and N Packages1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 15 INV. IN 1 RES. R3 1 OUTPUT 1 THD TRIM 1 INV. IN 2 RES. R3 2 OUTPUT 2 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 ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG # 16-Pin Plastic Small Outline Large (SOL) -40 to +85 °C SA571D SOT162-1 16-Pin Plastic Dual In-Line Package (DIP) -40 to +85 °C SA571N SOT38-4 BLOCK DIAGRAM VARIABLE GAIN ∆G IN RECT IN VREF THD TRIM R2 20k R1 10k RECT CAP R3 R3 20k R4 30k 1.8V INVERTER IN OUTPUT + – RECTIFIER SR00676 Figure 2. Block Diagram |
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Similar Description - NE571 |
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