NE571 Compandor Subscriber – Datasheet

The NE571 is a versatile low-cost dual gain control circuit in which either channel may be used as a dynamic range compressor or expander. Each channel has a full-wave rectifier to detect the average value of the signal, a linearized temperature-compensated variable gain cell, and an operational amplifier. The NE571 is well suited for use in cellular radio and radio communications systems, modems, telephone, and satellite broadcast/receive audio systems.

NE571 Pinout

NE571 Pin Configuration

Pin No	Pin Name	Description
1	RECT CAP 1	Rectifier Capacitor Pin 1
2	RECT IN 1	Rectifier Input Pin 1
3	AG CELL IN 1	Accuracy Gain Cell Pin 1
4	GND	Ground Pin
5	INV-IN 1	Inverting Input Pin 1
6	RES, R3 1	Resistor, R3 Pin 1
7	OUT 1	Output Pin 1
8	THD TRIM 1	Threshold Trim Pin 1
9	THD TRIM 2	Threshold Trim Pin 2
10	OUT 2	Output Pin 2
11	RES, R3 2	Resistor, R3 Pin 2
12	INV-IN 2	Inverting Input Pin 2
13	VCC	Supply Voltage Pin
14	AG CELL IN 2	Accuracy Gain Cell Pin 1
15	RECT IN 2	Rectifier Input Pin 2
16	RECT CAP 2	Rectifier Capacitor Pin 2

NE571 Features

• Complete compressor and expander in one IC chip
• 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

Application

• Cellular radio
• High level limiter
• Low level expander noise gate
• Dynamic filters
• CD Player

You can download this datasheet for NE571 Compandor Subscriber – Datasheet from the link given below: