MC34014数据手册恩XP中文资料规格书

描述 Description

Overview The MC34014 is a Telephone Speech Network integrated circuit which incorporates adjustable transmit, receive, and sidetone functions, a dc loop interface circuit, tone dialer interface, and a regulated output voltage for a pulse/tone dialer.Also included is an equalization circuit which compensates gains for line length variations.The conversion from 2-to-4 wire is accomplished with a supply voltage as low as 1.5 volts.The MC34014 is packaged in a standard 18-pin (0.3\" wide) plastic DIP and a 20-pin SOIC package.
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特性 Features

•Transmit, Receive, and Sidetone Gains Set by External Resistors
•Loop Length Equalization for Transmit, Receive, and Sidetone Functions
•Operates Down to 1.5 volts (V+) in Speech Mode
•Provides Regulated Voltage for CMOS Dialer
•Speech Amplifiers Muted During Pulse and Tone Dialing
•DTMF Output Level Adjustble with a Single Resistor
•Compatible with 2-Terminal Electret Microphones
•Compatible with Receiver Impedances of 150 and Higher