器件名称: MC33111D
功能描述: LOW VOLTAGE COMPANDER
文件大小: 176.64KB 共12页
简 介:Order this data sheet by MC33111/D
MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
MC33111
Advance Information Low Voltage Compander
The MC33111 contains two variable gain circuits configured for compressing and expanding the dynamic range of an audio signal. One circuit is configured as an expander, and the other is configured as a compressor. Each circuit has a full wave rectifier to provide average value information to a variable gain cell located in either the input stage or the feedback path. An internal temperature stable bandgap reference provides the necessary precision voltages. Included in the MC33111 are controls for muting each section independently, and for passthrough of both. Two uncommitted op amps are available for peripheral functions. The MC33111 will operate from a supply voltage of 3.0 V to 7.0 V, and over a temperature range of – 40 ° to + 85 ° C. It is designed to accommodate a 60 dB dynamic range; from – 40 dB to + 20 dB referenced to 100 mVrms. Applications include cordless telephone, CBs, walkie-talkies, and most voice RF links, and any application where an improvement in the signal to noise ratio is desired. Other applications include speakerphones and voice activated intercoms, dictating machines, etc.
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LOW VOLTAGE COMPANDER
SILICON MONOLITHIC INTEGRATED CIRCUIT
Operating Supply Voltage: 3.0 V to 7.0 V Output Voltage Swing = 2.8 Vp-p with VCC = 3.0 V No Precision External Components Required 60 dB Dynamic Range Compressed to 30 dB, Re-ex……