Compandor with DC-coupled compressor

A compandor circuit uses a DC-coupled compressor to reduce the required IC package size to 8-pins. A delta gain stage and rectifier in the feedback path of the compressor circuit receive the AC and DC components of the compressed analog output signal Features of the delta gain stage and rectifier el...

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Bibliographic Details
Main Authors BADER; SCOTT K, SUSAK; DAVID M
Format Patent
LanguageEnglish
Published 14.09.1993
Subjects
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
ELECTRICITY
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Summary:A compandor circuit uses a DC-coupled compressor to reduce the required IC package size to 8-pins. A delta gain stage and rectifier in the feedback path of the compressor circuit receive the AC and DC components of the compressed analog output signal Features of the delta gain stage and rectifier eliminate the need for any AC-coupling capacitors in the feedback path thereby reducing the number of external components The remaining external components may be made smaller and manufactured as surface mount devices An expandor circuit receives a second compressed analog signal and expands it to full amplitude dynamic range.
Bibliography:Application Number: US19920898275