An integrated circuit that contains both encoding PCM circuitry and decoding PCM circuitry is known as:
A) an analog to digital converter
B) a digital to analog converter
C) a modem
D) a codec

Question

Quizplus · Accepted Answer

A codec is a device or computer program that encodes or decodes a digital data stream or signal. In the context of integrated circuits, a codec refers to a device that can perform both encoding (analog to digital conversion) and decoding (digital to analog conversion) of signals, specifically for PCM (Pulse Code Modulation) audio. This makes it distinct from devices that only perform one of these functions, such as an analog to digital converter or a digital to analog converter.

An Integrated Circuit That Contains Both Encoding PCM Circuitry and Decoding