Ideal for wireless digital voice/audio communications in both consumer and industrial applications, the CMX649 adaptive delta modulation (ADM) voice codec offers advanced error tolerant voice coding and a power consumption of 1.9 mA at 2.7 V, The codec offers full-duplex ADM, continuously variable slope delta modulation (CVSD) and PCM operating modes.
Operating modes and algorithms are user-configurable, so as to select the best data rate and voice quality for each application. Additional features include a C-bus serial interface, a programmable voice activity detector (VAD) with adjustable threshold level and attack/decay times, a transcoder to convert between different voice coding schemes and a selectable digital scrambler for coded signal privacy and efficiency in modulation. The part is available in compact 20-pin plastic SOIC and TSSOP packages. (Less than $3 ea/prod qty available now.)
CML Microcircuits , Essex , England
Sales 011-44(0)-1621-875500
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