Audio-band scrambler
CML Microcircuits
Comprehensive audio processing facilities include complete voice-band processing, filtering, pre- or de-emphasis and frequency inversion scrambling. The audio processing feature operating order is selectable. Signal routing and filtering is included to assist host µC based signal encoding/decoding applications.
A 1200bps Digital Selcall (DSC)/Automatic Transmitter Identification System (ATIS) modem with protocol support and National Oceanic and Atmospheric Administration (NOAA) National Weather Radio (NWR) decoding are supported.
A DTMF encoder/decoder, a full complement of auxiliary ADCs and DACs and dual synthesised clock outputs are included in this low power PMR processor.
The device also has flexible powersaving modes and is available in 48-pin VQFN and LQFP packages.
