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CML Microcircuits
COMMUNICATION SEMICONDUCTORS
CMX608/CMX618/ CMX638
RALCWI Vocoders
D/608_18_38/11 September 2014
Features
Near Toll Quality RALCWI Coding Algorithm
Multiple Bit Rate Modes: 2400 or 2750 bps 3600 bps with FEC Enabled
4-bit Viterbi Soft Decision Decoding
Integrated Audio CODEC (CMX618/CMX638 only)
Integrated Input and Output Channel Filters
20ms, 40ms, 60ms and 80ms Packet Lengths
No Licensing or Royalty Payments
Ancillary Audio Functions: Voice Activity Detector Comfort Noise Generator DTMF and Single Tone Regeneration
1.8V Low Power Operation, 3.