CMX7262 Datasheet, PDF (1/52 Pages) CML Microcircuits – Half-duplex operation

CML Microcircuits
COMMUNICATION SEMICONDUCTORS
CMX7262
TWELP Vocoder
D/7262_FI-1.x/4 August 2013
DATASHEET
Advance Information
7262 FI-1.x Professional Radio Vocoder
Features
 High-performance, low bit rate vocoder using
TWELP (Tri-wave Excited Linear Prediction)
technology
 Crystal clear voice and excellent performance
in real-life radio operation
 Excellent performance providing natural-
sounding speech and high quality non-voiced
signals such as emergency services sirens
 Half-duplex operation
 FEC built in to each vocoder frame
 Noise Reduction
 Integral voiceband audio codec (No external
DSP or codecs required)
 C-BUS host serial interface
o Streaming input and output registers to
streamline transfers and relax host service
latency
 Signal routing:
o Choice of input sources – C-BUS transfer
from host, analogue audio input
o Choice of output sources – C-BUS transfer
to host, analogue audio output
 Auxiliary functions
o GPIOs
o Two differential audio outputs
o Single-ended speaker output
o Analogue input/output gain adjustment
o Analogue input multiplexer
o Analogue output multiplexer
 Low power 3.3V operation with powersave
functions
 Small 64-pin VQFN package
Applications
 Half duplex digital radio systems
 Personal area network voice links
 Secure digital voice communications
 Secure door access
 Wireless PBX
 VoIP applications
 Digital Software Defined Radio (SDR)
Analogue In
Analogue Out
GPIOs
ADC
DAC
Digital
Filters
Digital
Filters
FIFO
Configuration
Function
Image™
CMX7262
Professional Radio Vocoder - TWELP
3.3V
C-BUS
Host
µC
3.3V
 2013 CML Microsystems Plc