CMX7262 - Consumer Microcircuits Limited

CMX7262 TWELP Vocoder

The CMX7262 TWELP Vocoder IC is a device supporting a Tri-Wave Excited Linear Prediction (TWELP) vocoder functionality in a single chip. The CMX7262 is capable of encoding analogue voice into TWELPencoded frames. It is capable of decoding TWELP-encoded frames back to analogue voice. Input and output signals may be passed through the C-BUS interface, or the o.

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 naturalsounding 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 Ch.