As a members of the CML DuraTALK family of digital voice products, the CMX618/CMX638 are flexible, high integration, high performance, RALCWI Vocoder, offering near toll-quality voice at very low bit rates.
A Forward Error Correction (FEC) engine provides optimum performance in real life applications.
The RALCWI Vocoder comprises four independent functions which are selectable by the host: Voice Encoder, FEC Encoder, Voice Decoder and FEC Decoder.
The CMX618 includes an integrated voice CODEC, offering a complete analogue voice to low bit rate vocoded data function, with integrated channel filters, which removes the need for external components.
Both devices operate from a dual power supply (1.8V and 3.3V) and are available in both 48-pin LQFP (L4) and 48-pin VQFN (Q3) packages.
New features or enhancements to aid Vocoder operation are available. Function Add-ins currently available:
Devices are available through our Distributor Network.
|The PE0003 Evaluation Kit Interface Card is a global interface system for use with evaluation kits for CML’s new generation ICs, including FirmASIC™ based products. This greatly simplifies the approach to the evaluation and design-in process.
|The EV6380 Evaluation Kit allows rapid and full evaluation of the CMX638 and can also be used in half-duplex mode to demonstrate the operation of the CMX618.
Q: My EV6180 Evaluation Kit will not operate when JP2 is fitted. Why is this?
A: JP2 connects the hard-reset circuit on the EV6180 to pin 16 of the C-BUS connector J3. On the PE0003, this pin is set to input by default and a weak pull-up applied. It is possible that the reset signal will be applied until C-BUS pin 16 is actively driven low by a PE0003 script. Removing JP2 disconnects the hard-reset circuit from C-BUS pin 16. The power-on reset and the C-BUS General Reset command will function as normal with JP2 removed.
EV6380 Hi-Res Schematic
EV6380 Hi-res schematic for board version C, MOD state 2. – Download
Full-duplex speech demonstration on the EV6380 Evaluation Kit. – Download