CML looks to prevent security breaches in audio systems

Based on the company’s proprietary FirmASIC technology the IC can rapidly switch between clear and scrambled voice modes via a programmable frequency inversion point, with minimal delay being experienced. Furthermore, its completely independent Tx and Rx signal paths mean that this IC is capable of full duplex operation.

Using ithe FirmASIC technology, a Function Image is generated in which the CMX7158’s functional parameters are defined. This is loaded to the system upon power-up/device initialisation - either from the system’s host microcontroller (across the C-BUS interface) or through an attached serial flash memory. Dual-tone multi-frequency (DTMF) encode/decode, Selcall signalling and VOX detection on both channels are among the other main features encompassed.