描述 Description

The CMX7158 is a full-duplex, frequency inversion audio scrambler IC. This makes it a suitable device for use in multi-function audio systems as well as mobile and hand portable Cellular / Bluetooth / PMR / LMR radio systems.
The device provides additional functionality to facilitate implementation including DTMF and Selcall signalling, VOX detection on both channels and a MIC AGC.
There are flexible power saving modes and the production devices will be supplied as a?FirmASIC? Function Image format in a 48-pin VQFN Q3 package suitable for use with the PE0402 evaluation kit.
The device is realised using CML’s proprietary FirmASIC? component technology. A Function Image? that defines the devices functionality is loaded at power-up, either from a host controller connected over the C-BUS interface or an attached serial flash memory device.
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Devices are available through our Distributors below:

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特性 Features

? Fully independent Tx and Rx paths
? Programmable Inversion points
? MIC path AGC
? VOX detection
? DTMF encoder / decoder
? Selcall encoder / decoder
? Digital Gain Adjustment
? C-BUS Serial Interface to Host μController
? Bypass mode for HD Audio (up to 7kHz)
? Clear Mode
? Tx Enable and Rx Enable outputs
? Flexible Powersave Modes
? Low-power 3.0 to 3.6V Operation
? Small 48-pin Q3 VQFN Package

應(yīng)用 Application

? Cellular Radio
? Bluetooth communication headsets
? PMR/LMR radio systems
? Wireless access control systems

簡介

CMX7158屬于集成電路（IC）的音頻專用。由制造生產(chǎn)的CMX7158音頻專用音頻專用的半導(dǎo)體器件專為音頻信號的濾波、驅(qū)動、放大、轉(zhuǎn)換和接口而設(shè)計(jì)。特征包括功能、應(yīng)用、通道數(shù)、接口、電壓和規(guī)格。應(yīng)用包括音頻系統(tǒng)、汽車音頻、消費(fèi)類音頻、樂器、專業(yè)音頻、通信系統(tǒng)、電信系統(tǒng)、數(shù)字音頻、驅(qū)動器、前置放大器、信號混合、信號處理、語音觸發(fā)器解決方案和 10 Base-T。