CMX882RF/IF射頻/中頻RFID的RFIC模塊規(guī)格書(shū)PDF中文資料

CMX882屬于RF/IF射頻/中頻RFID的RFIC模塊。由CML Microcircuits制造生產(chǎn)的CMX882RF 其它 IC 和模塊RF 其它 IC 和模塊產(chǎn)品系列包含各種獨(dú)特、專(zhuān)門(mén)或特定用途的產(chǎn)品，可與 RF、IF 和微波無(wú)線電應(yīng)用結(jié)合使用。示例包括 AM/FM 調(diào)諧器和接收器、偏置網(wǎng)絡(luò)、基帶處理器、計(jì)數(shù)器、數(shù)字可調(diào)電容器、下變頻器、倍頻器、移相器、前置分頻器、端接器、上變頻器、VCO 等。

Brief Description

CMX882, a full-function half-duplex audio and signalling processor IC for FRS and PMR446 type facilities

suitable for both complex and simple end-designs. Under the control of the host μC, all voiceband requirements are catered for: voiceband and sub-audio filtering, pre/de-emphasis, compression and expansion and audio routing and global level setting with single or two-point modulation in the transmit path.

Features

? Automatic signal type scanning and IRQ on detection of valid Rx signals, level or RSSI

? Tone generator for caller recognition tunes

? Programmable power down control

? Programmable signal detection thresholds

? Low Power operation with Zero Power mode

? Uncommitted Aux ADC with switchable input to monitor signals

? Silent operation by removal of unwanted calls

? Selectable voice companding

? XTCSS channel and data signalling

? Robust automatic packet data protocol with: Error correction and detection, Interleaving and data scrambling/privacy coding.

? Voice processing facilities, including Tx and Rx gain setting and voice/subaudio filtering

? C-BUS serial host interface

? RF interface allowing 1 or 2 point modulation

? Programmable soft limiter

? Enhanced CTCSS and 23/24 bit DCS codecs

? Zero ‘talk down’ CTCSS decoder performance prevents dropouts

? ‘All call code’ and ‘monitor’ modes for CTCSS

? Audio scrambling

? Robust Half Duplex FFSK/MSK modem, 1200/2400 bps, gets data through when signal is too degraded for voice – for text messaging/paging, location transfer, etc. applications.