CMX7164

CML Microcircuits COMMUNICATION SEMICONDUCTORS CMX7164 Multi Mode Modem DATASHEETD/7164_FI-1.x/FI-2.x/FI-4.x/FI-6.x/22 May 2015 Provisional Issue 7164FI-1.x, 7164FI-2.x, 7164FI-4.x and 7164FI-6.x Multi Mode Modem Features  Half-duplex modem supports multiple modulations and channel spacings  7164FI-1.x o GMSK/GFSK with BT=0.5, 0.3, 0.27 or 0.25 o Over-air compatible with FX/MX909B and CMX7143FI-1.x o Two frame sync detectors o Automatic frame sync detect o Rx carrier frequency correction o Receive signal quality measurement  7164FI-2.x o 2/4/8/16-FSK up to 10ksymbols/s in 25kHz e.g. 40kbps for 16-FSK o Compatible FEC for CMX7143 and FX/MX919B 4-FSK (not 2-FSK) o Over-air compatibility with CMX969 for RD-LAP Tx/Rx o Two frame sync detectors o Automatic frame sync detect o Rx carrier frequency correction o Receive signal quality measurement  7164FI-4.x o 4/16/64 QAM up to 96kbps in 25kHz o Different rate, robust FEC choices o Channel estimation and equalisation o Two frame sync detectors o Automatic frame sync detect o Rx carrier frequency and phase correction o Receive signal quality measurement  7164FI-6.x o V.23 modulation o Two frame sync detectors o Automatic frame sync detect o Rx carrier frequency correction o Receive signal quality measurement  High Performance I/Q Radio Analogue Interface o Tx and Rx: ‘direct connect’ to zero IF transceiver o Simple external RC filters o Digital IF filter reconfigures for multiple RF channel spacings (Rx) o Deviation control...