Packet IC modem CMX7164 series

for communicationdataQAM

The CMX7164 Multi-mode Wireless Data Modem is a half-duplex device supporting 4/16/32/64 QAM, 2/4/8/16 FSK, GMSK/GFSK and V.23 modes in multiple channel spacings, under host control. An integrated analogue interface supports direct connection to zero IF I/Q radio transceivers with few external components; no external codecs are required. Intelligent auxiliary ADC, DAC and GPIO sub-systems perform valuable functions and minimise host interaction and host I/O resources. Two synthesised system clock generators develop clock signals for off-chip use. The C-BUS/SPI master interface expands host C-BUS/SPI ports to control external devices. The device utilises FirmASIC component technology. On-chip sub-systems are configured by a Function Image data file and define the device’s function and feature set. The differential inputs are ideal for direct connection to RF Building Block ICs such as CMX994, CMX994A, CMX994E RF Direct Conversion Receiver ICs GMSK, GFSK 2-FSK, 4-FSK, 8-FSK, 16-FSK 4-QAM, 16-QAM, 32-QAM, 64-QAM V.23 Two Frame-Sync Detectors Automatic Frame Sync Detect Rx Crrier Fequency Correction Receive Signal Quality Measurement Over-air Compatible with Standard Modems Robust Data Packet Modes C-BUS Host Serial Interface: SPI-like with Register Addressing Read/Write 128-Byte FIFOs/Data Buffers Master C-BUS/SPI Serial Interface: For External Slave Devices Pass-through Mode High Performance I/Q Radio Analogue Interface: