Wireless Data Modem Provides 4/16/64QAM

Eliminating the need for programmable DSPs and codec chips, the CMX7164 multimode wireless data modem IC from CML Microcircuits integrates 4/16/64QAM (quadrature amplitude modulation) and root raised cosine 2/4FSK (frequency shift keying) baseband modem functions. Overall, the device packs digital IF filters, auxiliary codecs, a clock generator, and I/O functions. It provides multiple modulations for narrowband applications, i.e., machine-to-machine (M2M) systems over dedicated channels, digital software defined radio (SDR), high-speed wireless data, and supervisory control and data acquisition (SCADA) systems. A half-duplex device, it operates at rates up to 96 kbits/s at 25 kHz and supports 6.25-, 12.5-, and 25-kHz bandwidths. Via proprietary FirmASIC component technology, on-chip subsystems are configurable by a Function Image data file. The CMX7164 operates from a 3.3-V supply, includes selectable power-saving modes, and comes in a 64-VQFN (very thin quad flat no-leaded) package and a 64-LQFP (low-profile quad flat package). A datasheet is available at www.cmlmicro.com/products/index.asp?/Products/WData/CMX7164.htm&searchvalue=7164&setindex=1.

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CML MICROCIRCUITS INC.
www.cmlmicro.com

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