CMX7163 Description
The CMX7163 QAM Modem is a half-duplex device supporting multiple channel spacings under host microcontroller (μC) control. Its Function Image (FI) is loaded to initialise the device and determine modulation types. The7163 FI-4.x supports 4-, 16- and 64-QAM modulations, root raised cosine filtered with =0.2, 0.35 or a user programmable filter.
CMX7163 Key Features
- Half-duplex QAM modem supports multiple modulations and channel spacings
- No DSP or Codecs required; simply upload modulation Function Image™ (FI)
- QAM 7163 FI-4.x o 4/16/64 QAM up to 96kbps in 25kHz o Different rate, robust FEC choices o Channel estimation and equali
- High Performance I/Q Radio Analogue Interface o Tx and Rx: ‘Direct connect’ to zero IF transceiver o Simple external RC
- C-BUS host Serial Interface o SPI-like with register addressing
- Auxiliary Functions o Four x 10-bit DACs o Autonomous RAMDAC sequencer o Automatic support for dc calibration of CMX998
- Master C-BUS/SPI Serial Interface o For external slave devices e.g. RF transceiver and synthesiser o Pass-through mode e
- Two Synthesised Clock Generators
- Low Power 3.3V Operation with Powersave
- Small 64-pin VQFN and LQFP Packages