CML Microcircuits
COMMUNICA
TION SEMICONDUCTORS
CMX7163
QAM
Modem
D/7163_FI-4.x/12 June 2014
DATASHEET
7163 FI-4.x QAM Modem
Advance Information
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
o
o
o
o
o
o
o
o
4/16/64 QAM up to 96kbps in 25kHz
Different rate, robust FEC choices
Channel estimation and equalisation
FEC and raw (uncoded) modes
Two x frame sync detectors
Automatic frame sync detect
Formatted blocks for packet construction
Rx carrier frequency and phase correction
Receive signal quality measurement
Auxiliary Functions
o
o
o
o
o
o
o
o
Four x 10-bit DACs
Autonomous RAMDAC sequencer
Automatic support for dc calibration of CMX998
Four x 10-bit ADCs
ADC averaging and trip on high/low ‘watch’ modes
Four x GPIO
Sequence GPIO on Tx or Rx trigger
Start Tx on digital trigger input
For external slave devices e.g. RF transceiver and
synthesiser
Pass-through mode expands host C-BUS/SPI
capacity
Master C-BUS/SPI Serial Interface
o
o
High Performance I/Q Radio Analogue
Interface
o
o
o
o
o
Tx and Rx: ‘Direct connect’ to zero IF
transceiver
Simple external RC filters
Digital IF filter reconfigures for multiple RF
channel spacings (Rx)
Deviation control without manual trim (Tx)
I/Q trims
SPI-like with register addressing
Read/Write 128-byte FIFOs and data buffers
streamline transfers and relax host service
latency
Two Synthesised Clock Generators
Low Power 3.3V Operation with Powersave
Functions
Small 64-pin VQFN and LQFP Packages
Applications
High Performance Narrowband Data Radio
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o
o
o
Telemetry/SCADA/data modems
6.25kHz to 25kHz RF channel spacing
Compatible worldwide e.g. ETSI, FCC, ARIB, etc.
FCC Part 90 per new spectral efficiency
requirements
C-BUS host Serial Interface
o
o
Digital Software Defined Radio (SDR)
High-speed Wireless Data
Mobile Data over Fading Channels
Aux
4 x GPIO
Aux
4 x ADC
Aux
4 x DAC
Aux
2 x CLK
Synth
FIFO
Registers
RF Rx
ADCs
Digital
Filters
Modem
RF Tx
DACs
Digital
Filters
Modulate
External Serial
Devices
C-BUS/SPI
master
FEC
Configuration
Modulation-
Specific Function
Image™
C-BUS
Host
µC
CMX7163
QAM Modem
3.3V
3.3V
2014 CML Microsystems Plc
CMLMICRO [ CML MICROCIRCUITS ]
