CMX7164 Datasheet, PDF (1/146 Pages) CML Microcircuits – Automatic frame sync detect

CML Microcircuits
COMMUNICATION SEMICONDUCTORS
CMX7164
Multi Mode Modem
DATASHEET D/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 without manual trim (Tx)
o I/Q trims
 C-BUS host Serial Interface
o SPI-like with register addressing
o Read/Write 128-byte FIFOs and data buffers
streamline transfers and relax host service
latency
 Auxiliary Functions
o Four 10-bit DACs
o Autonomous RAMDAC sequencer
o Automatic support for dc calibration of CMX998
o Four 10-bit ADCs
o ADC averaging and trip on high/low ‘watch’
modes
o Four GPIO
o Sequence GPIO on Tx or Rx trigger
o Start Tx on digital trigger input
 Master C-BUS/SPI Serial Interface
o For external slave devices e.g. RF transceiver
and synthesiser
o Pass-through mode expands host C-BUS/SPI
capacity
 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
o Telemetry/SCADA/data modems
o 6.25kHz to 25kHz RF channel spacing
o Compatible worldwide e.g. ETSI, FCC, ARIB, etc.
o FCC Part 90 per new spectral efficiency
requirements
 Digital Software Defined Radio (SDR)
 High-speed Wireless Data
 Mobile Data over Fading Channels
 V.23 compatibility for interoperability with legacy
equipment in the field
 2015 CML Microsystems Plc