CML Microcircuits
COMMUNICA
TION SEMICONDUCTORS
CMX7161
Digital Radio Processor
D/7161_FI-1.0/4 September 2013
DATASHEET
Advance Information
7161FI-1 TDMA Digital Radio Processor
Features
Tx Functions:
Two-point modulation analogue outputs
Root-raised-cosine (=0.2) pulse shaping
RAMDAC capability for PA ramping control
Tx trigger feature allowing precise control of
burst start time
Tx burst sequence for automatic RAMDAC
ramping and hardware switching
Rx Functions:
I/Q analogue inputs
Rx channel filtering and root-raised-cosine
(=0.2) pulse shaping
Data returned as hard-decision bits or 4-bit
soft-decision LLR metrics
Automatic frame sync detection
Automatic tracking of symbol timing and
input I/Q DC offsets
Slot timing functions:
30ms slot format (264-bit bursts)
Internal slot clock and timing maintenance
Automatic synchronisation to received
channel
Automatic sequencing of hardware control
Auxiliary Functions:
Two programmable system clock outputs
Four auxiliary ADCs with six selectable input
paths
SPI Thru-Port for interfacing to synthesisers
and other serially controllable devices
Four auxiliary DACs, one with built-in
programmable RAMDAC
Host Interface:
Optimised C-BUS (4-wire, high speed
synchronous serial command/data bus)
interface to host for control and data
transfer, including streaming C-BUS for
efficient data transfer
Open drain IRQ to host
Four GPIO pins
Serial memory or C-BUS (host) boot mode.
Applications
ETSI TS 102 361 Digital Mobile Radio
(DMR)
Police Digital Trunking (PDT) Radio
Tx
Rx
CMX994
Direct
Conversion
Receiver
CMX7161
TDMA Digital
Radio
Processor
I INPUT
Q INPUT
Aux
ADCs
DMR
Modem
Memory
Display
C-BUS
Host Micro
Keypad
Aux
DACs
PA
VCO
2 POINT MOD
Aux
System
Clock
Codec
GPIOs
Vocoder
Codec
2013 CML Microsystems Plc
CMLMICRO [ CML MICROCIRCUITS ]
