CMX7131 Datasheet, PDF (1/69 Pages) CML Microcircuits – 4FSK Modem

CMX7131/CMX7141
CML Microcircuits
Digital PMR Processor
COMMUNICATION SEMICONDUCTORS
dPMR
D/7131/7141FI-1.x/11 October 2013
DATASHEET
Provisional Information
7131/7141FI-1.x: dPMR Baseband Data Processor with Auxiliary System Clocks,
ADCs and DACs
Features
 Digital PMR
 2 Auxiliary ADCs (4 Multiplexed Inputs)
 dPMR (ETSI TS 102 490) Compliant
 4 Auxiliary DACs
 Air Interface Physical Layer (Layer 1)
 2 Auxiliary System Clock Outputs
 Air Interface Data Link Layer (Layer 2)
 Supports similar functionality to I²S Mode
 Tx Outputs for Two Point or I/Q Modulation
 Flexible Powersave Modes
 4FSK Modem
 Available in Small LQFP or VQFN Packages
 4.8 and 9.6 kbps Data Rates
 Low-power (3.3V) Operation
 Soft-decision Data Output Option
 C-BUS Serial Interface to Host µController
 AFSD (Automated Frame Sync Detection)  Two RF Synthesisers (CMX7131 only)
 Raw Data Mode
 Vocoder Connectivity
o Vocoder Management and Control (RALCWI Vocoders CMX608 and CMX618)
o Vocoder Data Transport (Third-party Vocoders e.g. AMBE3000)
Modulator
Discriminator
Rx enable
Tx enable
RF
RF Synthesiser 1
RF Synthesiser 2
CMX7131 only
GPIO
System clock 1
System clock 2
Reference clock
Tx PA ramp
DAC outputs
ADC inputs
CMX7131
CMX7141
Digital PMR
Processor
Built on FirmASIC^® Technology
3.3V
RALCWI
Vocoder
CMX608
CMX618
Third-Party
Vocoder
Host µC
 2013 CML Microsystems Plc