CMX7143Q3 CML Microcircuits

CMX7143 CML Microcircuits Multi-Mode Wireless COMMUNICATION SEMICONDUCTORS Data Modem D/7143 FI2.0/10 May 2013 DATASHEET Provisional Issue 7143FI-2.x 4FSK Packet Data Modem Features Multiple Modulation Types Flexible Bit Rates o 7143 FI-1.0: GMSK/GFSK Modulation Raw Mode, Data Pump, Carrier Sense o 7143 FI-2.0: 4FSK Modulation - Over-air Auxiliary System Clock Outputs compatibility with CMX969 for RD-LAP Tx/Rx Tx Outputs for 2-point or I/Q Modulation o 7143 FI-3.0: FFSK/MSK Modulation Available in 48-pin LQFP and VQFN Packages Automatic Frame Sync Detection Low-power 3.3V Operation Automatic Preamble, Frame Sync Insertion Flexible Powersave Modes 2 x Auxiliary ADCs and 4 x Auxiliary DACs Formatted or Raw Data Modes 3 x Analogue Inputs (RSSI or Discriminator) Soft Decision Data Bits C-BUS Serial Interface to Host Controller CMX7143 Clock System Clk Synthesizers C-BUS 2 aux ADCs registers 3 aux DACs Status System 1 aux/RAM DAC Tx Trigger Input Mode/Aux GPIO Host C C-BUS Tx Sequence Data Buffer Control MOD1 gain Modulator Tx Data MOD2 gain RF Modem Rx Rx Discriminator CS RSSI Config (in Configuration Idle) Parameters 1 Brief Description Designed for use in wireless data modems, the CMX7143 with 7143FI-2.x is a half-duplex modem with carrier sense and automatic control of transmit hardware, including a RAMDAC for PA ramping. Carrier sense provides a listen before talk capability, automatically reverting to receive if activity on channel is detected. In receive, automatic frame sync detection provides acquisition of the received signal with minimal host intervention. Two different frame sync patterns may be searched for concurrently, with little need for preamble. Continued... 2013 CML Microsystems Plc CMX7143 FI-2: 4FSK Multi-Mode Wireless Data Modem CMX7143 Other features include two Auxiliary ADC channels with four selectable inputs and up to four auxiliary DAC outputs (with an optional RAMDAC on the first DAC output, to facilitate transmitter power ramping). Coded mode supports block types compatible with the CMX919 and CMX969 (RD-LAP) modems. The device has flexible powersaving modes and is available in both LQFP and VQFN packages. The device utilises CMLs proprietary FirmASIC component technology. On-chip sub-systems are configured by a Function Image: this is a data file that is uploaded during device initialisation and defines the device s function and feature set. The Function Image can be loaded automatically from an external EEPROM or from a host Controller over the built-in C-BUS serial interface. The device s functions and features can be enhanced by subsequent Function Image releases, facilitating in-the-field upgrades. This document refers specifically to the features provided by Function Image 7143FI-2.x. Separate Function Images are available which support GFSK/GMSK and FFSK/MSK modulation. This Datasheet is the first part of a two-part document comprising Datasheet and User Manual: the User Manual can be obtained by registering your interest in this product with your local CML representative. 2013 CML Microsystems Plc Page 2 D/7143 FI2.0/10