Product description

The CMX7146 is a flexible data transmitter supporting BPSK (Binary Phase Shift Keying) and Differential BPSK modulation (sometimes called PRK, Phase Reversal Keying or 2PSK). BPSK is often used when robust, long-range data communication is required. It is also simple to demodulate and power efficient.

The CMX7146 generates precise baseband analogue in-phase and quadrature signals, which allow the transmitted signal to be generated with high accuracy, making it suitable for up-conversion to an RF carrier of the user’s choice.

The device supports raw (bits in, modulation data out) and preloaded (messages in, modulation data out) transmissions and also features a transmit (Tx) trigger input to enable precisely timed data transfers.  A power amplifier ramping DAC can also be employed to control transmission bursts which can be synchronised as part of the transmit sequence.

Operating from a 3.3V supply, the CMX7146 is designed using  CML’s FirmASIC®  technology. A Function Image™ (FI) file, which defines the operational capabilities of the device, is available from the CML Technical Portal.

Read More

Devices are available through our distributors below:


  • SalesNetworkLogo_2
  • Mouser_logo
  • RFMW logo

Block diagram

CMX7146 Block Diagram

Product SnapShot


  • Data rates supported 600/1200/2400/3600/4800/9600bps
  • Up to 13 bytes per burst
  • PA ramp DAC
  • Baseband IQ outputs for RF modulation
  • Additional data converters
  • C-BUS (SPI compatible) serial control interface
  • Plain or differential BPSK
  • Programmable RRC filter
    • a=0.2/0.3/0.35
  • Low power consumption
    • 7mA TX 1200bps
    • 15mA 9600bps
  • Flexible clocking options
  • Through port control for IQ up converter
  • Auxiliary converters for sensor interfacing
  • 3.3V supply
  • Small 48QFN package (Q3)


  • Emergency beacons
  • IIoT transmitters
  • Cube SAT communications


Power supply requirement

  • 3.3V supply

Not quite sure what you’re looking for?
We can tailor an existing product to your unique requirements

Design resources



The PE0402 Platform Evaluation Kit is designed to assist in the evaluation and application development of the CMX704x/CMX714x range of FirmASIC products. PE0402_Product_Preview




The PE0003 Evaluation Kit Interface Card is a global interface system for use with evaluation kits for CML’s new generation ICs, including FirmASIC™ based products. This greatly simplifies the approach to the evaluation and design-in process. PE0003_Product_Page

Package: Q3

48-Lead VQFN Package

Ask a question

Request a quote