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.

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Devices are available through our distributors below:

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Block diagram

CMX7146 Block Diagram

Product SnapShot

Please ensure that you have downloaded the latest datasheet containing up-to-date information on product operation, technical specifications and packaging.

Features

  • 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)

Applications

  • Emergency beacons
  • IIoT transmitters
  • Cube SAT communications

 

Power supply requirement

  • 3.3V supply

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Design resources

PE0402

PE0402

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

PE0402_User_Manual

PE0402_Schematics

PE0003

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

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