RF integrated circuit radio transmitter CMX7146

datalong-rangerobust

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. 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