Datasheet CML Microcircuits CMX7146Q3

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Detailed 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.

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)

Model Line

Manufacturer's Classification

• Wireless Data Modulator