BPSK wireless data modulator simplifies design

August 22, 2019 //By Jean-Pierre Joosting
BPSK wireless data modulator simplifies design
CML Microcircuits Ltd has introduced the CMX7146, a flexible data modulator that simplifies the design of transmit-only solutions using BPSK (binary phase shift keying) and differential BPSK modulation (also referred to as PRK, phase reversal keying, or 2PSK).

The CMX7146 data modulator generates precise baseband analogue in-phase and quadrature signals with programmable signal filtering. This generates with high accuracy a signal ready for transmission and suitable for up-conversion to an RF carrier of the user’s choice. 

Compared to other BPSK systems, the CMX7146 offers greater flexibility, with better support for low speed BPSK modulation. It provides extensive configuration in terms of data rates and modulation shaping, while enabling users to customize transmit frequencies and channel bandwidths using an external RF modulator. 

By contrast, alternative products on the market leave customers to develop their own discrete systems, which requires both RF and DSP programming knowledge. The integrated approach provided by the CMX7146 data modulator accelerates time to market, without the need for specialist knowledge.

David Brooke, Product Manager for CML’s Wireless Voice and Data products, said, “We are seeing a lot of interest in satellite IoT applications that monitor very remote equipment and send relatively small messages. For these kinds of functions, the new CMX7146 will give developers a quick and easy route to deploying a robust transmitter.”

BPSK is often used when durable, long range communication is needed. Its benefits include being relatively simple to demodulate and also extremely power efficient. These features have seen BPSK widely adopted for satellite applications (most recently in CubeSats), marine search and rescue (SAR) beacons and Industrial Internet of Things (IIoT) transmitters.


Vous êtes certain ?

Si vous désactivez les cookies, vous ne pouvez plus naviguer sur le site.

Vous allez être rediriger vers Google.