CML has added a new direct conversion receiver (DCRx) IC to its family of RF integrated circuits. The CMX994 targets the next generation of multimode software defined radios (SDR) for wireless data and two-way radio applications. Its design provides a route for onboard integration, allowing a small RF receiver to be realised with a minimum of external components in both zero-IF and low-IF systems.
Until recently, most radios have used the superheterodyne (superhet) receiver; however, enhancements in semiconductor technology have enabled the integration of DCRx, allowing it to become the technology of choice for radio receivers in many applications. A DCRx mixes the wanted RF signal down to 0 Hz in a single quadrature mixing process using a local oscillator (LO) tuned to the wanted RF channel frequency. Selectivity filtering and gain can then take place at baseband with practical, low-power analog and digital circuits. DCRx also eliminates the need for an image-reject filter.
Key features of the CMX994 include on-chip VCO for VHF applications, an operating range of 100 MHz to 1 GHz, precision baseband filtering with selectable bandwidths and a small PCB area typically less than 50% of a dual superhet. Another important feature is the single ended RF connections meaning no baluns are required. The device operates at 3,0–3,6 V, and comes in a Q4 40 VQFN package.
Power amps for portable radio comms systems iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
CML Micro expands its SµRF product portfolio with a pair of high efficiency single- and two-stage power amplifiers that offer outstanding performance for a wide range of dual-cell lithium battery-powered wireless devices.
Read more...RF agile transceiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The AD9361 is a high performance, highly integrated RF Agile Transceiver designed for use in 3G and 4G base station applications.
Read more...Choosing a GNSS receiver RF Design
Telecoms, Datacoms, Wireless, IoT
Applications requiring sub-ten-meter positioning accuracy today can choose between single-band or dual-band technology. While this decision might seem as simple as flipping a coin, it is far from that.
Read more...Tri-Teq’s latest range of filters RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
Tri-Teq recently presented its latest filter products, which included passive and co-site mitigation filters (lumped element and suspended substrate technologies) and tunable filters (bandpass and harmonic switched filters).
Read more...The evolution of 4D imaging radar Altron Arrow
Telecoms, Datacoms, Wireless, IoT
4D imaging radar is redefining automotive sensing with unmatched precision, scalability and resilience and, as global adoption accelerates, this technology is poised to become a cornerstone of autonomous mobility.
Read more...Links Field Networks: The perfect fit for telematics in Africa Links Field Networks
Telecoms, Datacoms, Wireless, IoT
Operating at the intersection of global SIM innovation and local market intelligence, Links Field Networks has emerged as a premier provider of telematics-oriented connectivity across Africa and beyond.
Read more...RF direct conversion receiver iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
The CMX994 series from CML Micro is a family of direct conversion receiver ICs with the ability to dynamically select power against performance modes.
Read more...Bridging the future with RAKWireless WisNode devices Otto Wireless Solutions
Telecoms, Datacoms, Wireless, IoT
The WisNode Bridge series by RAKWireless is designed to convert traditional wired industrial protocols like RS485 and Modbus into LoRa-compatible signals.
Read more...Mission-critical RF transceiver Vepac Electronics
Telecoms, Datacoms, Wireless, IoT
The Iris SQN9506 from Sequans Communications is a wide-band RF transceiver that operates from 220 MHz to 7,125 GHz.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version