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Semtech Transceivers Integrate Time-of-Flight Functionality

01 August 2017

Mouser Electronics is now offering the SX128x 2.4 GHx transceivers from Semtech. The SX128x half- duplex radio frequency (RF) transceivers are part of Semtech’s SX100 line of ultra-low-power wireless transceivers. These transceivers are able to withstand heavy interference and transmit over long ranges. This is one of the first of their kind to integrate time-of-flight functionality for a range of RF and Internet of Things (IoT) applications.

The SX128x transceivers from Semtech (Mouser)The SX128x transceivers from Semtech (Mouser)

The Semtech SX128x 2.4 GHx RF transceivers integrate a +12.5 dBm analog front end, power distribution, a modem with three modulation options a packet engine for transmission or reception processing and digital interface and control. The power distribution stage offers voltage regulation through integrated low-drop out (LDO) regulator or high-efficiency step-down DC-to-DC converter. Engineers can select depending on application requirements. The digital communication interfaces with SPI, UART and a set of general-purpose digital input and output (DIO).

The onboard modem’s modulation options (LoRa, FLRC and FSK) allows the SX128x devices to perform robust and reliable wireless communications with point-to-point wireless links that can support custom protocols with configurable data rates up to 2 Mbits per second. The SX1280 has a Ranging Engine. A Ranging Engine is a long-distance functionality that permits time-of-flight measurement between a pair of LoRa radios for tracking applications.

The SX128 devices support Bluetooth® low energy in order to enable complaint, multi-mode radio systems. The devices are also fully compliant with worldwide 2.4 GHz radio regulations including EN 300 440, FCC CFR 47 Part 15 and the Japanese ARIB STE-T66. The transceivers operate at a supply voltage range from 1.8 V to 3.7 V. It can be designed into a variety of products like wearables, toys, drones, security systems and healthcare devices.

To learn more about the SX128 devices visit the Mouser site here.

To contact the author of this article, email Siobhan.Treacy@ieeeglobalspec.com


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