Alliance releases Envelope Tracking design IP to Members

Cambridge, UK, 27 June 2011 – The OpenET Alliance today released key IP design blocks supporting the implementation of the OpenET Envelope Tracking Interface for free download by new and existing members.

According to Steven Baker of the OpenET Alliance, “Knowledge sharing between members is a key element of our mission to speed adoption of Envelope Tracking as a wideband, power optimisation technology. The value of these first IP blocks alone exceeds the first year’s membership fees for our members.”

The VHDL implementation of the OpenET Interface envelope path is released with a bit exact simulation and a test harness to enable customisation and verification. Separate designs have been released to generate envelope reference data from baseband I/Q data for Infrastructure and Terminal applications. The Infrastructure variant provides a digital envelope output, while the terminal variant is structured to drive a parallel DAC.

The OpenET Alliance has also released a set of W-CDMA, LTE5, LTE10 and LTE20 test waveform definitions for free download by members. These support the repeatable simulation, measurement and comparison of transmitter performance, and are specified for use in popular EDA tools. Eight waveform files are fully defined, spanning a range of modulation types and channel configurations.

About the OpenET Alliance

The OpenET Alliance is a not-for-profit industry organisation with a mission to drive the development and adoption of envelope tracking (ET) power amplification techniques in the cellular and broadcast industries. It promotes the benefits of envelope tracking techniques to relevant industry and consumer audiences, publishes OpenET interface specifications and supports the ecosystem of suppliers needed to create market leading, power efficient products. ET enables significant cost and power reduction by enabling highly efficient broadband RF power amplifiers that can be used in next generation radio transmitters for mobile terminals, cellular base stations and digital broadcast transmitters. For further details and to download membership terms visit www.open-et.org.

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Alliance releases Envelope Tracking design IP to Members

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