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RFMD welcomes envelope tracking

The firm has has added multiple new products to its portfolio of envelope tracking (ET) power management and gallium arsenide (GaAs) power amplifier solutions.
RF Micro Devices's ET-based solutions leverage the company's leadership in RF power management and cellular power amplifiers (PAs) to improve system-level efficiency in high-data rate applications.

The new RF solutions - the RF7389, RF7390, RF7459, RF8081, and RF8085 - comprise ET PMICs, ET multimode multi-band (MMMB) PAs, and ET ultra-high efficiency PAs.

According to RFMD, the PA products are predominantly gallium arsenide (GaAs based), while the PMIC products are based on silicon.

RFMD's expanding ET product portfolio is compatible with the leading LTE chipsets and provides full ET compatible coverage of all FD-LTE and TD-LTE bands (1-14, 17-21, 25-28, 38, 40, 41, and 44).

RFMD anticipates the combination of ET technology and RFMD's advancements in RF power management will be a disruptive combination that raises the bar significantly in RF performance.

Only in the last couple of weeks, Nujira and Qualcomm announced that they were players in the envelope tracking market using silicon CMOS solutions which could displace GaAs based solutions.

RFMD is a pioneer in RF power management and has shipped tens of millions of power management integrated circuits (PMICs). RFMD is also an innovator in RF power control and has shipped hundreds of millions of power amplifiers (PAs) with integrated power control.

Eric Creviston, president of RFMD's Cellular Products Group, says, "RFMD is at the forefront of technology development in RF power management, and we are enthusiastic about the deployment of ET-based solutions. We believe the importance of power management technologies such as average power tracking (APT) and envelope tracking will continue to expand in smartphones, enabling RFMD to leverage our combined leadership in power amplifiers and RF power management and increase our RF content opportunity."
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