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5GHz power amplifier module cuts cost for WLAN-based designs

Posted: 25 Mar 2015 ?? ?Print Version ?Bookmark and Share

Keywords:Microchip Technology? WLAN? power amplifier? Wi-Fi?

Microchip Technology Inc. has introduced a 5GHz power amplifier module (PAM) for the IEEE 802.11ac ultra high data rate Wi-Fi standard. The SST11CP22 claims to offer 19dBm linear output power at 1.8 per cent dynamic error vector magnitude (EVM) with MCS9 80MHz bandwidth modulation.

The SST11CP22 also delivers 20dBm linear power at 3 per cent EVM for 802.11a/n applications, is spectrum mask compliant up to 24dBm for 802.11a communication, and has less than -45dBm/MHz RF harmonic output at this output power, making it easier for the system board to meet FCC regulations, indicated the company.


Achieving the maximum data rate and longest range while minimising current consumption is essential to Wi-Fi MIMO access-point, router and set-top-box system designers. The SST11CP22's low EVM and high linear power facilitate MIMO operation and significantly extend the range of 802.11ac systems in ultra-high data rate transmission mode. The module, housed in a 4mm x 4mm, 20-pin QFN package, includes an output harmonic rejection filter and is 50-matched, requiring only four external components. It is easy to use and reduces board size. Additionally, the integrated linear power detector provides accurate output power control over temperature and 2-to-1 output mismatch. These features are critical for 802.11ac Wi-Fi set-top boxes, routers, access points and wireless video streaming devices that operate at high data rates.

SST11CP22 block diagram

Developers can begin designing today with the SST11CP22 Evaluation Board (part# SST11CP22-GN-K), which is available via any Microchip sales representative.

The SST11CP22 RF power amplifier module is available today in 10,000-unit quantities. Sampling and volume production are both available.

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