5GHz power amplifier module extends WLAN range

20th March 2015

Nat Bowers

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Datasheet

Designed for the IEEE 802.11ac ultra-high data-rate WiFi standard, Microchip has announced a 5GHz Power Amplifier Module (PAM). The SST11CP22 delivers 19dBm linear output power at 1.8% dynamic Error Vector Magnitude (EVM) with MCS9 80MHz bandwidth modulation.It can also deliver 20dBm linear power at 3% EVM for 802.11a/n applications.

The SST11CP22 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.

Achieving the maximum data rate and longest range, while minimising current consumption, are essential to designers of WiFi MIMO access-point, router and set-top-box systems. 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 includes an output harmonic rejection filter and is 50Ω-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 2:1 output mismatch. These features are critical for 802.11ac WiFi set-top boxes, routers, access points and wireless video streaming devices that operate at high data rates.

The SST11CP22 RF PAM is available today in a 4x4mm, 20-pin QFN package, with sampling and volume production both available now. Developers can begin designing today with the SST11CP22 Evaluation Board (SST11CP22-GN-K) which is also available now.