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Product category: Communications ICs (Wireless)
News Release from: Avago Technologies | Subject: MGA-412P8
Edited by the Electronicstalk Editorial Team on 29 March 2006

WLAN power amp saves power for handhelds

An E-pHEMT power amplifier is specifically designed for IEEE802.11b/g mobile wireless local area networks.

New from Avago Technologies is an E-pHEMT (enhancement-mode pseudomorphic high-electron-mobility transistor) power amplifier specifically designed for IEEE802.11b/g mobile wireless local area networks (WLANs) Avago's MGA-412P8 features high linear output power at the industry's lowest operating current with a shutdown function to conserve battery power, and is supplied in a tiny 2 x 2mm LPCC (leadless plastic chip carrier) package

Avago's MGA-412P8 power amplifier is perfect for portable WLAN applications such as PDAs and mobile handsets, digital cameras, printers and print servers.

It is also suitable for use as a power amplifier for RFID transmitters, Bluetooth and other applications in the licence-free 2.4GHz ISM (industrial, scientific and medical) band.

"The industry-best, power-added efficiency of our proprietary E-pHEMT power technology has allowed Avago to develop the first low-current high-linearity power amplifier available in the 802.11b/g market", said Bryan Ingram, Vice President and General Manager of Avago Technologies' Wireless Semiconductor Division.

"The device saves significant battery power and reduces board space, which is critical for handheld WLAN products".

At 2.452GHz and 3.3V bias, the MGA-412P8 provides 25.5dB gain as well as +19dBm linear power output with IEEE802.11g OFDM (orthogonal frequency division multiplexing) modulation at a 54Mbit/s datarate, and three% EVM (error vector magnitude) while consuming only 95mA current.

For 802.11b CCK (complementary code keying) at 11Mbit/s the MGA-412P8 provides +23dBm linear output at only 200mA current.

Typical reverse isolation is greater than 40dB, and typical quiescent current only 40mA.

Other features include integrated power detector and power-down functions, and operation from a single +3.3V supply.

During shutdown, the power amplifier draws only 5uA typical.

The MGA-412P8 is supplied in the compact, industry-standard 2.0 x 2.0 x 0.75mm, 8-pad JEDEC DRP-N LPCC leadless plastic chip carrier - the smallest package used for 802.11 power amplifiers.

The package's lead-free backside metalisation provides excellent thermal dissipation as well as visual evidence of solder reflow.

The Avago MGA-412P8 is available now through Avago's direct sales channel and worldwide distribution partners. Request a free brochure from Avago Technologies ...

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