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RF/Microwave??

SiGe Semi WLAN amplifier cuts current consumption by half

Posted: 22 Aug 2002 ?? ?Print Version ?Bookmark and Share

Keywords:sige semiconductor? se2522l? se2520l? rangecharger? wlan power amplifier?

The SE2522L 2.4GHz power amplifier from SiGe Semiconductor Inc. combines a SiGe architecture with power control circuitry to reduce current consumption by as much as 50 percent over competing products.

A part of the company's RangeCharger product line, the 8-lead PLCC device is based on the SE2520L device and is expected to drive 802.11b-enabled laptops, computer peripherals, cellphones, and other handheld computing devices.

The SE2522L uses SE2520L's architecture but adds a power detector to augment the performance and simplify design of WLAN systems on a CMOS radio.

Capable of operating at full duty cycle, the amplifier delivers up to 20dBm of linear output power with an adjacent-channel power ratio <-20dBm per 100KHz. It operates from a single 3.3V supply and draws 110mA.

Aside from the LPCC package, the SE2522L will also be available in a flip-chip package option. Sample price is 94 cents in 100,000-unit quantities.





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