2.4-GHz amplifier features power detector

Ottawa, Ontario—SiGe Semiconductor announced the SE2582L, a power amplifier based on an integrated architecture that boosts power efficiency, reduces system-level cost and optimizes WiFi system performance.

Applications include access points, laptops, PC cards and embedded WiFi applications. The SE2582L employs an architecture that features a high-performance power detector, all matching circuitry, and digital enable control in a compact 3mm x 3mm QFN package.

The device operates in the 2.4-GHz frequency band, supporting all of the requirements for 802.11b/g applications. Lead customers are pairing two
SE2582L devices together to support multiple input, multiple output (MIMO) 802.11n operation. The higher throughput of 802.11n will allow manufacturers to support consumer applications that go beyond data and internet to high definition video and media distribution.

The SE2582L delivers +17.5-dBm output power at an error vector magnitude (EVM) of 3 percent using 105mA while operating in 802.11g mode. All ACPR requirements are met while operating at +20 dBm output power in 802.11b mode.

The device features low quiescent current of 48 mA, allowing increased efficiency at reduced power levels. The low power consumption allows multiple power amplifiers to be integrated without impacting battery life, thus allowing higher data rates to be supported in Cardbus or PCI-Express applications, or mobile appliances, including cellular phones and PDAs.

The SE2582L includes a temperature controlled power detector featuring 20 dB of dynamic range and digital enable control for transmitter power ramp
on/off control. This functionality allows for a seamless interface with CMOS
transceivers, without the use of external logic or reference voltages.

Pricing: $.65 in 10k unit quantities.
Availability: Production now.
Datasheet: click here

SiGe Semiconductor Inc., 1 (613) 820-9244,

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