Product category:
Communications ICs (Wireless)
News Release from: SiGe Semiconductor | Subject: SE2582L
Edited by the Electronicstalk Editorial
Team on 17 April 2007
Power amp boosts Wi-Fi performance
Integrated architecture power amplifier boosts power efficiency, reduces system-level cost and optimises performance of Wi-Fi systems.
Available now from SiGe Semiconductor, the SE2582L is a power amplifier based on an integrated architecture that boosts power efficiency, reduces system-level cost and optimises performance of Wi-Fi systems The new power amplifier is ideal for access points, laptops, PC cards and embedded Wi-Fi applications
This article was originally published on Electronicstalk on 22 Jul 2008 at 8.00am (UK)
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The SE2582L is based on a proven, award-winning architecture that features a high-performance power detector, all matching circuitry, and digital enable control in a compact 3 x 3mm QFN package.
The device provides high performance and integration while still maintaining a low quiescent current.
This allows product designers to achieve even more efficiency while transmitting at lower output powers.
Further reading
Amplifier IC upgrades Wi-Fi performance
High linearity Wi-Fi power amp optimises transmission of greater datarates over longer distances, allowing systems to support emerging wireless multimedia applications.
WLAN front ends shrink for portable appeal
Complete 802.11a/b/g/n WLAN RF front-end modules provide all the functionality required between the transceiver and the antenna in dual-band Wi-Fi systems.
The highly integrated architecture eliminates external requirements for matching and reference voltages, thereby reducing system bill of materials cost by about 10% and board space by 43%.
The device operates in the 2.4GHz frequency band, able to support 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 was designed specifically to meet the requirements of the embedded space, where battery life and size are critical", said Jose Harrison, Marketing Manager for Power Amplifier Products at SiGe Semiconductor.
"We have combined an efficient architecture with power control features that allow designers to easily meet the maximum power consumption ratings, even when incorporating two or more transmit chains".
"This ability to support higher bandwidth without impacting battery life allows consumer device manufacturers to capitalise on the emerging opportunity for wireless multimedia services".
The SE2582L delivers +17.5dBm output power at an error vector magnitude (EVM) of 3% using 105mA while operating in 802.11g mode.
All ACPR requirements are met while operating at +20dBm output power in 802.11b mode.
The device features low quiescent current of 48mA 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 datarates 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 20dB 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.
The SE2582L is in production now.
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