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SE2548A
Dual Band 802.11a/b/g/n Wireless LAN Front End Preliminary Information
Applications
IEEE802.11b DSSS WLAN IEEE802.11g OFDM WLAN IEEE802.11a OFDM WLAN IEEE802.11n WLAN Access Points, PCMCIA, PC cards
Product Description
The SE2548A is a complete 802.11a/b/g/n WLAN RF front-end module providing all the functionality of the power amplifiers, filtering, power detector, T/R switch, diplexers and associated matching. The SE2548A provides a complete 2.4 GHz and 5 GHz WLAN RF solution from the output of the transceiver to the antenna in an ultra compact form factor. Designed for ease of use, all RF ports are matched to 50 to simplify PCB layout and the interface to the transceiver RFIC. The SE2548A also includes a transmitter power detector for each band and transmit chain with 20 dB of dynamic range for each transmit chain. Each transmit chain has a separate digital enable control for transmitter power ramp on/off control. The power ramp rise/fall time is less than 0.7 sec. The device also provides a notch filter from 3.2603.267 GHz and 3.28-3.89 GHz prior to the input of each 2.4 GHz and 5 GHz power amplifiers, respectively. The SE2548A packaged in 5mm x 5mm x 1.0mm, Halogen free, Lead free, ROHS compliant, MSL 3 LGA package.
Features
All RF ports matched to 50 Integrated 2.4 GHz PA, 5 GHz PA, TX Filter, T/R switches and diplexers Integrated Power Detector for each TX Chain 21 dBm O/P Power, 802.11b, 11 Mbits, ACPR = 35 dBc 18 dBm @ 3.0 % EVM, 802.11g, 54 Mbits 16.5 dBm @ 3.0 % EVM, 802.11a, 54 Mbits Single supply voltage: 3.3 V 10 % Lead free, Halogen free, RoHS compliant, MSL 3 5mm x 5mm x 1.0mm, LGA Package
Ordering Information
Part No. SE2548A SE2548A-R SE2548A-EK1 Package 32 pin LGA 32 pin LGA N/A Remark Samples Tape and Reel Evaluation kit
Functional Block Diagram
Figure 1: SE2548A Functional Block Diagram
DST-00092
Rev 1.8
Sep-14-2009
Confidential
1 of 2
SE2548A
Dual Band 802.11a/b/g/n Wireless LAN Front End Preliminary Information
http://www.sige.com Email: sales@sige.com
Customer Service Locations: North America: 1050 Morrison Drive, Suite 100 Ottawa ON K2H 8K7 Canada Phone: +1 613 820 9244 Fax: +1 613 820 4933 Hong Kong Phone: +852 3428 7222 Fax: +852 3579 5450 San Diego Phone: +1 858 668 3541 (ext. 226) Fax: +1 858 668 3546 United Kingdom Phone: +44 1279 464217 Fax: +44 1279 464201
Product Preview The datasheet contains information from the product concept specification. SiGe Semiconductor, Inc. reserves the right to change information at any time without notification. Preliminary Information The datasheet contains information from the design target specification. SiGe Semiconductor, Inc. reserves the right to change information at any time without notification. Production testing may not include testing of all parameters. Information furnished is believed to be accurate and reliable and is provided on an "as is" basis. SiGe Semiconductor, Inc. assumes no responsibility or liability for the direct or indirect consequences of use of such information nor for any infringement of patents or other rights of third parties, which may result from its use. No license or indemnity is granted by implication or otherwise under any patent or other intellectual property rights of SiGe Semiconductor, Inc. or third parties. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SiGe Semiconductor, Inc. products are NOT authorized for use in implantation or life support applications or systems without express written approval from SiGe Semiconductor, Inc. Copyright 2009 SiGe Semiconductor, Inc. All Rights Reserved
DST-00092
Rev 1.8
Sep-14-2009
Confidential
2 of 2

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