SE2521A80 SIGE | Alldatasheet

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Technical content

Features

ƒ Dual Mode IEEE802.11b & IEEE802.11g ƒ All RF ports matched to 50 Ω ƒ Integrated PA, TX Filter, DPDT T/R and Diversity switches ƒ Integrated Power Detector ƒ 20 dBm @ 3.0 % EVM, 802.11g, 54 Mbits ƒ 20 dBm, 802.11b, ACPR = -37 dBr, 11 Mbits ƒ Single supply voltage: 3.3 V ± 10 % ƒ Small lead free package, 8 mm x 7 mm x 1.2 mm, MSL 3

Ordering Information

Part Number Package Remark SE2521A80 24 pin LGA Samples SE2521A80-R 24 pin LGA Tape and Reel SE2521A80-EK1 N/A Evaluation kit Product Description The SE2521A80 is a complete 802.11 b/g WLAN RF front-end module providing all the functionality of the power amplifier, power detector, T/R switch, diversity switch and associated matching. The SE2521A80 provides a complete 2.4 GHz WLAN RF solution from the output of the transceiver to the antennas in an ultra compact form factor. Designed for ease of use, all RF ports are matched to 50 Ω to simplify PCB layout and the interface to the transceiver RFIC. The SE2521A80 also includes a transmitter power detector with 20 dB of dynamic range and a digital enable control for transmitter power ramp on/off control. The power ramp rise/fall time is 1 μsec typical. The SE2521A80 is pin for pin compatible to SiGe’s SE2521A34 for easy transition of medium power designs to higher power designs. The device also provides a notch filter from 3.2-3.3 GHz prior to the input of the power amplifier. Functional Block Diagram Bias Circuitry Power Detector ANT _B (50 Ohm) PD_OUT TXEN

50 Ohm

ANT _A (50 Ohm)Switch Figure 1: Functional Block Diagram 132-DST-01 ƒ Rev 1.3 ƒ May-26-2009 1 of 2 QA040506

2.4 GHz Wireless LAN Front End

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Ottawa ON K2H 8K7 Canada Fax: +852 3579 5450 Phone: +1 613 820 9244 San Diego Fax: +1 613 820 4933 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 Semic onductor, Inc. reserves the right to chang e information at any time without notification. Preliminary Information The datasheet contains information from the design target specification. SiGe Semiconductor, Inc. re serves the ri ght 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 u nder any patent or other intellectual property rights of SiGe Semiconductor, Inc. or third parties. Specifications mentioned in this pu blication are subject to change without notice. This publication supersedes and replaces all in formation previously supplied. SiGe Semiconductor, Inc. products are NOT authori zed 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 132-DST-01 ƒ Rev 1.3 ƒ May-26-2009 2 of 2 QA040506