SE2568U Datasheet, PDF (1/2 Pages) SiGe Semiconductor, Inc. – 2.4 GHz High Efficiency Wireless LAN PA Preliminary

SE2568U
2.4 GHz High Efficiency Wireless LAN PA
Preliminary
Applications
ƒ IEEE802.11b DSSS WLAN
ƒ IEEE802.11g OFDM WLAN
ƒ Embedded, SiP modules
Features
ƒ Dual Mode IEEE802.11b & IEEE802.11g
ƒ Integrated PA, digital bias control, 50Ω input and
output match, 3.2GHz TX Filter.
ƒ Integrated harmonic filter.
ƒ Integrated load insensitive Power Detector, with
<1dB error at 2:1 mismatch
ƒ 20 dBm Output Power, 802.11b, 11 Mbps, ACPR
<-30 dBc
ƒ 18dBm @ 3.0 % EVM, 802.11g, 54 Mbps
ƒ 2.3 V to 4.8 V direct to battery supply
ƒ Lead free, Halogen free, ROHS compliant ,
2 x2x0.5 mm QFN package, MSL 1
Ordering Information
Part No.
SE2568U
SE2568U-R
SE2568U-EK1
Package
8 pin QFN
8 pin QFN
N/A
Remark
Samples
Tape and Reel
Evaluation kit
Functional Block Diagram
Product Description
The SE2568U is a complete 802.11 b/g WLAN
discrete power amplifier. The device provides all the
functionality of the power amplifier, power detector,
filter, associated input, inter-stage and output
matching in an ultra compact 2mm x 2mm x 0.5mm
form factor.
The SE2568U is designed for ease of use, with all the
critical input and output matching integrated. The
SE2568U includes a transmitter power detector with
20 dB of dynamic range and a digital Enable for
power on/off control. Harmonic filters and an input
3.2GHz LO rejection filter are integrated on-chip. The
power ramp rise/fall time is 0.7 μs typical.
EN VCC VCC2
Bias Circuitry
RF IN
50ohm
Match
3.2GHz
Filter
Detector
50ohm Match
& harmonic
Filter
RF Out
Pdet
Figure 1: Functional Block Diagram
DST-00190 ƒ Rev 2.0 ƒ Sep-29-2009
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