SE2521A60 Datasheet, PDF (1/16 Pages) SiGe Semiconductor, Inc. – RangeCharger™ 2.4 GHz Wireless LAN Front End

SE2521A60
RangeCharger™ 2.4 GHz Wireless LAN Front End
Applications
ƒ IEEE802.11b DSSS WLAN
ƒ IEEE802.11g OFDM WLAN
ƒ Access Points, PCMCIA, PC cards
Features
ƒ Pin for pin compatible to SiGe’s SE2521A34 but
providing 2 dB extra output power
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 23 dBm O/P Power, 802.11b, 11 Mbits, ACPR <-
35 dBc
ƒ 18 dBm @ 2.0 %, 802.11g, 54 Mbits
ƒ Single supply voltage: 3.3 V ± 10 %
ƒ Lead free and RoHS compliant
ƒ Small lead free plated package, 8 mm x 7 mm x
1.1 mm, MSL 3
Ordering Information
Part No.
SE2521A60
SE2521A60-R
SE2521A60-EK1
Package
24 pin LGA
24 pin LGA
N/A
Remark
Samples
Tape and Reel
Evaluation kit
Functional Block Diagram
V_CC1
Product Description
The SE2521A60 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 SE2521A60
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 SE2521A60 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 device also provides a notch filter from 3.2-3.3
GHz prior to the input of the power amplifier.
The SE2521A60 is footprint compatible to SiGe’s
SE2521A34 and can be placed directly into existing
SE2521A34 designs easily providing higher output
power solutions
ANT_A
TX_EN
TX_IN
50 Ohm
Match
Filter
PD_OUT
RX_OUT
Bias Circuitry
Power
Detector
50 Ohm
Match
OMN
LPF
Figure 1: Functional Block Diagram
177-DST-01 ƒ Rev 1.4 ƒ Apr-04-2006
Confidential
QA040406
50 Ohm
Match
Switch
50 Ohm
Control
Match
C1
C2
C3
C4
ANT_B
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