se2558l20 SiGe Semiconductor, se2558l20 Datasheet
se2558l20
Manufacturer Part Number
se2558l20
Description
2.4 Ghz High Efficiency Wireless Lan Front End
Manufacturer
SiGe Semiconductor
Datasheet
1.SE2558L20.pdf
(1 pages)
Applications
Features
Ordering Information
Functional Block Diagram
216-DST-01 Rev 1.4 Mar-27-2007
SE2558L20-EK1
PD_OUT
SE2558L20-R
RX
SE2558L20
TXEN
TX
OUT
IEEE802.11b DSSS WLAN
IEEE802.11g OFDM WLAN
Access Points, PCMCIA, PC cards
Dual Mode IEEE802.11b & IEEE802.11g
Integrated PA, TX Filter, DPDT T/R and Diversity
switches
Integrated Positive Slope Power Detector
21 dBm Output Power, 802.11b, 11 Mbits, ACPR
<-30 dBc
18 dBm @ 3.0 % EVM, 802.11g, 54 Mbits
Single supply voltage: 3.3 V ± 10 %
Lead free and RoHS compliant
Small lead free plated package, 4 mm x 5 mm x
0.9 mm, MSL 3
Part No.
RF
50 Ohm
Match
Filter
22 pin QFN
22 pin QFN
Package
N/A
Detector
Power
Bias Circuitry
Tape and Reel
Figure 1: Functional Block Diagram
Evaluation kit
Samples
Remark
V
CC
50 Ohm
Match
2.4 GHz High Efficiency Wireless LAN Front End
Product Description
The SE2558L20 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 SE2558L20
provides a complete 2.4 GHz WLAN RF solution from
the output of the transceiver to the antennas in an
ultra compact form factor.
The SE2558L20 is designed for ease of use, with all
the critical matching and harmonic filtering integrated,
offering a simple 50 Ω interface to the antenna. The
SE2558L20
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 0.5 μs typical.
The device also provides a 3.2–3.3 GHz notch filter
prior to the input of the power amplifier.
OMN
LPF
also
includes
50 Ohm
ANT_A
50 Ohm
ANT_B
Match
Match
a
transmitter
Control
Switch
SE2558L20
Preliminary
power
1 of 1
C1
C2
C3
C4
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