SE2559L20
2.4 GHz High Efficiency Wireless LAN Front End
Preliminary
Applications
IEEE802.11b DSSS WLAN
IEEE802.11g OFDM WLAN
Access Points, PCMCIA, PC cards
Product Description
The SE2559L20 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 SE2559L20
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 SE2559L20 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
SE2559L20 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 0.5
μs
typical.
The device also provides a 3.2–3.3 GHz notch filter
prior to the input of the power amplifier.
Features
Dual Mode IEEE802.11b & IEEE802.11g
Integrated PA, TX Filter, DPDT T/R and Diversity
switches
Integrated Negative 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, halogen free and RoHS compliant
Small lead free, plated package, 4 mm x 5 mm x
0.9 mm, MSL 1
Ordering Information
Part No.
SE2559L20
SE2559L20-R
SE2559L20-EK1
Package
22 pin QFN
22 pin QFN
N/A
Remark
Samples
Tape & Reel
Evaluation kit
Functional Block Diagram
V
CC
ANT_A
50 Ohm
Match
TXEN
Bias Circuitry
TX
RF
50 Ohm
Match
Filter
OMN
LPF
PD_OUT
Power
Detector
50 Ohm
Match
50 Ohm
Match
Switch
Control
C1
RX
OUT
C2
C3
C4
ANT_B
Figure 1: Functional Block Diagram
DST-00057
Rev 1.9
May-26-2009
1 of 2
SIGE [ SIGE SEMICONDUCTOR, INC. ]
