SE2579U Datasheet, PDF (1/2 Pages) SiGe Semiconductor, Inc. – 2.4 GHz High Efficiency Wireless LAN/BT Front End

SE2579U
2.4 GHz High Efficiency Wireless LAN/BT Front End
Applications
ƒ IEEE802.11b DSSS WLAN
ƒ IEEE802.11g,n OFDM WLAN
ƒ Embedded applications with Bluetooth (Mobile)
Features
ƒ Dual Mode IEEE802.11b & IEEE802.11g
ƒ Integrated PA, Harmonic Filter, LNA and BT port
ƒ Integrated Positive Slope Power Detector
ƒ 19 dBm @ 4.0 % EVM, 802.11g, 54 Mbps
ƒ Simultaneous WLAN and Bluetooth receive mode
ƒ Direct connection to battery with 3.3 V nominal
supply
ƒ Lead free, Halogen free and RoHS compliant
ƒ Compact package, 3 x 3 x 0.5 mm, MSL 1
Ordering Information
Part No.
SE2579U
SE2579U-R
SE2579U-EK1
Package
20 pin QFN
20 pin QFN
N/A
Remark
Samples
Tape and Reel
Evaluation kit
Product Description
The SE2579U is a complete 802.11 b/g/n WLAN RF
front-end module with a Bluetooth port. The device
provides all the functionality of the power amplifier,
power detector, filter, Switch, Low Noise Amplifier,
2170 MHz notch filtering and associated matching.
The SE2579U provides a complete 2.4 GHz WLAN
RF solution from the output of the transceiver to the
antennas, and from the antennas to the input of the
transceiver, in an ultra compact form factor.
The SE2579U is designed for ease of use, with all the
critical matching and harmonic filtering integrated,
also offering a simple 50 Ω interface to the antenna.
The SE2579U includes a low noise amplifier to
increase the receive sensitivity of embedded solutions
to improve range or to overcome the insertion loss of
cellular filters often included for mobile applications. It
offers simultaneous WLAN and Bluetooth receive
mode.
The SE2579U 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.
Functional Block Diagram
BT
RX
VCC1
TX
VCC3
4
1
2
3
VCC1
VCC2
4
CBTR
ANT
1 _CBTB
2
CRX
3
CTX
DET LEN PEN
Figure 1: Functional Block Diagram
DST-00290 ƒ Rev 1.6 ƒ September-20-2009
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