SE2548A

Dual Band 802.11a/b/g/n Wireless LAN Front End

Please note: this product is being discontinued and is not recommended for new designs.

The SE2548A is a complete 802.11a/b/g/n WLAN RF front-end module providing all the functionality of the power amplifiers, filtering, power detector, T/R switch, diplexers and associated matching. The SE2548A provides a complete 2.4 GHz and 5 GHz WLAN RF solution from the output of the transceiver to the antenna 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 SE2548A also includes a transmitter power detector for each band and transmit chain with 20 dB of dynamic range for each transmit chain. Each transmit chain has a separate digital enable control for transmitter power ramp on/off control. The power ramp rise/fall time is less than 0.7 μsec.

The device also provides a notch filter from 3.260- 3.267 GHz and 3.28-3.89 GHz prior to the input of each 2.4 GHz and 5 GHz power amplifiers, respectively.

The SE2548A packaged in 5mm x 5mm x 1.0mm, Halogen free, Lead free, ROHS compliant, MSL 3 LGA package.

Data Sheets

Talk to Sales ECAD Model

Specifications

Frequency (GHz) Min.2.4
4.9

Frequency (GHz) Max.2.5
5.875

802.11 WLAN Standarda/b/g

Antenna Ports1

ArchitectureDual Band 802.11a/b/g/n
WLAN Front End

Typ. P_OUT @ 2.5% EVM (dBm)

175
250
170

Typ. P_OUT @ 3.0% EVM (dBm)16.5
21
18

Typ. Tx Gain (dB)24
26
26

V_CC (V)

PackageLGA, 32-pin

Package (mm)5 x 5 x 1.0

Features

All RF ports matched to 50 Ω
Integrated 2.4 GHz PA, 5 GHz PA, TX Filter, T/R switches and diplexers
Integrated Power Detector for each TX Chain
21 dBm O/P Power, 802.11b, 11 Mbits, ACPR = 35 dBc
18 dBm @ 3.0 % EVM, 802.11g, 54 Mbits
16.5 dBm @ 3.0 % EVM, 802.11a, 54 Mbits
Single supply voltage: 3.3 V ± 10 %
Lead free, Halogen free, RoHS compliant, MSL 3
5mm x 5mm x 1.0mm, LGA Package

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