Dual-Band 802.11n Wireless LAN Front-end Module

The SE2577L is a dual-band passive 802.11n WLAN RF front-end module providing the functionality of spurious filters, switches and diplexer. All RF ports are matched to 50 Ω to simplify PCB layout and the interface to the transceiver RFIC.

The Front End is packaged in a very compact RoHS compliant, Halogen Free, and Lead Free 3mm x 3mm x 0.9mm QFN style package.

Please note: SE2577L-R and SE2577L-RC are being discontinued and are not recommended for new designs.


    • Passive front end, including two SPDT switches and diplexer
    • Integrated 2 GHz low pass filter
    • Able to accept 20 dBm of linear input power in both bands with no EVM contribution
    • Lead free, Halogen Free and RoHS compliant
    • Thin lead-free plated QFN package (20-pin, 3 x 3 x 0.9 mm, (MSL1, 260 °C per JEDEC J-STD-020)

Images & Diagrams


    • Frequency (GHz) Min.
    • 2.4
    • Frequency (GHz) Max.
    • 2.5
    • 802.11 WLAN Standard
    • a/b/g/n
    • Antenna Ports
    • 1
    • Architecture
    • DUAL BAND 802.11a/b/g/n
    • Typ. POUT @ 2.5% EVM (dBm)
    • Typ. Current @ VCC = 3.3 V (mA)
    • Typ. POUT @ 3.0% EVM (dBm)
    • Typ. Tx Gain (dB)
    • VCC (V)
    • Package
    • QFN, 20-pin
    • Package (mm)
    • 3 X 3 X 0.9

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