2.4 GHz High Efficiency Wireless LAN PA

The SE2568U is a complete 802.11 b/g WLAN discrete power amplifier. The device provides all the functionality of the power amplifier, power detector, filter, associated input, inter-stage and output matching in an ultra compact 2mm x 2mm x 0.5mm form factor.

The SE2568U is designed for ease of use, with all the critical input and output matching integrated. The SE2568U includes a transmitter power detector with 20 dB of dynamic range and a digital Enable for power on/off control. Harmonic filters and an input 3.2GHz LO rejection filter are integrated on-chip. The power ramp rise/fall time is 0.7 µs typical.

Please note: SE2568U-R is being discontinued and is not recommended for new designs. The suggested replacement is SE2574BL-R.


    • Dual Mode IEEE802.11b & IEEE802.11g
    • Integrated PA, digital bias control, 50! input and output match, 3.2GHz TX Filter.
    • Integrated harmonic filter.
    • Integrated load insensitive Power Detector, with <1dB error at 2:1 mismatch
    • 20 dBm, 802.11b, 11 Mbps, ACPR <-30 dBc, 3.3V
    • 18dBm 802.11g, @ 3.0 % EVM, 54 Mbps, 3.3V
    • 20.5dBm, 802.11g @ 3.0 % EVM, 54Mbps, 5.0V
    • Lead free, Halogen free, ROHS compliant, 2 x2x0.5 mm QFN package, MSL 1

Images & Diagrams


    • Frequency Range (GHz)
    • 2.4-2.5
    • Test Frequency (GHz)
    • 2.45
    • Gain Typ. (dB)
    • 27
    • Power Added Efficiency (%)
    • OIP3 (dBm)
    • P1 dB (dBm)
    • 25
    • VCC (V)
    • 3.3
    • Quiescent Current Typ. (mA)
    • 90
    • Noise Figure Typ. (dB)
    • Package
    • QFN, 8-pin
    • Package (mm)
    • 2 x 2 x 0.5

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