2.4 GHz 802.11b/g/n Power Amplifier

The SE2574BL-R 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 0.9mm form factor.

The SE2574BL-R is designed for ease of use, with all the critical input and output matching integrated. The SE2574BL-R 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.


Product LifecycleIn Production
Frequency Range (GHz)2.4-2.5
Replacement Part SE2574BL-RC
Test Frequency (GHz)2.45
Gain Typ. (dB)27
Typ. POUT (dBm)
OIP3 (dBm)
P1 dB (dBm)25
Power Added Efficiency (%)
VCC (V)3.3
Quiescent Current Typ. (mA)
Noise Figure Typ. (dB)
PackageQFN, 8-pin
Package (mm)2 x 2 x 0.9


  • Dual Mode IEEE802.11b & IEEE802.11g
  • Integrated PA, digital bias control, 50Ω input and output match, 3.2GHz TX Filter.
  • Integrated harmonic filter.
  • Integrated load insensitive Power Detector, with <1dB error at 2:1 mismatch
  • 21 dBm Output Power, 802.11b, 11 Mbps
  • 18.5dBm @ 3.0 % EVM, 802.11g, 54 Mbps
  • 2.3 V to 4.8 V direct to battery supply
  • Lead free, Halogen free, ROHS compliant , 2 x2x0.9 mm QFN package, MSL 1

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