DATA SHEET

SE2574BL-R: 2.4 GHz 802.11b/g/n Power Amplifier

Skyworks Solutions, Inc. • Phone [949] 231-3000 • sales@skyworksinc.com • www.skyworksinc.com

202675G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 6, 2024

1

Applications



IEEE802.11b DSSS WLAN



IEEE802.11g,n OFDM WLAN



Embedded, SiP modules

Features



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

Ordering Information

Part No.

Package

Remark

SE2574BL-R

8 pin QFN

Samples

SE2574BL-R

8 pin QFN

Tape and Reel

SE2574BL-R-

EK1

N/A

Evaluation kit

Product Description

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.

Functional Block Diagram

Figure 1: Functional Block Diagram

Pdet

EN

50ohm

Match

VCC

Detector

Bias Circuitry

VCC2

50ohm Match

& harmonic

Filter

3.2GHz

Filter

RF Out

RF IN