RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS150626

For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice@rfmd.com.

RF MICRO DEVICES

trademarks, and registered trademarks are the property of their respective owners. ©2013, RF Micro Devices, Inc.

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RFSA2534

50MHz to 4000MHz, Digital Step Attenuator

RFMD’s RFSA2534 is a 5-bit digital step attenuator (DSA) that

features high linearity over the entire 15.5dB gain control range

with 0.5dB steps. The RFSA2534 uses serial control interface. It

has a low insertion loss of 1.3dB at 2GHz. Patent pending circuit

architecture provides Overshoot-free transient switching

performance The RFSA2534 is available in a 4.2mm x 4.2mm

laminate package that is footprint compatible with a 4mm x 4mm

QFN 24 lead package.

Functional Block Diagram

Ordering Information

RFSA2534SQ

Sample bag with 25 pieces

RFSA2534SR

7" Reel with 100 pieces

RFSA2534TR13

13" Reel with 2500 pieces

RFSA2534PCK-410

50MHz to 4000MHz PCBA with 5-piece sample

bag

Package: QFN, 24-pin,

4.2mm x 4.2mm x 0.95mm

Features

■

5-Bit, 15.5dB Range, 0.5dB Step

■

Frequency Range 50MHz to

4000MHz

■

Overshoot-free Transient

Switching Performance

■

High Linearity, Input IP3 = 55dBm

■

Insertion Loss = 1.3dB at 2GHz

■

Serial Control Interface

■

Fast Switching Speed = 200ns

■

Single Supply 3V to 5V Operation

Applications

■

2G through 4G Base Stations

■

Point-to-Point

■

WiMax/WiFi

■

Test Equipment

N/C

N/C

RFOUT

SPI

RFIN

N/C

D/C

N/C

VDD

N/C

N/C

N/C

N/C

RFSA2534