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Functional Block Diagram

RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-

mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2012, RF Micro Devices, Inc.

Product Description

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at ((+1) 336-678-5570 or c

customerservice@rfmd.com.

Ordering Information

12

SPI

RF1

GND/NC

VDD

GND/NC

GND/NC

RF2

GND/NC

GND/NC

GND/NC

GND/NC

GND/NC

7-Bit DSA

11

10

9

8

7

6

5

4

3

2

1

13

14

15

16

17

18

24

23

22

21

20

19

GND/NC

RFSA2724

Serial Controlled Digital Step Attenuator,

50MHz to 4000MHz

RFMD's RFSA2724 is a 7-bit digital step attenuator (DSA) that features high-linear-

ity over the entire 31.75dB gain control range with excellent step accuracy in

0.25dB steps. The RFSA2724 is programmed via a serial mode control interface

that is both 3V and 5V compatible. The RFSA2724 also offers a rugged Class 1B

HBM ESD rating via on-chip ESD circuitry. The MCM package is footprint compatible

with most 24-pin 4mm x 4mm QFN packages.

Features

4000MHz

Step

< 4000V

24-Pin, 4mm x 4mm QFNs

Applications

Terminals

DS130212

Package: MCM, 24-Pin, 4.2mm x 4.2mm

RFSA2724Par-

allel Controlled

Digital Step

Attenuator,

50 MHz to

400MHz

RFSA2724SR

7” Sample reel with 100 pieces

RFSA2724SQ

Sample bag with 25 pieces

RFSA2724TR13

13” Reel with 2500 pieces

RFSA2724PCK-410 50MHz to 4GHz PCBA with 5-piece sample bag