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Optimum Technology Matching® Applied

GaAs HBT

InGaP HBT

GaAs MESFET

SiGe BiCMOS

Si BiCMOS

SiGe HBT

GaAs pHEMT

Si CMOS

Si BJT

GaN HEMT

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. ©2006, 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 sales-support@rfmd.com.

Ordering Information

BiFET HBT

LDMOS



RFSA2624

SERIAL CONTROLLED DIGITAL STEP ATTENUATOR

50MHz to 4000MHz, 6-BIT, 0.5dB LSB

RFMD’s RFSA2624 is a 6-bit Digital Step Attenuator (DSA) that features high linear-

ity over the entire 31.5dB gain control range with excellent step accuracy in 0.5dB

steps. The RFSA2624 is programmed via a serial mode control interface that is

both 3V and 5V compatible. The RFSA2624 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, QFN packages.

Features



Frequency Range 50MHz to

4000MHz



6-Bits, 31.5dB Range, 0.5dB

Step



High Linearity, OIP3>48dBm

through over 700MHz to

2700MHz



3V and 5V Logic Compatible



Serial-to-Parallel Controller



Serial Programming Interface



Power-up Programming Modes



On-chip ESD Protection >500V

HBM



Single Supply, 3V to 5V

Operation



Footprint compatible with most

24-pin, 4mm QFNs

Applications



Transceiver IF Applications



Cellular, PCS, GSM, UMTS, LTE,

WiMax/WLAN



Wireless Data, Satellite

Terminals



Test Equipment

DS110408



Package: MCM, 24-Pin, 4.2mmx4.2mm

RFSA2624

Serial Con-

trolled Digital

Step Attenua-

toR 50MHz to

4000MHz, 6-

Bit, 0.5dB LSB

RFSA2624SR

7” Reel with 100 pieces

RFSA2624SQ

Sample bag with 25 pieces

RFSA2624TR7

7” Reel with 750 pieces

RFSA2624TR13

13” Reel with 2500 pieces

RFSA2624PCK-410

50MHz to 4000MHz PCBA with 5-piece sample bag