RFSA2524
Serial Con-
trolled Digital
Step Attenua-
tor 50MHz to
4000MHz, 5-
Bit, 1dB LSB
RFSA2524
SERIAL CONTROLLED DIGITAL STEP ATTENUATOR
50MHz TO 4000MHz, 5-BIT, 1dB LSB
Package: MCM, 24-Pin, 4.2mm x 4.2mm
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
GND
VDD
GND
GND
Features
Frequency Range 50MHz to
4000MHz
SPI
GND
RF2
GND
RF1
5-Bits, 31dB Range, 1dB Step
High Linearity, IIP3 >48dBm
3V and 5V Logic Compatible
Serial-to-Parallel Controller
Serial Programming Interface
Power-up Programming Modes
GND
GND
5-Bit DSA
GND
GND
7
8
9
10
11
12
On-chip ESD Protection Class 1C
HBM
Functional Block Diagram
Single Supply, 3V to 5V Operation
Footprint Compatible with Most
24-Pin, 4mm x 4mm, QFNs
Product Description
RFMD's RFSA2524 is a 5-bit digital step attenuator (DSA) that features high linear-
ity over the entire 31dB gain control range with excellent step accuracy in 1dB
steps. The RFSA2524 is programmed via a serial mode control interface that is
both 3V and 5V compatible. The RFSA2524 also offers a rugged Class 1C HBM ESD
rating via on-chip ESD circuitry. The MCM package is footprint compatible with most
24-pin, 4mm x 4mm, QFN packages.
Applications
Transceiver RF and IF
Applications
Cellular, PCS, GSM, UMTS, LTE,
WiMax/WiFi
Wireless Data, Satellite
Terminals
Test Equipment
Ordering Information
RFSA2524SR
RFSA2524SQ
RFSA2524TR7
RFSA2524TR13
7” reel with 100 pieces
Sample bag with 25 pieces
7” reel with 750 pieces
13” reel with 2500 pieces
RFSA2524PCK-410 50MHz to 4000MHz PCBA with 5-piece sample bag
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
GaN HEMT
BiFET HBT
Si CMOS
Si BJT
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.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
DS120706
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