RFSA2654 Datasheet, PDF (1/9 Pages) RF Micro Devices – SERIAL CONTROLLED 7 DIGITAL STEP ATTENUATOR 5MHz TO 2000MHz, 6-BIT, 0.5dB

RFSA2654
Serial Con-
trolled 75W
Digital Step
Attenuator
5MHz to
2000MHz, 6-
Bit, 0.5dB LSB
RFSA2654
SERIAL CONTROLLED 75DIGITAL STEP
ATTENUATOR 5MHz TO 2000MHz, 6-BIT, 0.5dB
Package: MCM, 24-Pin, 4.2mm x 4.2mm
24
23 22
21
20 19
Features
 Frequency Range 5MHz to
2000MHz
 6-Bits, 75, 31.5dB Range,
0.5dB Step
 High Linearity, IIP3 >50dBm
 3V and 5V Logic Compatible
 Serial-to-Parallel Controller
 Serial Programming Interface
 Power-up Programming Modes
 On-chip ESD Protection Class 1C
HBM
 Single Supply, 5V Operation
 Footprint Compatible with Most
24-Pin, 4mm x 4mm, QFNs
Applications
 CATV/Satellite Set Top Boxes
 Cable Modems
 CATV Infrastructure
 Data Network Equipment
GND 1
VCC 2
GND 3
RF1 4
GND 5
GND 6
SPI
6-Bit DSA
18 GND
17 GND
16 GND
15 RF2
14 GND
13 GND
7
8
9
10
11 12
Functional Block Diagram
Product Description
RFMD's RFSA2654 is a 6-bit, 75 digital step attenuator (DSA) that features high
linearity over the entire 31.5dB gain control range with excellent step accuracy in
0.5dB steps. The RFSA2654 is programmed via a serial mode control interface that
is both 3V and 5V compatible. The RFSA2654 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.
Ordering Information
RFSA2654SQ
Sample bag with 25 pieces
RFSA2654SR
7” Sample reel with 100 pieces
RFSA2654TR13 13” Reel with 2500 pieces
RFSA2654PCK-410 5MHz to 2000MHz PCBA with 5-piece sample bag
DS121031
Optimum Technology Matching^® Applied
 GaAs HBT
SiGe BiCMOS
GaAs pHEMT
GaN HEMT
 GaAs MESFET
Si BiCMOS
Si CMOS
BiFET HBT
InGaP HBT
SiGe HBT
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 ([phone] or [e-mail].
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