RFSA2724 Datasheet, PDF (1/9 Pages) RF Micro Devices – Serial Controlled Digital Step Attenuator, 50MHz to 4000MHz

RFSA2724Par-
allel Controlled
Digital Step
Attenuator,
50 MHz to
400 MHz
RFSA2724
Serial Controlled Digital Step Attenuator,
50MHz to 4000MHz
Package: MCM, 24-Pin, 4.2mm x 4.2mm
Features
„ Frequency Range 50MHz to
4000MHz
„ 7-Bit, 31.75dB Range, 0.25dB
Step
„ High Linearity, IP3 > 50dBm
„ 3V and 5V Logic Compatible
„ Serial-to-Parallel Controller
„ Serial Programming Interface
„ Power-up Programming Modes
„ On-chip ESD Protection Class 2
< 4000V
„ Single Supply, 3V to 5V Operation
„ Footprint Compatible with Most
24-Pin, 4mm x 4mm QFNs
Applications
„ Transceiver IF Applications
„ Cellular, PCS, GSM, UMTS, LTE,
„ WiMax/WiFi
„ Wireless Data, Satellite
Terminals
„ Test Equipment
24
23
22
21
20
19
GND/NC 1
VDD 2
GND/NC 3
RF1 ⁴
GND/NC 5
GND/NC 6
SPI
7-Bit DSA
18 GND/NC
17 GND/NC
16 GND/NC
15 _RF2
14 _GND/NC
13 GND/NC
7
8
9
10
11
12
Functional Block Diagram
Product Description
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.
Ordering Information
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
DS130212
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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