RFDA0025 Datasheet, PDF (1/11 Pages) RF Micro Devices – DIGITAL CONTROLLED VARIABLE GAIN AMPLIFIER

RFDA0025Dig-
ital Controlled
Variable Gain
Amplifier
RFDA0025
DIGITAL CONTROLLED VARIABLE GAIN
AMPLIFIER
Package: MCM 32-Pin, 5.2mmx5.2mm
Features
 50MHz to 850MHz Operation
 6-Bit Digital Step Attenuator
 Serial Control Interface
 31.5dB Attenuation Range
(0.5dB Step)
 High OIP3/P1dB=+42/20dBm
 Single +5V Supply
 Footprint Compatible with 32-Pin
5mmx5mm QFN
Applications
 Transceiver IF DVGA
 Cellular, PCS, 3G Infrastructure
 Wireless Data, Satellite
Terminals
32
AMPIN ¹
GND ²
GND ³
ATTOUT ⁴
ACG1 ⁵
ACG2 ⁶
ACG3 ⁷
ACG4 ⁸
9
31
30
29
DSA
10
11
12
28
27
26
6-bit SPI
13
14
15
25
24 _NC
23 _NC
22 _NC
21 _NC
20 _NC
19 _NC
18 _NC
17 _Vdd
16
E-pad
GND
Functional Block Diagram
Product Description
RFMD’s RFDA0025 is a digital controlled variable gain amplifier featuring high lin-
earity over the entire gain control range. The 6-bit digital step attenuator is pro-
grammed with a serial mode control interface. The RFDA0025 is packaged in a
small 5.2mmx5.2mm leadless laminate MCM with plated through thermal vias for
ultra low thermal resistance. The footprint for this module is directly compatible
with most 32-pin 5mmx5mm QFNs. The amplifier’s bias choke and DC blocks are
external, allowing for optimum performance over specific bands within 50MHz to
850 MHz.
DS120817
Ordering Information
RFDA0025SQ
Sample bag with 25 pieces
RFDA0025SR
7” Reel with 100 pieces
RFDA0025R7
7” Reel with 750 pieces
RFDA0025R13
13” Reel with 2500 pieces
RFDA0025PCK-410 50MHz to 850MHz PCBA with 5-piece sample bag
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
BiFET HBT
LDMOS
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. ©2011, 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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