RFDA2125 Datasheet, PDF (1/26 Pages) RF Micro Devices – Digital Controlled Variable Gain Amplifier 400MHz to 2700MHz, 6-Bit 0.5dB LSB Control

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RFDA2125
Digital Controlled Variable Gain Amplifier
400MHz to 2700MHz, 6-Bit 0.5dB LSB Control
Package Style: MCM 32-Pin, 5.2mm x 5.2mm
Features
Frequency Range 400MHz to
2700MHz
6-Bit Digital Step Attenuator
SPI Serial Control Programming
Max Gain = 29.5dB Typical at
2140MHz
Gain Control Range = 31.5dB
(0.5dB Step Size)
OIP3/P1dB = +44/25dBm Typical
at 2140MHz
Single +5V Supply
Small 32-Pin, 5.2mm x 5.2mm,
MCM
Power-up Programming
SPI_CLK 1
SPI_PUP 2
GND 3
Vamp1 4
GND 5
GND 6
RF_IN 7
GND 8
24 GND
23 GND
AMP2 22 GND
21 Amp2_IN
20 GND
19 GND
DSA
18 GND
17 GND
Applications
Cellular, 3G Infrastructure
WiBro, WiMax, LTE
Microwave Radio
High Linearity Power Control
Functional Block Diagram
Product Description
RFMD’s RFDA2125 is a digital controlled variable gain amplifier for
broadband applications with external matching to allow for
configurations in different bands with a single module. It features
exceptional linearity with noise figure less than 5.0dB in its maximum
gain state. The gain of the 6-bit digital step attenuator is programmed
with a serial mode control interface (SPI). The RFDA2125 is packaged in
a small 5.2mm x 5.2mm leadless laminate MCM, which contains plated
through thermal vias for ultra-low thermal resistance.
Ordering Information
RFDA2125SR
RFDA2125SQ
RFDA2125TR13
RFDA2125PCK-410
7” Sample reel with 100 pieces
Sample bag with 25 pieces
13” Reel with 2500 pieces
400MHz to 2700MHz PCBA with 5-piece sample bag
DS130326
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ an d UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trademark
owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademark s are the property of their respective owners. ©2006, 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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