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PDF RFDA0056 Data sheet ( Hoja de datos )
| Número de pieza | RFDA0056 | |
| Descripción | DIGITAL CONTROLLED VARIABLE GAIN AMPLIFIER | |
| Fabricantes | RF Micro Devices | |
| Logotipo |  |
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RFDA0056Dig-
ital Controlled
Variable Gain
Amplifier
300MHz to
1100MHz, 6-
Bit 0.5dB LSB
Control
RFDA0056
Digital Controlled Variable Gain Amplifier 300MHz
to 1100MHz, 6-Bit 0.5dB LSB Control
Package: MCM 28-Pin, 6.0mm x 6.0mm
Features
Frequency Range 300MHz to
1100MHz
Full Internal Matching and No
External Bias Inductors
6-Bit Digital Step Attenuator
SPI Serial Control Programming
Gain Control Range = 31.5dB
(0.5dB Step Size)
High OIP3/P1dB = +44/25dBm
Typical at 450MHz
Single +5V Supply
Small 28-Pin, 6.0mm x 6.0mm,
MCM
Power-up Programming
Applications
Cellular, 3G Infrastructure
WiBro, WiMax, LTE
Microwave Radio
High Linearity Power Control
SPI_LE 1
SPI_DATA 2
SPI_CLK 3
PUP 4
GND 5
RF_IN 6
GND 7
21 GND
20 GND
19 GND
Z e 18 GND
AMP2
17 GND
16 RF_OUT
15 GND
Functional Block Diagram
Product Description
RFMD's RFDA0056 is a digital controlled variable gain amplifier featuring high lin-
earity over the entire gain control range. The gain of the 6-bit digital step attenuator
is programmed with a serial mode control interface (SPI). The RFDA0056 is pack-
aged in a small 6.0mm x 6.0mm leadless laminate MCM, which contains plated
through thermal vias for ultra-low thermal resistance. This module is easy to use
with no external matching components required.
DS120926
Ordering Information
RFDA0056SQ
Sample bag with 25 pieces
RFDA0056SR
7” Reel with 100 pieces
RFDA0056R7
7” Reel with 750 pieces
RFDA0056R13
13” Reel with 2500 pieces
RFDA0056PCK-410 300MHz to 1100MHz 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
SOI
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 [email protected].
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1 page  
RFDA0056
Truth Table
Control Bit
D5 D4 D3 D2 D1 D0
111111
111110
111101
111011
110111
101111
011111
000000
Gain Relative to Max Gain
0dB
-0.5 dB
-1 dB
-2 dB
-4 dB
-8 dB
-16 dB
-31.5 dB
Serial Port Interface:
SPI Timing Diagram
t6
t1
t2
t3
t4 t5
CLK
t8
DATA
LE
t7
DOUT
t9
t10
SPI Timing Diagram Specifications
Parameter
Limit
Unit Comment
t1
25
MHz max
CLK Frequency
t2
20
ns min
CLK High
t3
20
ns min
CLK Low
t4
5
ns min
DATA to CLK Setup Time
t5
5
ns min
DATA to CLK Hold Time
t6
30
ns min
DATA Valid
t7
5
ns min
LE to CLK Setup Time
t8
5
ns min
CLK to LE Setup Time
t9
10
ns min
LE Pulse Width
t10
20
ns max
Output Set
DS120926
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
5 of 10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet RFDA0056.PDF ] | |
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