RFDA0035 Datasheet, PDF (1/11 Pages) RF Micro Devices – DIGITAL CONTROLLED IF DUAL VGA 5 BIT 1dB LSB CONTROL

RFDA0035Dig-
ital Controlled
IF Dual VGA
RFDA0035
DIGITAL CONTROLLED IF DUAL VGA
5 BIT 1dB LSB CONTROL
Package: QFN 32-Pin, 5.0mmx5.0mm
Features
 Dual Independent Digitally
Controlled VGAs
 Bandwidth of 500MHz (-3dB)
 Gain Control Range=31dB (1dB
Step Size)
 Differential Input and Output
 Max Gain=19.0dB@180MHz
 Noise Figure: 7.5dB@Maximum
Gain
 High OIP3/P1dB=+42/21dBm
@ 180 MHz
 Relative Phase Shift<1 °
 Single +5V Supply
 Dual 5-Bit Parallel Control
Interface
 Individual Enable Control for
Each VGA
 Current Adjustable for IP3 Trade
Offs
 Small 32-Pin, 5.0mmx5.0mm,
QFN
Applications
 Differential ADC Drivers
 Main and Diversity IF Sampling
Receivers
 Wideband Multichannel
Receivers
 Instrumentation
32 31 30 29 28 27 26 25
A2 1
24 OPA+
A3 2
A4 3
5-Bit Step
Attenuator
AMP
23 OPA-
22 ENBA
VCMA 4
21 RESA
VCMB 5
20 RESB
B4 6
B3 7
5-Bit Step
Attenuator
AMP
19 ENBB
18 OPB-
B2 8
17 OPB+
9 10 11 12 13 14 15 16
Functional Block Diagram
Product Description
RFMD's RFDA0035 is a dual-channel, digitally controlled variable gain amplifier fea-
turing high linearity over the entire 32 gain control steps. It features independent
channel power-up enable, independent channel current adjustability for optimizing
DC versus IP3 and a 200 differential input and output impedance.
Ordering Information
RFDA0035SR
7” Sample reel with 100 pieces
RFDA0035SQ
25 piece Sample bag
RFDA0035TR7
7” Reel with 750 pieces
RFDA0035TR13 13” Reel with 2500 pieces
RFDA0035PCK-410 50MHz to 500MHz PCBA with 5-piece sample bag
DS110329
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
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. ©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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