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RF Micro Devices

RFSA2033 Datasheet Preview

RFSA2033 Datasheet

Low Loss Voltage Controlled Attenuator

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RFSA2033
Low Loss Voltage Controlled Attenuator
50MHz to 6000MHz
Package: QFN, 16-Pin, 0.9mm x 3mm x 3mm
Features
Patent Pending Circuit Architecture
Broadband 50MHz to 6000MHz
Frequency Range
Low Minimum Insertion Loss (1.0dB
Typical at 2GHz)
25dB Attenuation Range
+40dBm IIP3 Typical
+75dBm IIP2 Typical
High 1dB Compression Point
>+24dBm
Low Supply Current 2.5mA Typical
3V to 5V Power Supply
Linear in dB Control Characteristic
Internal Temperature Compensation
Low Distortion with -65dBc CSO, CTB
and XMOD
Class 2 ESD (2000V HBM)
Complete Solution in a Small 3mm x
3mm, QFN Package
Applications
Cellular, 3G Infrastructure
WiBro, WiMax, LTE
Microwave Radio
High-linearity Power Control
Cable Modems
CATV
GND 1
GND 2
RFIN 3
GND 4
CONTROL
BLOCK
ATTEN
12 EN
11 GND
10 RFOUT
9 GND
Functional Block Diagram
Product Description
RFMD’s RFSA2033 is a fully monolithic analog voltage controlled attenuator (VCA)
featuring exceptional linearity over a typical temperature-compensated 25dB gain
control range and low insertion loss of 1.0dB typical. It incorporates a
revolutionary new circuit architecture to solve a long standing industry problem:
high IP3, high attenuation range, low DC current, broad bandwidth, and
temperature-compensated linear in dB control voltage characteristic. This voltage
controlled attenuator is controlled by a single positive control voltage with on chip
DC conditioning circuitry. The slope polarity of the control voltage versus gain is
selectable. The RFSA2033 draws a very low 2.5mA current. This attenuator is
matched to 50Ω over its rated control range and frequency with no external
matching components require. Typical VCA’s in this performance category have
poor inherent attenuation versus temperature and poor nonlinear attenuation
versus control voltage characteristics. To correct these shortcomings, other VCA’s
require extensive off chip analog support circuitry that consume valuable PCB
area and additional DC power. This game changing product incorporates the
complete solution in a small 3mm x 3mm QFN package that reduces the footprint
in area and reduces the DC power over conventional PIN diode approaches.
Ordering Information
RFSA2033SQ
RFSA2033SR
RFSA2033TR7
RFSA2033PCK-410
RFSA2033PCK-411
Sample bag with 25 pieces
7” Reel with 100 pieces
7” Reel with 2500 pieces
50MHz to 6000MHz PCBA with 5-piece sample bag
CATV, 75PCBA with 5-piece sample bag
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, POLARISTM TOTAL RADIOTM and UltimateBlueTM 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
trademarks are the property of their respective owners. ©2009, RF Micro Devices, Inc.
DS1300418
7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical
1 of 22
Support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com




RF Micro Devices

RFSA2033 Datasheet Preview

RFSA2033 Datasheet

Low Loss Voltage Controlled Attenuator

No Preview Available !

RFSA2033
Absolute Maximum Ratings
Parameter
Supply Voltage (VDD)
SLOPE, VC, EN Pins
RF input Power
Operating Temperature (TCASE)
Storage Temperature
Junction Temperature
ESD Rating (HBM)
Rating
-0.5 to +6
-0.5 to +6
+27
-40 to +85
-65 to +150
+125
2000
Unit
V
V
dBm
°C
°C
°C
V
Parameter
General
Supply Voltage
Supply Current
Operating Temperature
Thermal Resistance
RF Input Power
RF Performance
Frequency Range
Minimum Insertion Loss
Gain Control Range
Gain versus Temperature
Return Loss
Relative Phase
Input 1dB Compression Point
Input IP3
Input IP2
Input IH2
Input IH3
Composite Performance (CATV)
CSO
CTB
XMOD
Nominal Operating Parameters
Specification
Min. Typ. Max.
3 5 5.5
2.5 3.5
-40 85
101
24
50 6000
1
25
1
15
7
24
40
75
80
45
-65
-65
-65
Unit
V
mA
°C
°C/W
dBm
MHz
dB
dB
dB
dB
Deg
dBm
dBm
dBm
dBm
dBm
dBc
dBc
dBc
Condition
50Ω Application Circuit
Internal voltage regulator
50Ω Application Circuit
Peak to peak gain variation over temperature for
fixed control range
Insertion phase at 15dB attenuation relative to
minimum insertion loss
PIN + (IM3dBc/2)
PIN + IM2dBc, IM2 is F1 +F2
PIN + H2dBc, H2 is second harmonic
PIN + (H3dBc/2), H3 is third harmonic
75Ω Application Circuit
112 Channels, Flat tilt, 32dBmV/Channel
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless ConnectivityTM, PowerStar®, POLARISTM TOTAL RADIOTM and UltimateBlueTM 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 trademarks are the property of their respective owners. ©2009, RF Micro Devices, Inc.
DS130418
7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical
2 of 22
Support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com


Part Number RFSA2033
Description Low Loss Voltage Controlled Attenuator
Maker RF Micro Devices
Total Page 22 Pages
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