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RFSA2113
Wide Bandwidth Voltage Controlled Attenuator
Package Style: MCM, 16-Pin, 1.175mm x 3.2mm x3.2mm
Features
Patent Pending Circuit Architecture Broadband 50MHz to 18,000MHz Frequency Range 30dB Attenuation Range +45dBm IIP3 Typical +75dBm IIP2 Typical High 1dB Compression Point 29dBm Low Supply Current 2mA Typical 3 to 5V Power Supply Linear in dB Control Characteristic Internal Temperature Compensation Class 1C ESD ( 1000V ) Complete Solution in a Small 3.2mm x 3.2mm, QFN Package
Applications
Point to Point Radio Test Instrumentation Microwave Radio High Linearity Power Control
GND VC VDD SLOPE
13 8 14 7 15 6 16 5
EN 1 GND 2 RFIN 3 GND 4
CONTROL BLOCK
ATTEN
12 GND 11 GND 10 RFOUT 9 GND
GND GND GND GND
Functional Block Diagram
Product Description
RFMD’s RFSA2113 is a fully monolithic analog voltage controlled attenuator (VCA) featuring exceptional linearity over a typical temperature compensated 30dB gain control range. The RFSA2113 features a wide bandwidth up to 18GHz. 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 RFSA2113 draws a very low 2mA current. This attenuator is matched to 50Ω over its rated control range and frequency with no external matching components required. Typical VCA’s in this performance are based on compound semiconductor GaAs FET MMICs that require 1 to 2 negative voltages for control. This game changing product incorporates the complete solution in a small 3.2mm x 3.2mm MCM package that reduces the footprint in area and simplifies the control aspects over conventional compound semiconductor attenuator approaches.
Ordering Information
RFSA2113SR RFSA2113SQ RFSA2113TR13 RFSA2113PCK-410
7” Reel with 100 pieces Sample bag with 25 pieces 13” Reel with 2500 pieces 50MHz to 18,000MHz PCBA with 5-piece sample bag
DS140616
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 (+1) 336-678-5570 or
[email protected].
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RFSA2113
Absolute Maximum Ratings
Parameter
Rating
Unit
Supply Voltage (VDD) SLOPE, VC, EN Pins
-0.5 to 6 -0.5 to 6
V V
RF Input Power Note 1
+23 dBm
Operating Temperature
-40 to +85
°C
Storage Temperature
-55 to +150
°C
Junction Temperature
+125
°C
ESD Rating (HBM)
1000
V
Note 1: Peak power of +29dBm allowable when RMS power does not exceed +23dBm.
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Parameter
Specification Min. Typ. Max.
Unit
Condition
General
Supply Voltage Supply Current Operating Temperature Thermal Resistance RF Input Power RF Performance Frequency Range
Minimum Insertion Loss
Gain Control Range
Gain vs. Temperature Return Loss Relative Phase
Input 1dB Compression Point Input IP3 Input IP2 Input IH2 Input IH3 Control Voltage Control Range, Positive Attenuation Slope Voltage Control Range, Negative Attenuation Slope Voltage Control Pin Current SLOPE and EN Pins Logic Low SLOPE and EN Pins Logic High Settling Time
3.0 5 5.5 V Internal Voltage Regulator
2 3.5 mA
-40 85 °C
175 °C/W RF input must be RFIN pin
23
dBm
Continuous RMS operation at the RFIN pin
50
18000
MHz
2 dB 1GHz
3 dB 10GHz
4.5 dB 18GHz
34 dB 1GHz
32 dB 10GHz
28 dB 18GHz
1
dB
Peak to peak gain variation over temperature for fixed control voltage
15 dB
22
Deg
Insertion phase at 15dB attenuation relative to minimum insertion loss
29
dBm
Peak power of +29dBm allowable when RMS power does not exceed +23dBm
45
dBm
PIN + (IM3dBC/2)
75
dBm
PIN + IM2dBC, IM2 is F1+F2
80
dBm
PIN + H2dBC, H2 is second harmonic
50
dBm
PIN + (H3dBC/2), H3 is third harmonic
0 2.5 V 2.5V control voltage is lowest insertion loss, SLOPE pin logic high
0 2.5 V 0V control voltage is lowest insertion loss, SLOPE pin logic low
1.2 µA VC pin set to 2.5V
0.4 V
1V
2
µsec
1dB attenuation change settling within
0.1dB of final value.
Note: Typical performance at nominal conditions unless otherwise noted: Supply voltage=5.0V, Operating temperature=25°C, RF Frequency 10GHz
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7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or
[email protected].
DS140616
RFSA2113
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Measured Positive Attenuation Slope Performance
Note: Data includes PCB and connector losses except fo.