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SKY12147-12LF

Description
Variable Attenuator, 500MHz Min, 2500MHz Max, 3.4dB Insertion Loss-Max, ROHS COMPLIANT, SOIC-8
CategoryWireless rf/communication    Radio frequency and microwave   
File Size168KB,3 Pages
ManufacturerSkyworks
Websitehttp://www.skyworksinc.com
Environmental Compliance
Download Datasheet Parametric View All

SKY12147-12LF Overview

Variable Attenuator, 500MHz Min, 2500MHz Max, 3.4dB Insertion Loss-Max, ROHS COMPLIANT, SOIC-8

SKY12147-12LF Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerSkyworks
package instructionROHS COMPLIANT, SOIC-8
Reach Compliance Codeunknown
Nominal attenuation32 dB
Characteristic impedance50 Ω
structureCOMPONENT
Maximum input power (CW)16.99 dBm
Maximum insertion loss3.4 dB
Maximum operating frequency2500 MHz
Minimum operating frequency500 MHz
Maximum operating temperature125 °C
Minimum operating temperature-55 °C
RF/Microwave Device TypesVARIABLE ATTENUATOR
Maximum voltage standing wave ratio2.1
PRELIMINARY DATA SHEET
SKY12147-12LF: GaAs IC 35 dB Voltage Variable Attenuator
Single Positive Control 0.5–2.5 GHz
Features
Pin Out
ATTENUATORS
GND
GND
J
2
1
8
Single positive 5 V control voltage
35 dB attenuation Range @ 0.9 GHz
Less than ±1 dB attenuation change over temperature
Excellent linearity performance
Available lead (Pb)-free and RoHS-compliant
J
1
C
BL
GND
2
3
7
C
BL
GND
6
Description
The SKY12147-12LF GaAs IC FET voltage variable attenuator pro-
vides 35 dB attenuation range at 900 MHz controlled by a single
positive voltage. The VVA has a linear transfer curve of 9 dB/V
slope, with input and output VSWR better than 2.1:1 over all states.
Its attenuation range at 1900 MHz is 33 dB. It operates with supply
voltage of 5 V and control voltage of 0 V to 5 V in a low-cost SOIC-
8 package. The RF ports require 100 pF DC blocking capacitors.
V
S
V
C
DC blocking capacitors (C
BL
) supplied externally.
C
BL
= 100 pF for operation >500 MHz.
4
5
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Electrical Specifications at 25 °C
Z
O
= 50
unless otherwise noted
Parameter
Insertion loss (V
C
= 5 V)
Frequency
0.5–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
0.5–0.8 GHz
0.8–1.0 GHz
1.0–1.7 GHz
1.7–2.0 GHz
2.0–2.5 GHz
0.5–2.5 GHz
28
31
30
29
28
Min.
Typ.
2.5
2.8
3.2
32
35
34
33
32
2.1:1
Max.
2.7
3.0
3.4
Unit
dB
dB
dB
dB
dB
dB
dB
dB
Maximum attenuation (V
C
= 0 V)
(1)
VSWR (I/O)
(2)
1. Maximum attenuation includes insertion loss.
2. For worst-case state.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
Skyworks Proprietary Information. • Products and product information are subject to change without notice. • Spring 2006
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