SKY12145-315 Datasheet, PDF (1/4 Pages) Skyworks Solutions Inc. – HIP3™ Variable Attenuator for UMTS Base Stations

DATA SHEET
SKY12145-315: HIP3™ Variable Attenuator
for UMTS Base Stations
Features
● _{23 dB attenuation range}
● _{1.5 dB insertion loss, 1.5:1 SWR}
● _{0–12 V control voltage}
● _{43 dBm IP3}
● _{Small footprint LGA package}
● _{Designed for UMTS base stations}
● _{Lead (Pb)-free and RoHS-compliant}
Description
The SKY12145-315 is a voltage controlled, variable attenuator
from Skyworks series of HIP3™ components. It is specifically
designed and specified for use as a wide dynamic range, low-
distortion attenuator for UMTS base station applications centered
at 2140 MHz. The SKY12145-315 employs a monolithic
quadrature hybrid and a pair of silicon PIN diodes to achieve the
specified low-distortion performance. It operates from 0–12 V
at 1.6 mA typical control current at maximum attenuation. The
SKY12145-315 is packaged in a small outline LGA (Land Grid
Array) surface mount package with the internal elements affixed
to an organic BT substrate.
NEW Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Connection Diagram
RF
In/Out
10 pF
RF
In/Out
10 pF
Electrical Specifications at 25 °C
Z_O = 50 Ω, unless otherwise noted
Parameter
UMTS frequency range (BW)
Control voltage (V_CONTROL) range
Insertion loss in BW
Attenuation range
VSWR in BW
IP3
IM3
Condition
F_O ± 12.5 MHz
V_CONTROL = 0 V
At F_O, V_CONTROL = 10 V
At F_O, V_CONTROL = 12 V
2140/2145 MHz, V_CONTROL = 0 V
8 dBm
Min.
Typ.
2110
0
18
23
43
Vcontrol
10 pF
Control
Voltage
Vcontrol
10 pF
Max.
Unit
2170
MHz
12
V
1.5
dB
22
dB
–
dB
1.5
dBm
-70
dBc
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
200269 Rev. B • Skyworks Proprietary Information • Products and product information are subject to change without notice. • January 4, 2006
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