SKY12228-12LF Datasheet, PDF (1/9 Pages) Skyworks Solutions Inc. – High IIP3, 0.7 to 1.0 GHz Variable Attenuator

DATA SHEET
SKY12228-12LF: High IIP3, 0.7 to 1.0 GHz Variable Attenuator
Applications
 Automatic power leveling/gain control circuits in cellular base
stations and point-to-point radio IF chains
 General wireless systems including LTE, WCDMA, VSAT, and
military communications
Control
Current
Control
Current
Features
 0.7 to 1.0 GHz broadband operating range
 Attenuation range: >18.5 dB
 Low insertion loss: 0.7 dB
 High IIP3: +60 dBm typical
 Low current consumption: <2 mA @ maximum attenuation
 SOIC (8-pin, 6.0 x 4.9 mm) package
(MSL3, 260 C per JEDEC J-STD-020)
Skyworks Green^TM products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green^TM, document number
SQ04–0074.
RF
In/Out
RF
In/Out
Figure 1. SKY12228-12LF Block Diagram
Description
The SKY12228-12LF is a current-controlled variable attenuator
from Skyworks series of high third order input intercept point
(IIP3) components. The device has been designed to operate over
the 0.7 to 1.0 GHz frequency band, but is specifically optimized
for use as a wide dynamic range, low distortion attenuator.
The SKY12228-12LF provides monotonic attenuation performance
over its entire control current range. This attenuator is comprised
of a pair of matched PIN diodes that terminate two ports of its
internal 90-degree hybrid coupler. The diodes are biased using an
external control current signal. The attenuator operates with a
control current range of 0 to 1.5 mA.
A functional block diagram is shown in Figure 1. The pin
configuration and package are shown in Figure 2. Signal pin
assignments and functional pin descriptions are provided in
Table 1.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202500D • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • April 6, 2015
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