PRODUCT SUMMARY
SKY77170 Power Amplifier Module for WCDMA / HSDPA –
Band I (1920–1980 MHz)
Applications
•
WCDMA handsets
•
HSDPA
Description
The SKY77170 Power Amplifier Module (PAM) is a fully matched 10-pad surface mount module
developed for Wideband Code Division Multiple Access (WCDMA) handsets. This small and efficient
module packs full 1920–1980 MHz bandwidth coverage into a single compact package. The
SKY77170 meets the stringent spectral linearity requirements of HSDPA (High Speed Downlink Packet
Access) data transmission with high power added efficiency for power output of up to 27 dBm. A
directional coupler is integrated into the module thus eliminating the need for any external coupler.
The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all active
circuitry in the module. The MMIC contains on-board bias circuitry, as well as input and interstage
matching circuits. Output match into a 50-ohm load is realized off-chip within the module package to
optimize efficiency and power performance.
The SKY77170 PAM is manufactured with Skyworks’ GaAs Heterojunction Bipolar Transistor (HBT)
process that provides for all positive voltage DC supply operation while maintaining high efficiency
and good linearity. Primary bias to the SKY77170 is supplied directly from any three-cell Ni-Cd, a
single-cell Li-Ion, or other suitable battery with an output in the 3.2 to 4.2 volt range. Power down is
accomplished by setting the voltage on the low current reference pad to zero volts. No external supply
side switch is needed as typical “off” leakage is a few microamperes with full primary voltage
supplied from the battery.
Features
•
Low voltage positive bias
supply
- 3.2 V to 4.2 V
•
Good linearity
•
High efficiency
-
37% @ 27 dBm
-
20% @ 16 dBm
•
Large dynamic range
•
10-pad package
-
4 x 4 x 1.15 mm
•
Power down control
•
InGaP
•
Supports low collector
voltage operation
•
Digital Enable
•
No V
REF
required
Figure 1. Functional Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200717B • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • June 10, 2008
Ordering Information
Model Number
SKY77170
Manufacturing Part Number
SKY77170
Product Revision
Package
MCM 4 x 4 x 1.15 mm
Operating Temperature
–30 °C to +85 °C
Revision History
Revision
A
B
Date
Mary 10, 2007
June 10, 2008
Initial Release
Add: GREEN tag (p1)
Description
Copyright © 2007, 2008, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services.
These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks
assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product
descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other
difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or
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Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of
products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for
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