SKY77171 Skyworks Solutions, SKY77171 Datasheet

no-image

SKY77171

Manufacturer Part Number
SKY77171
Description
Power Amplifier Module
Manufacturer
Skyworks Solutions
Datasheet
www.DataSheet4U.com
PRELIMINARY DATA SHEET
SKY77171 AutoSmart™ Power Amplifier Module for WCDMA
(1920-1980 MHz)
Applications
• WCDMA handsets
Features
• Low voltage positive bias
• Low V
• Low IREF
• Supports low collector
• Good linearity
• High efficiency
• Large dynamic range
• 10-pad package
• Power down control
• InGaP
supply
- 3.2 V to 4.2 V
- 2.85 V, nominal
- Less than 1 mA
voltage operation
- 4 x 4 x 1.15 mm
REF
Skyworks offers lead
(Pb)-free "environmentally
friendly" packaging
that is RoHS compliant
(European Parliament
for the Restriction of
Hazardous Substances).
200014P2 • Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice. • October 14, 2005
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
Description
The SKY77171 AutoSmart™ 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
SKY77171 meets the stringent spectral linearity requirements of WCDMA transmission with high
power added efficiency for power output of up to 28 dBm.
AutoSmart
dynamic operating range to minimize battery current consumption and ensure sufficient linear
performance to meet WCDMA system requirements. The result is a significant savings in average
battery current without the complications of a system-supplied mode function signal or analog bias
control. AutoSmart™ response time is more than adequate for RF access probe and discontinuous
transmission operation.
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 SKY77171 AutoSmart™ 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 SKY77171 is supplied directly from a three-cell
nickel cadmium, a single-cell lithium 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 pin 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.
RF_IN (2)
VCC (10)
(3,6,7,9)
VREF (5)
VCC (1)
GND
TM
power amplifier technology internally adjusts the RF transistor bias level throughout the
Stage Bias
Match
Driver
Input
Control Circuit
Figure 1. Functional Block Diagram
Feedback
DA
Inter-Stage
Stage Bias
Match
Power
PA
MODULE
Output
Match
(8) RF_OUT
200014_001
1

Related parts for SKY77171

SKY77171 Summary of contents

Page 1

... The SKY77171 AutoSmart™ 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 SKY77171 is supplied directly from a three-cell nickel cadmium, a single-cell lithium 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 pin to zero volts. No external supply side switch is needed as typical “ ...

Page 2

... SKY77171 • PRELIMINARY DATA SHEET www.DataSheet4U.com Electrical Target Specifications The following tables list the electrical characteristics of the SKY77171 Power Amplifier. Table 1 ratings, while Table 2 shows the recommended operating Parameter RF Input Power Supply Voltage Reference Voltage (2) Case Temperature (1) No damage assuming only one parameter is set at limit at a time with all other parameters set at nominal value. ...

Page 3

... Second Third RxBN VSWR 5:1 VSWR S All phases +2.85 V, Temp = +25 °C, Freq. = 1950 MHz. REF SKY77171 • PRELIMINARY DATA SHEET (1) Condition Minimum Typical = 0 dBm — dBm — dBm — dBm — 0 dBm — 41 dBm — ...

Page 4

... SKY77171 • PRELIMINARY DATA SHEET www.DataSheet4U.com Evaluation Board Description The evaluation board is a platform for testing and interfacing design circuitry. To accommodate the interface testing of the SKY77171, the evaluation board schematic and diagram are VCC1 A C7 330pF RFIN VREF C9 1000 pF Place caps at closest proximity to PA module with the capacitor grounds directly connected to the PAM grounds. ...

Page 5

... PA MODULE FOR WCDMA (1920-1980 MHZ) www.DataSheet4U.com Package Dimensions and Pad Descriptions The SKY77171 is a multi-layer laminate base, overmold encapsulated modular package designed for surface mount solder attachment to a printed circuit board. drawing of the pad layout for this package. 2X 0.575 0.1 METAL PAD EDGES ...

Page 6

... METALLIZATION TOP VIEW All dimensions are in millimeters. Figure 5. Phone PCB Layout for mm, 10-Pad Package – SKY77171 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 6 October 14, 2005 • Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice. • 200014P2 ...

Page 7

... The SKY77171 is capable of withstanding an MSL3/250 °C solder reflow. Care must be taken when attaching this product, whether it is done manually production solder reflow environment. If the part is attached in a reflow oven, the temperature ramp rate should not exceed 3 ° ...

Page 8

... SKY77171 • PRELIMINARY DATA SHEET www.DataSheet4U.com Table 5. Precautions for Handling GaAs IC-based Products to Avoid Induced Damage Personnel Grounding Facility Protective Packaging & Transportation Protective Workstation Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 8 October 14, 2005 • Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice. • 200014P2 ...

Page 9

... The following are trademarks of Skyworks Solutions, Inc.: Skyworks™, the Skyworks symbol, and “Breakthrough Simplicity”™. Product names or services listed in this publication are for identification purposes only, and may be trademarks of third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at www.skyworksinc.com, is incorporated by reference. Product Revision SKY77171 Date January 6, 2005 Preliminary Information July 20, 2005 Revise: change digital bias control to AutoSmart™ ...

Related keywords