sky77149 Skyworks Solutions, Inc., sky77149 Datasheet

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sky77149

Manufacturer Part Number
sky77149
Description
Sky77149 Pa Module For Cdma / Pcs 1850?1910 Mhz
Manufacturer
Skyworks Solutions, Inc.
Datasheet

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Skyworks
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DATA SHEET
SKY77149 PA Module for CDMA / PCS (1850–1910 MHz)
Applications
• Personal Communications
• Wireless Local Loop (WLL)
Features
• Low voltage positive bias
• Low VREF
• Low IREF
• Good linearity
• High efficiency
• Large dynamic range
• 8-pin package
• Power down control
• Dynamic bias control
• InGaP
• IS95/CDMA2000/EVDO
• Full U.S. PCS coverage
Services (PCS)
supply
- 3.2 V to 4.2 V
- 2.85 V, nominal
- less than 1 mA
- 3 x 3 x 1.2 mm
Skyworks offers lead
(Pb)-free "environmentally
friendly" packaging
that is RoHS compliant
(European Parliament
for the Restriction of
Hazardous Substances).
103062B • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • November 6, 2006
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
The SKY77149 System Smart™ Power Amplifier Module (PAM) is a fully matched 8-pin surface
mount module developed for Code Division Multiple Access (CDMA) / Personal Communications
Service (PCS) and Wireless Local Loop (WLL) applications. This small and efficient module packs full
1850–1910 MHz bandwidth coverage into a single compact package. The SKY77149 meets the
stringent spectral linearity requirements of Code Division Multiple Access (CDMA) PCS transmission,
with high power added efficiency for power output of up to 28 dBm. A low current pin (VCONT) is
provided to improve efficiency for the low RF power range of 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. The output match is realized off-chip within the module package to optimize
efficiency and power performance into a 50-ohm load. This device 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 SKY77149 is
supplied directly from a 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 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.
GND (7, 8)
VCONT (2)
RF_IN (3)
VCC2 (5)
VCC1 (4)
VREF (1)
Stage Bias
Match
Input
Driver
Figure 1. Functional Block Diagram
DA
Stage Bias
Inter-Stage
Power
Match
PA
MMIC
Output
MODULE
Match
(6) RF_OUT
103062_001
1

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sky77149 Summary of contents

Page 1

... GaAs Heterojunction Bipolar Transistor (HBT) process that provides for all positive voltage DC supply • Good linearity operation while maintaining high efficiency and good linearity. Primary bias to the SKY77149 is • High efficiency supplied directly from a three-cell Ni-Cd, a single-cell Li-Ion, or other suitable battery with an output • ...

Page 2

... DATA SHEET • SKY77149 Electrical Specifications The following tables list the electrical characteristics of the SKY77149 Power Amplifier. Table 1 lists the absolute maximum ratings, while Table 2 shows the recommended operating Parameter RF Input Power Supply Voltage Reference Voltage Control 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

... VSWR S All phases ≤ 28 dBm dBm OFF OFF = –30 °C, +25 °C, +85 °C; P CASE DATA SHEET • SKY77149 1 Condition Minimum Typical Maximum 19 22 < 2 CONT 0.5 0.7 37.0 40.0 40 450 0.5 100 2.0 – ...

Page 4

... DATA SHEET • SKY77149 Characterization Data The following graphs illustrate the characteristics of a typical SKY77149 power amplifier designed for operation in the cellular frequency band (824–849 MHz). This amplifier was selected by characterizing a group of devices and then selecting a part with average electrical performance for both nominal and the full range of recommended operating conditions, including worst case limits ...

Page 5

... P (dBm) OUT Figure 4. Power Added Efficiency vs. Output Power 1850 MHz @ +25 ˚C 1880 MHz @ +25 ˚C 1880 MHz @ +25 1910 MHz @ +25 ˚C 1910 MHz @ +25 DATA SHEET • SKY77149 = 2 2 1850 MHz @ +85 ˚C 1880 MHz @ +85 ˚C 1910 MHz @ +85 ˚ ...

Page 6

... DATA SHEET • SKY77149 1.25 V CONT Figure 5. Adjacent Channel Power Ratio 1 vs. Output Power 85 V CONT Figure 6. Adjacent Channel Power Ratio 2 vs. Output Power Legend 1850 MHz @ –30 ˚C 1880 MHz @ –30 ˚C 1910 MHz @ – ...

Page 7

... P (dBm) OUT Figure 8. Third Harmonic vs. Output Power 1850 MHz @ +25 ˚C 1880 MHz @ +25 ˚C 1880 MHz @ +25 1910 MHz @ +25 ˚C 1910 MHz @ +25 DATA SHEET • SKY77149 = 2 2 1850 MHz @ +85 ˚C 1880 MHz @ +85 ˚C 1910 MHz @ +85 ˚ ...

Page 8

... DATA SHEET • SKY77149 Evaluation Board Description The evaluation board is a platform for testing and interfacing design circuitry. To accommodate the interface testing of the SKY77149, the evaluation board schematic and diagrams are VREF 1000 pF VCONT 1000 pF RF_IN VCC1 A Place caps at closest proximity to PA module with the capacitor grounds directly connected to the PAM grounds. ...

Page 9

... PA MODULE FOR CDMA / PCS (1850–1910 MHz) Package Dimensions and Pin Descriptions The SKY77149 is a multi-layer laminate base, overmold encapsulated modular package designed for surface mount solder attachment to a printed circuit board. Figure 11 drawing of the pad layout for this package and METAL PAD EDGES 0 ...

Page 10

... METALLIZATION TOP VIEW All dimensions are in millimeters. Figure 12. Phone PCB Layout Footprint Diagram for mm, 8-Pin Package – SKY77149 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 10 November 6, 2006 • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • 103062B ...

Page 11

... The SKY77149 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 12

... DATA SHEET • SKY77149 To avoid ESD damage, both latent and visible very important that the product assembly and test areas follow the Class-1 ESD • Personnel Grounding - Wrist Straps - Conductive Smocks, Gloves and Finger Cots - Antistatic ID Badges • Protective Workstation ...

Page 13

... Ordering Information Manufacturing Part Model Number Number SKY77149 SKY77149 Revision History Revision Level A B References Application Note: PCB Design and SMT Assembly/Rework, Document Number 101752. Application Note: Tape and Reel Information – RF Modules, Document Number 101568 Standard SMT Reflow Profiles: JEDEC Standard J–STD–020 Copyright © ...

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