SKY77197 Datasheet, PDF (1/2 Pages) Skyworks Solutions Inc. – Dual-Band PA Module for WCDMA / HSDPA Band I (1920 - 1980 MHz) and Band V (824 - 849 MHz)

PRODUCT SUMMARY
SKY77197 Dual-Band PA Module for WCDMA / HSDPA
Band I (1920–1980 MHz) and Band V (824–849 MHz)
APPLICATIONS
• WCDMA handsets
• HSDPA
Features
• Low voltage positive bias
supply: 3.2 V to 4.2 V
• Good linearity
• High efficiency
- 40% @ 28.25 dBm
• Large dynamic range
• 14-pad package
- 5 mm x 4 mm x 0.85 mm
• Power down control
• InGaP
• Supports low collector
voltage operation
• Digital Enable
• No VREF required
• CMOS compatible control
signals
• Integrated Directional
Coupler
The SKY77197 Power Amplifier Module (PAM) is a fully matched, 14-pad, surface mount module
developed for Wideband Code Division Multiple Access (WCDMA) applications. This small and efficient
module packs full WCDMA Band I and Band V coverage into a single compact package. The
SKY77197 meets the stringent spectral linearity requirements of WCDMA transmission, with high
power added efficiency for power output to 28.25 dBm (Band I and Band V). The SKY77197 meets the
stringent spectral linearity requirements of High Speed Downlink Packet Access (HSDPA) data
transmission with high power added efficiency. 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 SKY77197 PAM is manufactured with Skyworks’ InGaP GaAs Heterojunction Bipolar Transistor
(HBT) BiFET process that provides for all positive voltage DC supply operation while maintaining high
efficiency and good linearity. No VREF voltage is required. Power down is accomplished by setting the
voltage on VENABLE 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.
Figure 1. Functional Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
201065A • Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice. • April 20, 2009
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