SKY77752 Datasheet, PDF (1/2 Pages) Skyworks Solutions Inc. – Dual-Band Power Amplifier Module

PRODUCT SUMMARY
SKY77752 SkyHi™ Dual-Band Power Amplifier Module for
CDMA2000 / WCDMA / HSDPA / HSUPA
Band II (1850–1910 MHz) Band V (824–849 MHz), LTE
APPLICATIONS
• WCDMA handsets
• HSDPA
• HSUPA
• CDMA2000
• EVDO
• LTE
Features
• Low voltage positive bias
supply: 3.2 V to 4.2 V
• Good linearity
• High efficiency
- Band II
47% at 28.3 dBm
- Band V
47% at 28.5 dBm
• Large dynamic range
• Small, low profile package
- 3 mm x 4 mm x 0.9 mm
- 16-pad configuration
• Power down control
• InGaP
• Supports low collector
voltage operation
• Digital Enable
• No VREF required
• CMOS compatible control
signals
• Integrated Directional
Coupler
The SKY77752 SkyHi™ Power Amplifier Module (PAM) is a fully matched, 16-pad, surface mount
module developed for Code Division Multiple Access (CDMA) and Wideband Code Division Multiple
Access (WCDMA) applications. This small and efficient module packs full WCDMA Band II and Band V
coverage into a single compact package. The SKY77752 meets the stringent spectral linearity
requirements of WCDMA transmission, with high power added efficiency for power output to 28.8
dBm (Band II) and 28.2 dBm (Band V). The SKY77752 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 SKY77752 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 VEN_HB and VEN_LB 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. SKY77752 Functional Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
201823B • Skyworks Proprietary information. • Products and product information are subject to change without notice. • August 15, 2013
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