SKY77767 Datasheet, PDF (1/2 Pages) Skyworks Solutions Inc. – Low voltage positive bias supply 3.0 V to 4.5 V

PRODUCT SUMMARY
SKY77767 SkyHi™ Power Amplifier Module for LTE – Band 7
(2500–2570 MHz)
Applications
• LTE
Features
• Low voltage positive bias
supply 3.0 V to 4.5 V
• Good linearity
• Large dynamic range
• Small, low profile package
- 3 mm x 3 mm x 0.9 mm
- 10-pad configuration
• Power down control
• InGaP
• Supports low collector
voltage operation
• Digital Enable
• No VREF required
• CMOS compatible control
signals
• Integrated Directional
Coupler
Description
The SKY77767 Power Amplifier Module (PAM) is a fully matched, 10-pad, surface mount (SMT)
module. This small and efficient module packs full 2500–2570 MHz bandwidth coverage into a single
compact package. Because of high efficiencies attained throughout the entire power range, the
SKY77767 delivers unsurpassed talk-time advantages. The SKY77767 meets the stringent spectral
linearity requirements of Long Term Evolution (LTE) data transmission with high power added
efficiency. An integrated directional coupler eliminates the need for any external coupler.
The Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all amplifier
active circuitry, including input and interstage matching circuits. The silicon CMOS support die,
providing precision biasing for the MMIC affords a true CMOS-compatible control interface. Output
match into a 50-ohm load, realized off-chip within the module package, optimizes efficiency and
power performance.
The SKY77767 is manufactured with Skyworks’ InGaP GaAs Heterojunction Bipolar Transistor (HBT)
process which provides for all positive voltage DC supply operation and maintains high efficiency and
good linearity. While primary bias to the SKY77767 can be supplied directly from any suitable battery
with an output of 3.2 V to 4.2 V, optimal performance is obtained with VCC2 sourced from a DC-DC
power supply adjusted within 0.5 V to 3.6 V based on target output power levels. Power down
executes by setting VENABLE to zero volts. No external supply side switch is needed as typical “off”
leakage is 1 µA with full primary voltage supplied from the battery.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202692A • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • February 26, 2013
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