SKY77822-21 Datasheet, PDF (1/2 Pages) Skyworks Solutions Inc. – Power Amplifier Module for FDD LTE Bands 7 and 30

PRODUCT SUMMARY
SKY77822-21 Power Amplifier Module for FDD LTE
Bands 7 and 30, TDD LTE Bands 38/41 and 40, and
AXGP Band
Applications
• Long-Term Evolution (LTE)
• Evolved Universal Terrestrial
Radio Access Networks
(EUTRAN)
• Handsets and Data Cards
Features
• Optimized for Average Power
Tracking (APT)
• High efficiency Broadband
2.3 GHz to 2.69 GHz
• MIPI^® RFFE interface
• Integrated output switch
including TDD Tx/Rx function for
single SAW architecture
• RF I/O internally matched to 50
ohms
• Small, low profile package
- 4.0 x 3.65 x 0.8 mm Max.
- 28-pad configuration
Description
The SKY77822-21 Power Amplifier Module (PAM) is a fully matched, 28-pad surface mount
(SMT) module developed for LTE applications. The module includes broadband coverage of FDD
LTE Bands 7 and 30, TDD LTE Bands 38/40, and Band 41 in a compact 4.0 x 3.65 mm package.
Attaining high efficiencies throughout the entire power range while meeting the stringent LTE
linearity requirements, the SKY77822-21 delivers unsurpassed savings in current consumption
for data-intensive applications.
The Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all
amplifier active circuitry, including input, interstage, and output matching circuits. Output match
into a 50-ohm load is realized off-chip within the module package to optimize efficiency and
power performance. Silicon-on-insulator (SOI) switch follows the wideband power amplifier to
direct the RF output signal to the appropriate TDD or FDD filters as desired for the application.
Additional throws in the SOI switch allow the reuse of TDD filters in Rx mode by providing paths
to either the HB2 Rx port (HBRX1) or a shared HB1/HB2 Rx port (HBRX2). Bias for the PA MMIC
and switch is generated on a CMOS IC controlled through a MIPI RFFE interface.
The SKY77822-21 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. Optimal performance is obtained with VCC1 and VCC2 sourced from
a DC-DC power supply based on target output power. No external supply side switch is required
as typical "off" leakage is a few microamperes.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
203473A • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • February 23, 2015
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