PRODUCT SUMMARY
SKY77621-51 Multimode Multiband Power Amplifier Module
Applications
•
Quad-band cellular handsets:
-
Class 4 GSM850/EGSM900
-
Class 1 DCS1800/PCS1900
-
Class E2 GSM850/EGSM900 /
DCS1800/PCS1900
-
Class 12 multi-slot EGPRS
•
Multiband 3G/LTE handsets
•
WCDMA Bands: I, II, III, IV, V, VIII, IX
•
TD-SCDMA Bands: 34, 39
•
LTE Bands:
1, 2, 3, 4, 5, 8, 9, 13, 17, 20, 12, 25, 26,
28
•
TDD-LTE Band 39, 44
Description
Skyworks SKY77621-51 is a hybrid multimode multiband (MMMB) Power Amplifier
Module (PAM) that supports 2.5G/3G/4G handsets, and operates efficiently in GSM,
EGPRS, EDGE, WCDMA, TD-SCDMA, and LTE modes. The module is fully programmable
through a Mobile Industry Processor Interface (MIPI).
The PAM consists of a GSM850/EGSM900 PA block, a DCS1800/PCS1900 PA block, a
WCDMA/LTE block for low and high bands, and a Multi-Function Control (MFC) block,
RF input/output ports internally matched to 50
Ω
to reduce the number of external
components. A CMOS integrated circuit, using standard MIPI control, provides the
internal MFC interface and operation. Extremely low leakage current maximizes
handset standby time.
The InGaP die and the silicon die and passive components are mounted on a multi-
layer laminate substrate. The assembly is encapsulated in a 5 x 7 x 0.9 mm, 42-pad
MCM, SMT package which allows for a highly manufacturable, low cost solution.
2.5G
The SKY77621-51 supports the GSM850, EGSM900, DCS1800, and PCS1900
bands as well as 2.5G Class12 Enhanced General Packet Radio Service (EGPRS) multi-
slot operation and EDGE linear modulation.
In GMSK mode, adjusting VRAMP controls power output. In EDGE mode, PIN controls
power output and VRAMP sets the bias.
3G
The SKY77621-51 supports WCDMA, High-Speed Downlink Packet Access
(HSDPA), High Speed Uplink Packet Access (HSUPA), High Speed Packet Access
(HSPA+), and TD-SCDMA modulations. Varying the input power level provides output
power control. VCC is adjusted using a DCDC converter or Envelope Tracking (ET)
modulator to maximize efficiency for each power level and modulation type.
4G
The SKY77621-51 supports 1.4, 3, 5, 10, 15, 20 MHz channel bandwidths. Similar
to 3G operation, output power is controlled by varying the input power and V
CC
is
adjusted using a DCDC converter or ET modulator to maximize efficiency for each
power level.
3G/4G Modulation scheme includes:
-
-
-
-
-
-
-
WCDMA Voice Release 99
HSDPA categories
HSUPA
HSPA+
TD-SCDMA
LTE 1.4, 3, 5, 10, 15, 20 MHz Channel BW
TDD-LTE
Features
•
Hybrid PA architecture
•
Two 2G/2.5G outputs
•
Eight 3G/4G outputs
•
Industry-leading PAE for 2G/3G/4G
•
Optimized for Envelope Tracking (ET)
application
•
Supports APT DCDC operation
•
Fully programmable Mobile Industry
Processor Interface (MIPI) control
•
MIPI programmable bias modes optimize
best efficiency/linearity trade-off for 3G
and 4G; minimizes DG09 for 3G.
•
Analog VRAMP for 2G/2.5G controls GMSK
power output and sets EDGE bias
•
Small, low profile package:
-
5 mm x 7 mm x 0.9 mm
-
42-pad configuration
Skyworks Solutions, Inc. • Phone [781] 376–3000 • Fax [781] 376–3100 • sales@skyworksinc.com • www.skyworksinc.com
203214A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 28, 2014
1
Ordering Information
Product Name
SKY77621-51 Multimode Multiband Power Amplifier Module
Order Number
SKY77621-51
Evaluation Board Part Number
EN40-D486-004
Copyright © 2014, Skyworks Solutions Inc. All Rights Reserved.
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Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the
information contained herein. Skyworks may change its documentation products services specifications or product descriptions at any time without notice. Skyworks makes no commitment to
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OUT
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