PRELIMINARY PRODUCT SUMMARY
SKY77413 Front-End Module for WCDMA (824-849 MHz)
Applications
•
Digital cellular (WCMDA)
handsets
Description
The SKY77413 Front-End Module (FEM) is a fully matched, 22-pin surface mount module developed
for WCDMA applications. Small and efficient, this WCDMA FEM integrates the interstage filter, the
input matching, the power amplifier, the output matching, the power detection, and the duplexer into
a single 5 mm x 8 mm x 1.5 mm package.
The SKY77413 meets the stringent spectral requirements of HSDPA (High Speed Downlink Packet
Access) up to 23.9 dBm output power. The FEM incorporates an InGaP HBT PA and contains circuitry
to optimize power detector performance. Different control pins are available to enhance the
performance of the FEM at different power levels.
Integration of the RF front-end greatly simplifies the design of the handset radio as all critical
matching between the interstage filter, PA, power detection, and duplexer is optimized within the
module. By optimizing the efficiency of the InGaP HBT PA MMIC and reducing the RF loss between the
integrated components, this FEM achieves current as low as 450 mA at maximum output power
(24.8 dBm) that significantly improves the talk time of the WCDMA handset. This small package uses
Skyworks’ low cost, multi-laminate substrate technology and is approximately half the size of
individually-packaged component solutions. The SKY77413 front-end module can save handset
designers significant board space and design-cycle time.
Features
•
HSDPA (High Speed
Downlink Packet Access)
•
Low quiescent current
-
20 mA
•
Low current consumption
-
450 mA
•
Integrated Power Detector
•
22-pin package
•
Small profile
-
5 mm x 8 mm x 1.5 mm
•
Low voltage
-
3.2 V to 4.2 V
•
Digital enable pin
•
Highly integrated, user
friendly solution
•
InGaP HBT
•
Integrated interstage filter
and duplexer
•
Requires few external
components
RX (14)
VCC2 (16)
VCC1 (17)
TX_IN (20)
VCCB (18)
Input
Match
DA
Inter
Stage
Match
PA
Output
Match
(10) ANT
Skyworks offers lead
(Pb)-free "environmentally
friendly" packaging
that is RoHS compliant
(European Parliament
for the Restriction of
Hazardous Substances).
VCONT (22)
VMOD (4)
VEN (2)
VREF (3)
VDET (5)
GND
1, 6, 7, 8, 9
11, 12, 13
15, 19, 21
DETECTOR and BIAS CONTROL
200415_001
Figure 1. Functional Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200415P2 • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • August 21, 2006
© 2005–2006, Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products. These materials are provided by Skyworks as a service to its customers and may be
used for informational purposes only. Skyworks assumes no responsibility for errors or omissions in these materials. Skyworks may make changes to its products, specifications and product
descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties
arising from future changes to its products and product descriptions.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as may be provided in Skyworks' Terms and Conditions of Sale for
such products, Skyworks assumes no liability whatsoever.
THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, RELATING TO SALE AND/OR USE OF SKYWORKS™ PRODUCTS INCLUDING
WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL
PROPERTY RIGHT. SKYWORKS FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE
MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS
THAT MAY RESULT FROM THE USE OF THESE MATERIALS.
Skyworks™ products are not intended for use in medical, lifesaving or life-sustaining applications. Skyworks' customers using or selling Skyworks™ products for use in such applications do so at
their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale.
The following are trademarks of Skyworks Solutions, Inc.: Skyworks™, the Skyworks symbol, and "Breakthrough Simplicity"™. Product names or services listed in this publication are for
identification purposes only, and may be trademarks of third parties. Third-party brands and names are the property of their respective owners.
Additional information, posted at www.skyworksinc.com, is incorporated by reference.
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