SKY77433 Datasheet, PDF (1/11 Pages) Skyworks Solutions Inc. – Front-End Module for WCDMA / HSDPA / HSUPA (Tx 1920-1980 MHz), (Rx 2110-2170 MHz)

PRELIMINARY DATA SHEET
SKY77433 Front-End Module for WCDMA / HSDPA / HSUPA
(Tx 1920-1980 MHz), (Rx 2110-2170 MHz)
Applications
• Digital cellular (WCMDA)
handsets
Features
• High Speed Downlink
Packet Access (HSDPA)
• High Speed Uplink Packet
Access (HSUPA)
• Low quiescent current
- 20 mA
• Low current consumption
- 500 mA
• Integrated Power Detector
• 16-pad package
• Small profile
- 4 mm x 7 mm x 1.05 mm
• Low voltage
- 3.1 V to 4.45 V
• Digital enable pad
• Highly integrated, user
friendly solution
• InGaP HBT
• Integrated interstage filter
and duplexer
• Supports low collector
voltage operation
• Requires few external
components
Description
The SKY77433 Front-End Module (FEM) is a fully matched, 16-pad 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 7 mm x 4 mm x 1.05 mm package.
The SKY77433 meets the stringent spectral requirements of HSDPA standards up to 25.2 dBm output
power. The FEM incorporates an InGaP HBT PA and contains circuitry to optimize power detector
performance. Different control pads 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 500 mA at maximum output power
(25.2 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 SKY77433 front-end module can save handset
designers significant board space and design-cycle time.
Figure 1. Functional Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
200595B • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • December 8, 2008
1