Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201434B • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • December 2, 2010

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PRODUCT SUMMARY

SKY77732 Power Amplifier Module for CDMA PCS

(1850 MHz–1910 MHz)

Applications

• CDMA handsets

Features

• Low voltage positive bias

supply 3.2 V to 4.2 V

• Good linearity

• High efficiency

- 40% @ 28 dBm

• 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

• CMOS compatible control

signals

• Integrated Directional

Coupler

Description

The SKY77732 Power Amplifier Module (PAM) is a fully matched 10-pad surface mount module

developed for Code Division Multiple Access (CDMA) applications. This small and efficient module

packs full coverage of bandwidth for 1850–1910 MHz into a single compact package. Because of

high efficiencies attained throughout the entire power range, the SKY77732 delivers unsurpassed

talk-time advantages. A directional coupler is integrated into the module thus eliminating the need for

any external coupler.

The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all active

circuitry in the module. The MMIC contains on-board bias circuitry, as well as input and interstage

matching circuits. Output match into a 50-ohm load is realized off-chip within the module package to

optimize efficiency and power performance.

The SKY77732 PAM is manufactured with Skyworks’ InGaP GaAs Heterojunction Bipolar Transistor

(HBT) BiFET process that provides for all positive voltage DC supply operation while maintaining high

efficiency and good linearity. Primary bias to the SKY77732 is supplied directly from any suitable

battery with an output in the 3.2 to 4.2 volt range. No VREF voltage is required. Power down is

accomplished by setting the voltage on VENABLE to zero volts. No external supply side switch is

needed as typical “off” leakage is a few microamperes with full primary voltage supplied from the

battery.

Figure 1 is a functional block diagram of the SKY77732. Figure 2 shows the pad layout and pad

names. Figure 3 is a mechanical diagram of the SKY77732 package dimensions.

Figure 1. SKY77732 Functional Block Diagram