Datasheet > CX77144

CX77144

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
思佳讯 - SKYWORKS		放大器功率放大器
页数	文件大小	规格书
12页	734K
描述
Power Amplifier Module for CDMA (887-925 MHz)

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DATA SHEET

CX77144: Power Amplifier Module for CDMA (887–925 MHz)

Applications

Description

The CX77144 Power Amplifier Module (PAM) is a fully matched, 10-pin surface mount module

developed for cellular handset applications utilizing Code Division Multiple Access (CDMA) and

Wireless Local Loop (WLL). This small and efficient power amplifier module packs a full 887–925 MHz

bandwidth coverage into a single compact package. The device meets the stringent IS95

requirements up 27.5 dBm output power and up to 27 dBm for CDMA2000. A low current digital pin

(VCONT) provides improved efficiency for the low RF power range of operation.

• CDMA for Japan

• Wireless Local Loop (WLL)

Features

• Low voltage positive bias

supply

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. The output match is realized off-chip and within the module package to optimize

efficiency and power performance into a 50 Ω load. This device is manufactured with Skyworks’ GaAs

Heterojunction Bipolar Transistor (HBT) process that provides for all positive voltage DC supply

operation while maintaining high efficiency and good linearity. Primary bias to the CX77144 is

supplied directly from a three-cell Ni-Cd, a single-cell Li-Ion, or other suitable battery with an output

in the range of 3.2 to 4.2 volts. Power down is accomplished by setting the voltage on the low current

reference pin 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.

- 3.2 V to 4.2 V

• Low V^REF

- 2.85 V, nominal

• Good linearity

• High efficiency

• Large dynamic range

• 10-pin package

- 4 mm x 4 mm x 1.5 mm

• Power down control

• Low power–state control

• InGaP

• CDMA2000 / IS95

Figure 1. Functional Block Diagram

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

102047A • Skyworks Proprietary Information. • Products and product information are subject to change without notice. • June 9, 2004

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