Datasheet > SKY77148-15

SKY77148-15

更新时间： 2022-11-25 14:07:40

品牌	Logo	应用领域
思佳讯 - SKYWORKS		/
页数	文件大小	规格书
2页	532K
描述
PA Module for CDMA2000 (450-460 MHz)

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PRODUCT SUMMARY

SKY77148: PA Module for CDMA2000 (450–460 MHz)

The SKY77148 Power Amplifier Module (PAM) is a fully matched 7-pin surface mount

module developed for Code Division Multiple Access (CDMA2000) handset and Wireless

Local Loop applications. This small and efficient power amplifier packs full coverage of the

450–460 MHz bandwidth into a single compact package. The device meets the stringent

CDMA2000 linearity requirements to and exceeding 29 dBm output power. A low current pin

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

APPLICATIONS

• Digital cellular (CDMA2000)

• Wireless Local Loop (WLL)

FEATURES

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

all active circuitry within the module, which includes on-board bias circuitry as well as input

and interstage matching circuits. Output match into a 50 Ω load is realized off-chip within

the module package to optimize efficiency and power performance. 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 SKY77148 is supplied directly from a three-cell nickel

cadmium, a single-cell lithium ion, or other suitable battery with a rated output in the 3.2 to

4.2 volt range. Setting the voltage on the low current reference pin to zero volts

accomplishes power down. No external supply side switch is needed as typical “off”

leakage is a few microamperes with full primary voltage from the battery.

• Low voltage positive bias supply

(3.2 V to 4.2 V)

• Good linearity

• High efficiency across wide

dynamic range

• Dual-mode operation

• 7-pin package

6 mm x 6 mm x 1.5 mm

• Power down control

• Low power state control

• CDMA2000

VREF

(3)

VCC1

(1)

VCONT

(4)

VCC2

(5)

Driver

Power

Stage Bias

Inter

Stage

Match

Output

Match

Input

Match

RF IN (2)

(6) RF OUT

MMIC

MODULE

(7)

GND

(7)

GND

103031_001

Figure 1. Functional Block Diagram

Skyworks Solutions, Inc., Proprietary

103031P3

[781] 376-7000 • FAX [781] 376-3100 • SALES@SKYWORKSINC.COM • WWW.SKYWORKSINC.COM

MAY 29, 2003

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