WS1105

CDMA Cell 3x3 Power Amplifier Module

(824-849 MHz)

Data Sheet

Description

The WS1105 is a CDMA(Code Division Multiple Access)

power amplifier module designed for handsets operating

in the 824-849MHz bandwidth.

The WS1105 features CoolPAM circuit technology that

offers state-of-the-art reliability, temperature stability and

ruggedness.

Digital mode control of CoolPAM reduces current con-

sumption, which enables extended talk time of mobile

devices.

The WS1105 meets stringent CDMA linearity requirements

to and beyond 28dBm output power. The 3mmx3mm form

factor 8-pin surface mount package is self contained, incor-

porating 50ohm input and output matching networks.

Functional Block Diagram

Features

x Excellent Linearity

x Low quiescent current

x High Efficiency

– PAE at 28dBm: 41.2%

– PAE at 16dBm: 17.7%

x 8-pin surface mounting package

– 3mmx3mmx1.0mm

x Internal 50ohm matching networks for both RF input

and output

x RoHS Compliant

Applications

x Digital CDMA Cellular

x Wireless Local Loop

Output

Match

Input

Match

Inter

Stage

Match

DA

PA

Bias Circuit & Control Logic

RF Input

(2)

RF Output

(7)

Vcc1(1)

Vcc2(8)

Vref(4)

Vcont(3)

MODULE

MMIC