1700 MHz to 2400 MHz GaAs

Matched RF PA Predriver

ADL5323

Rev. 0

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FEATURES

Internally matched to 50 Ω input and output

Internally biased

Operating frequency: 1700 MHz to 2400 MHz

Gain: 20 dB

OIP3: 43 dBm

P1 dB: 28 dBm

Noise figure: 5 dB

3 mm × 3 mm LFCSP

Power supply: 5 V

APPLICATIONS

CDMA2000, WCDMA, and GSM base station transceivers and

high power amplifiers

FUNCTIONAL BLOCK DIAGRAM

VCC 5

2 VCC

1 VCC

ADL5323

RFIN 8

3 GND

4 RFOUT

GND 6

GND 7

BIAS CONTROL

OUTPUT

MATCH

Figure 1.

GENERAL DESCRIPTION

The ADL5323 is a high linearity GaAs driver amplifier that is

internally matched to 50 Ω for operation in the 1700 MHz to

2400 MHz frequency range. The amplifier, which has a gain of

20 dB, has been specially designed for use in the output stage of

a cellular base station radio or as an input preamplifier in a

multicarrier base station power amplifier. Matching and biasing

are all on-chip. The ADL5323 is available in a Pb-free, 3 mm ×

3 mm, 8-lead LFCSP with an operating temperature of

−40°C to +85°C.

–15

–115

CENTER 2.14GHz

SPAN 14.6848MHz

1.46848MHz/

–50

–60

–70

–80

–90

–100

–30

–40

–20

–110

RBW = 30kHz

VBW = 300kHz

SWT = 2s

RF ATT = 10dB

CH PWR = 0dBm

ACP UP = –74.2dBc

ACP LOW = –73.9dBc

Figure 2. Single-Carrier WCDMA Spectral Plot @ 2140 MHz

(No Noise Floor Correction, Test Model 1-64)