700 MHz to 1000 MHz,

1 W RF Driver Amplifier

ADL5605

Rev. 0

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FEATURES

Operation from 700 MHz to 1000 MHz

Gain of 23 dB at 943 MHz

OIP3 of 44.2 dBm at 943 MHz

P1dB of 30.9 dBm at 943 MHz

Noise figure of 4.8 dB at 943 MHz

Power supply: 5 V

Power supply current: 307 mA typical

Internal active biasing

Fast power-up/power-down function

Compact 4 mm × 4 mm, 16-lead LFCSP

ESD rating of ±1 kV (Class 1C)

Pin-compatible with the ADL5606 (1800 MHz to 2700 MHz)

APPLICATIONS

Wireless infrastructure

Automated test equipment

ISM/AMR applications

GENERAL DESCRIPTION

The ADL5605 is a broadband, two-stage, 1 W RF driver

amplifier that operates over a frequency range of 700 MHz

to 1000 MHz.

The ADL5605 operates on a 5 V supply voltage and a supply

current of 307 mA. The driver also incorporates a fast power-

up/power-down function for TDD applications, applications

that require a power saving mode, and applications that

intermittently transmit data.

The ADL5605 is fabricated on a GaAs HBT process and is

packaged in a compact 4 mm × 4 mm, 16-lead LFCSP that

uses an exposed paddle for excellent thermal impedance. The

ADL5605 operates from −40°C to +85°C. A fully populated

evaluation board tuned to 943 MHz is also available.

FUNCTIONAL BLOCK DIAGRAM

11 RFOUT

12 RFOUT

10 RFOUT

9RFOUT

1

RFIN

2

DISABLE

3

VCC

4

VBIAS

ADL5605

VBIAS

PWDN

Figure 1.

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

0

2

4

6

8

1012

141618

20

22

946MHz

Figure 2. ACPR vs. Output Power, 3GPP, TM1-64, at 946 MHz