RF Amplifier

1.7GHz to 2.2GHz

F1421

Datasheet

© 2018 Integrated Device Technology, Inc.

1

Rev O May 11, 2018

Description

The F1421 is a high gain / high linearity RF amplifier used in high-

performance RF applications. The F1421 provides 20.3dB gain

with a +40dBm OIP3 and 5.5dB noise figure at 1.9GHz. This device

In typical base stations, RF amplifiers are used in the RX and TX

traffic paths to boost signal levels. The F1421 amplifier offers very

high reliability due to its construction using silicon die in a QFN

package.

Typical Applications

 Multi-mode, multi-carrier transmitters

 PCS1900 base stations

 DCS1800 base stations

 WiMAX and LTE base stations

 UMTS/WCDMA 3G base stations

 PHS/PAS base stations

 Public safety infrastructure

Features

 Broadband 1.7GHz to 2.2GHz

 20.3dB typical gain at 1.9GHz

 5.5dB noise figure at 1.9GHz

 +40dBm OIP3 at 1.9GHz

 +23dBm output P1dB at 1.9GHz

 Single 5V supply voltage

 -40°C to +105°C operating temperature

 50

Ω single-ended input / output impedances

 Standby mode for power savings

 4mm x 4mm, 24-pin QFN package

Block Diagram

Figure 1.

Block Diagram

Zero-Distortion

TM

RFIN

RFOUT

STBY