© Freescale Semiconductor, Inc., 2005–2009. All rights reserved.

Freescale Semiconductor

Data Sheet: Technical Data

This document contains information on a new product. Specifications and information herein are subject to change without notice.

Document Number: MC13821

Rev. 1.5, 09/2009

MC13821

Package Information

Plastic Package

Case 1345

(QFN–12)

Ordering Information

Device

Device Marking or

Operating

Temperature Range

Package

MC13821

821

QFN-12

1

Introduction

The MC13821 is a high gain LNA with extremely low

noise figure, designed for cellular, GPS and ISM band

applications. An integrated bypass switch is included to

preserve input intercept performance. The input and

output match are external to allow maximum design

flexibility. The MC13821 is fabricated using Freescale's

advanced RF BiCMOS process using the SiGe:C option

and is packaged in the QFN-12 leadless package.

1.1

Features

•

RF Input Frequency: 1000 MHz to 2.4 GHz

•

Gain: 16.4 dB (typ) at 1960 MHz and 15.7 dB

(typ) at 2140 MHz

•

Output 3rd Order Intercept Point (OIP3): 17.4

dBm (typ) at 1960 MHz and 19.7 dBm (typ) at

2140 MHz

•

Noise Figure (NF): 1.25 dB (typ) at 1960 MHz

and 1.3 dB (typ) at 2140 MHz

•

1dB Compression Point (P1dB): -6 dBm (typ) at

1960 MHz and -5 dBm (typ) at 2140 MHz

MC13821

Low Noise Amplifier with Bypass

Switch

Contents:

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 Electrical Specifications . . . . . . . . . . . . . . . . 3

3 Application Information . . . . . . . . . . . . . . . . 10

4 Printed Circuit Board . . . . . . . . . . . . . . . . . . 28

5 Scattering Parameters . . . . . . . . . . . . . . . . . 32

6 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7 Reference Documentation . . . . . . . . . . . . . . 42

8 Revision History . . . . . . . . . . . . . . . . . . . . . . 42