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Rev. A | Page 2 of 28

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Functional Block Diagram .............................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Absolute Maximum Ratings............................................................ 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Descriptions............................. 6

Typical Performance Characteristics ............................................. 8

RF Amp and Demodulator ......................................................... 8

Baseband Output Amplifiers .................................................... 11

RF Amp/Demod and Baseband Output Amplifiers .............. 12

Equivalent Circuits..................................................................... 14

Theory of Operation ...................................................................... 16

RF Variable Gain Amplifiers (VGA)........................................ 16

Mixers .......................................................................................... 16

Baseband Variable Gain Amplifiers ......................................... 16

Output Amplifiers ...................................................................... 16

LO and Phase Splitters............................................................... 16

Output Level Detector ............................................................... 17

Bias ............................................................................................... 17

Applications..................................................................................... 18

Basic Connections...................................................................... 18

RF Input and Matching ............................................................. 18

LO Drive Interface ..................................................................... 18

Operating the VGA.................................................................... 19

Mixer Output Level and Drive Capability .............................. 19

Operating the VGA in AGC Mode .......................................... 19

Changing the AGC Setpoint ..................................................... 20

Baseband Amplifiers.................................................................. 20

Driving Capacitive Loads.......................................................... 21

External Baseband Amplification ............................................ 21

Filter Design Considerations .................................................... 21

DC Offset Compensation.......................................................... 22

Evaluation Board ............................................................................ 23

Outline Dimensions ....................................................................... 26

Ordering Guide .......................................................................... 26

REVISION HISTORY

10/05—Rev. 0 to Rev. A

Updated Format..................................................................Universal

Changes to Figure 46...................................................................... 19

Changes to Figure 48 ..................................................................... 21

Changes to Figure 49 and Figure 50............................................. 22

Changes to Ordering Guide .......................................................... 27

10/01—Revision 0: Initial Version