ADRF6518

Data Sheet

Rev. A | Page 2 of 39

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Diagrams.......................................................................... 5

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

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

Filter Mode.................................................................................... 8

Bypass Mode ............................................................................... 16

Mixed Power and Filter Modes................................................. 18

Characterization ............................................................................. 19

Noise Figure Calculation........................................................... 19

Register Map and Codes................................................................ 20

Theory of Operation ...................................................................... 21

Input VGAs ................................................................................. 21

Peak Detector.............................................................................. 22

Programmable Filters................................................................. 22

Variable Gain Amplifiers (VGAs) ............................................ 23

Output Buffers/ADC Drivers ................................................... 23

DC Offset Compensation Loop................................................ 23

Programming the ADRF6518................................................... 23

Noise Characteristics ................................................................. 24

Distortion Characteristics ......................................................... 24

Maximizing the Dynamic Range.............................................. 25

Key Parameters for Quadrature-Based Receivers.................. 25

Applications Information .............................................................. 26

Basic Connections...................................................................... 26

Supply Decoupling ..................................................................... 26

Input Signal Path ........................................................................ 26

Output Signal Path..................................................................... 26

DC Offset Compensation Loop Enabled ................................ 26

Common-Mode Bypassing ....................................................... 27

Serial Port Connections............................................................. 27

Enable/Disable Function........................................................... 27

Gain Pin Decoupling ................................................................. 27

Peak Detector Connections ...................................................... 27

Error Vector Magnitude (EVM) Performance........................... 27

EVM Test Setup .......................................................................... 27

EVM Measurement.................................................................... 27

EVM System Measurement....................................................... 29

Effect of Filter BW on EVM...................................................... 31

Pull-Down Resistors for Disable Function ............................. 31

Instability at High Gain in Filter Bypass Mode...................... 31

Instability at Low Filter Corners and Low Power Mode....... 32

Peak Detector Bandwidth And Slew Rate............................... 32

Linear Operation of the ADRF6518 ........................................ 32

Evaluation Board ............................................................................ 33

Evaluation Board Control Software......................................... 33

Schematics and Artwork ........................................................... 34

Outline Dimensions....................................................................... 39

Ordering Guide .......................................................................... 39

REVISION HISTORY

12/2017—Rev. 0 to Rev. A

Changed 1100 MHz to 1.1 GHz .................................. Throughout

Change to Product Title................................................................... 1

Changes to Figure 1.......................................................................... 1

Changes to Table 1............................................................................ 3

Changes to Figure 3.......................................................................... 5

Changes to Figure 12........................................................................ 9

Changes to Figure 20...................................................................... 10

Reorganized Typical Performance Characteristics Section;

Renumbered Sequentially.............................................................. 10

Changes to Figure 49 Caption, Figure 51 Caption, and Figure 52

Caption............................................................................................. 15

Changes to Figure 56...................................................................... 16

Changes to Figure 69 and Figure 69 Caption ............................. 22

Changes to Figure 72...................................................................... 26

Changes to Figure 73 and Figure 74 ............................................ 28

Added Figure 86 and Figure 87; Renumbered Sequentially.......... 32

Added Instability at Low Filter Corners and Low Power Mode

Section, and Peak Detector Bandwidth and Slew Rate Section...... 32

Changes to Figure 88 ....................................................................... 32

Changes to Figure 89...................................................................... 33

6/2013—Revision 0: Initial Version