ADRF6806-EVALZ datasheet(2/36 Pages) AD

Il numero della parte	ADRF6806-EVALZ

Spiegazioni elettronici	50 MHz to 525 MHz Quadrature Demodulator with Fractional-N PLL and VCO

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ADRF6806

Data Sheet

Rev. B | Page 2 of 36

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Characteristics ................................................................ 5

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

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

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

Typical Performance Characteristics ............................................. 9

Synthesizer/PLL .......................................................................... 12

Complementary Cumulative Distribution Functions (CCDF)

....................................................................................................... 13

Circuit Description......................................................................... 14

LO Quadrature Drive................................................................. 14

V-to-I Converter......................................................................... 14

Mixers .......................................................................................... 14

Emitter Follower Buffers ........................................................... 14

Bias Circuitry .............................................................................. 14

Register Structure....................................................................... 14

LO Divider Programming......................................................... 21

Programming Example.............................................................. 21

Applications Information .............................................................. 22

Basic Connections...................................................................... 22

Supply Connections ................................................................... 22

Synthesizer Connections ........................................................... 22

I/Q Output Connections ........................................................... 23

RF Input Connections ............................................................... 23

Charge Pump/VTUNE Connections ...................................... 23

LO Select Interface ..................................................................... 23

External LO Interface ................................................................ 23

Setting the Frequency of the PLL ............................................. 23

Register Programming............................................................... 23

EVM Measurements .................................................................. 24

Evaluation Board Layout and Thermal Grounding................... 25

ADRF6806 Software .................................................................. 30

Characterization Setups................................................................. 32

Outline Dimensions ....................................................................... 36

Ordering Guide .......................................................................... 36

REVISION HISTORY

3/12—Rev. A to Rev. B

Changes to Phase Noise—Using 67 kHz Loop Filter Parameter,

Table 1; Added Phase Noise—Using 2.5 kHz Loop Filter

Parameter, Table 1; Added PLL Figure of Merit (FOM)

Parameter, Table 1 ........................................................................ 4

Changes to Figure 21 and Figure 24 to Figure 26....................... 12

Changes to Figure 34...................................................................... 16

Changes to Figure 37...................................................................... 18

Changes to Figure 38...................................................................... 19

Changes to Figure 39...................................................................... 20

Changes to EVM Measurements Section and Figure 42,

Deleted Figure 43; Renumbered Sequentially ........................ 24

Changes to Figure 43...................................................................... 25

Added Figure 44.............................................................................. 26

Changes to Figure 46 and Figure 47............................................. 27

Changes to Table 7.......................................................................... 29

Changes to Figure 48...................................................................... 30

Changes to Figure 49...................................................................... 31

6/11—Rev. Sp0 to Rev. A

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