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ADW71205WSTZ Datasheet(Arkusz danych) 2 Page - Analog Devices

Numer części ADW71205WSTZ
Szczegółowy opis  12-Bit RDC with Reference Oscillator
Pobierz  20 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
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AD2S1205
Rev. A | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Resolver Format Signals................................................................... 8
Theory of Operation ........................................................................ 9
Fault Detection Circuit ................................................................ 9
Monitor Signal .............................................................................. 9
Loss of Signal Detection .............................................................. 9
Signal Degradation Detection .................................................. 10
Loss of Position Tracking Detection ........................................ 10
Responding to a Fault Condition ............................................. 10
False Null Condition.................................................................. 10
On-Board Programmable Sinusoidal Oscillator.................... 11
Synthetic Reference Generation ............................................... 11
Charge-Pump Output................................................................ 11
Connecting the Converter ........................................................ 11
Clock Requirements................................................................... 12
Absolute Position and Velocity Output................................... 12
Parallel Interface......................................................................... 12
Serial Interface ............................................................................ 14
Incremental Encoder Outputs .................................................. 16
Supply Sequencing and Reset ................................................... 16
Circuit Dynamics ........................................................................... 17
Loop Response Model ............................................................... 17
Sources of Error.......................................................................... 18
Connecting to the DSP .............................................................. 19
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 20
Automotive Products ................................................................. 20
REVISION HISTORY
5/10—Rev. 0 to Rev. A
Changes to Features Section............................................................ 1
Changes to Input Bias Current Parameter and Input
Impedance Parameter ...................................................................... 3
Changes to Table 2............................................................................ 5
Changes to Loss of Signal Detection Section................................ 9
Changes to Connecting the Converter Section and Figure 5 ... 11
Change to t6 Max Value in Table 6 ............................................... 13
Changes to t9 and t10 Max Values Table 7 .................................... 15
Changes to Ordering Guide .......................................................... 20
Added Automotive Products Section .......................................... 20
1/07—Revision 0: Initial Version




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