IC-TW8_16 Datasheet, PDF (32/67 Pages) IC-Haus GmbH – 16-BIT SIN/COS INTERPOLATOR

iC-TW8 16-BIT SIN/COS INTERPOLATOR
Serial Configuration Mode
Table of Contents
Aug 16, 2016 Page SC1/36
About This Document ........................................... 2  
Documentation Conventions................................. 2  
Functional Overview ............................................. 3  
Functional Block Diagram .................................... 4  
Clock Generator .................................................. 4  
Power-On Reset .................................................. 4  
Serial Ports .......................................................... 4  
EEPROM Interface ............................................. 4  
Internal Memory.................................................. 4  
AB Signal Path .................................................... 5  
Analog Gain .................................................... 5  
Analog Offset Correction................................ 5  
Analog-to-Digital Converters (ADCs)............ 5  
Digital Offset Correction ................................ 5  
Digital Gain Match Correction ....................... 5  
Digital Phase Correction ................................. 6  
Angle Calculation (Arctan)............................. 6  
Sensor Distortion LUT.................................... 6  
Filter................................................................ 6  
Digital Hysteresis............................................ 8  
Interpolation Factor......................................... 8  
Output Generator ............................................ 8  
Z Signal Path ....................................................... 8  
Auto Calibration and Auto Adaption .................. 8  
Auto Store ........................................................... 9  
Fault Handling..................................................... 9  
ADC and Adaption Quality Monitors ................. 9  
Electrical Connections......................................... 10  
Providing a Clock.............................................. 11  
Connecting the EEPROM ................................. 12  
Connecting the Incremental Sensor .................. 12  
Connecting an Index Sensor (If Used) .............. 13  
Connecting the ABZ Outputs............................ 14  
Connecting the Serial Ports ...............................14  
Power-on-Reset .................................................14  
Startup ..................................................................15  
Serial Configuration Overview ...........................15  
Rotary Encoder Design Tool...............................16  
General Configuration .......................................16  
AB Configuration ..............................................18  
Filter Configuration ...........................................19  
Z Configuration .................................................21  
Auto Adaption Configuration............................21  
FAULT Pin Configuration.................................22  
ADC Quality Monitor........................................23  
Adaption Quality Monitor .................................24  
STATUS Pin Configuration ..............................24  
LUT Configuration ............................................24  
CFG Block.........................................................24  
GUI Hex ............................................................24  
Auto Calibration ..................................................25  
Auto Calibration Using the GUI........................25  
Calibrating the Z Signal Path .............................26  
No Index Sensor ................................................26  
Digital Output Index Sensor ..............................27  
Analog Output Index Sensor .............................28  
Using Serial-Only Output Mode.........................30  
Using PWM Output Mode ..................................31  
Using the Post-AB Divider ..................................32  
Tuning the Internal Oscillator ............................33  
Using the LUT ......................................................34  
Revision History ...................................................36  
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