IC-MQF Datasheet, PDF (3/37 Pages) IC-Haus GmbH – PROGRAMMABLE 12-BIT Sin/Cos INTERPOLATION IC WITH RS422 DRIVER

iC-MQF PROGRAMMABLE 12-BIT ^preliminary
Sin/Cos INTERPOLATION IC WITH RS422 DRIVER
CONTENTS
Rev A1, Page 3/37
PACKAGING INFORMATION
PIN CONFIGURATION TSSOP20 . . . . . .
ABSOLUTE MAXIMUM RATINGS
4
Offset Calibration CH0 . . . . . . . . . . . . . 25
4
SIGNAL LEVEL CONTROL and SIGNAL
5
MONITORING
26
THERMAL DATA
5 ^{SINE-TO-DIGITAL CONVERSION}
27
ELECTRICAL CHARACTERISTICS
PROGRAMMING
6 ^{OUTPUT SETTINGS AND ZERO SIGNAL}
28
Zero Signal Generation . . . . . . . . . . . . 28
12
Output Driver Configuration . . . . . . . . . . 29
REGISTER MAP
13
Minimum Transition Distance . . . . . . . . . 29
Signal Filter . . . . . . . . . . . . . . . . . . . 29
SERIAL CONFIGURATION INTERFACE
15
Example of CRC Calculation Routine . . . . . 15 ^{ERROR MONITORING AND ALARM OUTPUT 30}
EEPROM Selection . . . . . . . . . . . . . . 15
Alarm Output: I/O-pin ERR . . . . . . . . . . 30
I²C Slave Mode (ENSL = 1) . . . . . . . . . . 16
Line Count Error . . . . . . . . . . . . . . . . 30
Excessive Temperature Warning . . . . . . . 30
BIAS CURRENT SOURCE AND
TEMPERATURE SENSOR CALIBRATION 17
Excessive Temperature Shutdown . . . . . . 31
Driver Shutdown . . . . . . . . . . . . . . . . 31
Bias Current . . . . . . . . . . . . . . . . . . 17
Error Protocol . . . . . . . . . . . . . . . . . . 31
Temperature Sensor . . . . . . . . . . . . . . 17
OPERATING MODES
REVERSE POLARITY PROTECTION
32
18
Mode ABZ . . . . . . . . . . . . . . . . . . . 18 ^{TEST MODE}
33
Mode 191/193 . . . . . . . . . . . . . . . . . 18
Calibration 1, 2, 3, Test 5 . . . . . . . . . . . 19
TEST 6 . . . . . . . . . . . . . . . . . . . . . 19
System Test and Digital Calibration . . . . . . 19
Quick programming in the
single master system . . . . . . . . . . . 34
Quick programming in the
multimaster system . . . . . . . . . . . . 34
INPUT CONFIGURATION AND SIGNAL PATH
GENERAL APPLICATION HINTS
35
MULTIPLEXER
20
APPLICATION NOTES: SIGNAL
Current Signals . . . . . . . . . . . . . . . . . 20
CONDITIONING
35
Voltage Signals . . . . . . . . . . . . . . . . . 20
Signal Conditioning Example 1: . . . . . . . . 35
Signal Path Multiplexer . . . . . . . . . . . . . 21
Photodiode array connected to current
SIGNAL CONDITIONING CH1, CH2
inputs, LED supply with constant
23
current source . . . . . . . . . . . . . . 35
Gain Settings . . . . . . . . . . . . . . . . . . 23
Signal Conditioning Example 2: . . . . . . . . 36
Offset Calibration CH1, CH2 . . . . . . . . . 24
Encoder supplying 100 mVpp to voltage inputs 36
Phase Correction CH1 vs. CH2 . . . . . . . . 24
SIGNAL CONDITIONING CH0
APPLICATION NOTES: CIRCUIT EXAMPLES 36
25
Gain Settings CH0 . . . . . . . . . . . . . . . 25 DESIGN REVIEW: Function Notes
36