IC-MQF_15 Datasheet, PDF (3/38 Pages) IC-Haus GmbH – Sin/Cos INTERPOLATION IC WITH RS422 DRIVER

iC-MQF PROGRAMMABLE 12-BIT ^preliminary
Sin/Cos INTERPOLATION IC WITH RS422 DRIVER
CONTENTS
Rev C1, Page 3/38
PACKAGING INFORMATION
4
PIN CONFIGURATION TSSOP20 . . . . . . 4
Gain Settings CH0 . . . . . . . . . . . . . . . 25
Offset Calibration CH0 . . . . . . . . . . . . . 25
ABSOLUTE MAXIMUM RATINGS
5 SIGNAL LEVEL CONTROL and SIGNAL
MONITORING
26
THERMAL DATA
5
SINE-TO-DIGITAL CONVERSION
27
ELECTRICAL CHARACTERISTICS
6
OUTPUT SETTINGS AND ZERO SIGNAL
28
PROGRAMMING
12
Zero Signal Generation . . . . . . . . . . . . 28
REGISTER MAP
Output Driver Configuration . . . . . . . . . . 29
13
Minimum Transition Distance . . . . . . . . . 29
SERIAL CONFIGURATION INTERFACE
Signal Filter . . . . . . . . . . . . . . . . . . . 29
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
Intermediate error information buffer
(Addr. 0x40-0x43) . . . . . . . . . . . . 16
Excessive Temperature Warning . . . . . . . 30
Driver Shutdown . . . . . . . . . . . . . . . . 31
BIAS CURRENT SOURCE AND
TEMPERATURE SENSOR CALIBRATION 17
Error Logging . . . . . . . . . . . . . . . . . 31
Clearing ERR1, ERR2 and ERR3 . . . . . . . 31
Bias Current . . . . . . . . . . . . . . . . . . 17
REVERSE POLARITY PROTECTION
32
Temperature Sensor . . . . . . . . . . . . . . 17
TEST MODE
33
OPERATING MODES
18
Quick programming in the
Mode ABZ . . . . . . . . . . . . . . . . . . . 18
single master system . . . . . . . . . . . 34
Mode 191/193 . . . . . . . . . . . . . . . . . 18
Quick programming in the
Calibration 1, 2, 3, Test 5 . . . . . . . . . . . 19
multimaster system . . . . . . . . . . . . 34
TEST 6 . . . . . . . . . . . . . . . . . . . . . 19
System Test and Digital Calibration . . . . . . 19 ^{GENERAL APPLICATION HINTS}
35
INPUT CONFIGURATION AND SIGNAL PATH
MULTIPLEXER
APPLICATION NOTES: SIGNAL
20
CONDITIONING
35
Current Signals . . . . . . . . . . . . . . . . . 20
Signal Conditioning Example 1: . . . . . . . . 35
Voltage Signals . . . . . . . . . . . . . . . . . 20
Photodiode array connected to current inputs,
LED supply with constant current source 35
Signal Path Multiplexer . . . . . . . . . . . . 21
Signal Conditioning Example 2: . . . . . . . . 36
SIGNAL CONDITIONING CH1, CH2
23
Encoder supplying 100 mVpp to voltage inputs 36
Gain Settings . . . . . . . . . . . . . . . . . . 23 _{APPLICATION NOTES: CIRCUIT EXAMPLES 36}
Offset Calibration CH1, CH2 . . . . . . . . . 24
Phase Correction CH1 vs. CH2 . . . . . . . . 24 DESIGN REVIEW: Notes On Chip Functions 36
SIGNAL CONDITIONING CH0
25 REVISION HISTORY
37