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Features .................................................................................................................................... 1
1.
Overview ............................................................................................................................ 2
1.1
Features ........................................................................................................................................ 3
1.2
Application ..................................................................................................................................... 3
1.3
Part Number .................................................................................................................................. 3
1.4
Overview of Functions ................................................................................................................... 4
1.5
Pin Assignment ............................................................................................................................. 5
1.6
List of Pin Functions ...................................................................................................................... 6
2.
Circuit Configuration ........................................................................................................... 8
2.1
Example of a System Configuration .............................................................................................. 8
2.2
Internal Block Diagram ................................................................................................................ 10
2.3
Internal Circuit ............................................................................................................................. 11
2.3.1
Resolver Actuator ................................................................................................................. 11
2.3.2
Resolver Signal Detection Block ........................................................................................... 12
2.3.3
Shunt Current Amplification Circuit ....................................................................................... 14
2.3.4
Control Block ......................................................................................................................... 15
2.3.5
Detection of the Internal State .............................................................................................. 16
2.3.6
Power Supply Circuit ............................................................................................................. 17
3.
Control Registers ............................................................................................................. 18
3.1
List of Registers .......................................................................................................................... 18
3.2
Register Descriptions .................................................................................................................. 19
3.2.1
Power-Saving Control Register 1 (PS1) ............................................................................... 19
3.2.2
Power-Saving Control Register 2 (PS2) ............................................................................... 20
3.2.3
Power-Saving Control Register 3 (PS3) ............................................................................... 21
3.2.4
Software Reset Register (SWRST)....................................................................................... 22
3.2.5
Differential Amplifier Input Range Monitoring Register (DDMNT) ........................................ 23
3.2.6
Alarm State Register (ALMST) ............................................................................................. 23
3.2.7
ALARM# Output Setting Register (ALMOUT) ....................................................................... 24
3.2.8
Monitor Output Selection Register (MNTSL) ........................................................................ 25
3.2.9
Monitor Output Mode Selection Register (MDCACSEL) ...................................................... 26
3.2.10 Differential Amplification Circuit Gain Selection Register (GCGSL) ..................................... 26
3.2.11 Phase Adjustment Circuit Gain Adjustment Value Selection Register (DLCGSL) ............... 27
3.2.12 Correction Circuit Gain Selection Register (CCGSL) ........................................................... 27
3.2.13 Shunt Current Amplification Circuit Control Register (CSACTL) .......................................... 28
3.2.14 Over-Temperature Detection Circuit Control Register (FOPER) .......................................... 29
3.2.15 Differential Amplifier Input Signal Level Detection Resetting Register (INITERR) ............... 29
3.3
Access to Registers .................................................................................................................... 30
4.
Operation ......................................................................................................................... 31
4.1
Basic Operation for Conversion of Signals from Resolver .......................................................... 31
4.2
Detection of Disconnection from the Resolver Sensor ............................................................... 34
4.3
Power-up Sequences and Reset Operation ............................................................................... 34
4.4
Calibration of the Errors .............................................................................................................. 36
5.
Electrical Characteristics .................................................................................................. 37
5.1
Absolute Maximum Ratings ........................................................................................................ 37
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