Calibration Of The Errors - Renesas RAA3064002GFP User Manual

RAA3064002GFP/RAA3064003GFP
SPI communications
State of the internal circuits
4.4

Calibration of the Errors

This IC is capable of calibration in the following three ways to correct the corresponding types of error.
1. Gain calibration to correct the relative errors in gain between the combination of differential amplifier A
and phase adjustment circuit A, and between the combination of differential amplifier B and phase
adjustment circuit B
2. Phase calibration to adjust the phase difference between phase adjustment circuits A and B to be 90°
3. Carrier error calibration to correct for errors due to the coils of the resolver sensor
For the usage of calibrations, see the application notes Using the Driver for Resolver-to-Digital Converter
Control (R03AN0013EJ) and Usage Notes on Correcting Errors in Angles Detected by the Resolver-to-
Digital Converter (R03AN0015EJ).
R03UZ0002EJ0120 Rev.1.20
Apr 05, 2021
Writing 1 to the
SWRST register
(applying the reset)
Resolver signals
Power-saving state
can be converted.
Figure 4.8 Sequence of a Software Reset
Communications enabled
Writing 0 to the
Release from the power-saving state
SWRST register
(by register settings)
(releasing the reset)
Release from the
power-saving state
Min. 30 ms
4. Operation
Resolver signals
can be converted.
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