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RAA3064002GFP/RAA3064003GFP
2.
Circuit Configuration
2.1
Example of a System Configuration
Figures 2.1 and 2.2 show examples of system configurations. For the specifications of the recommended
peripheral components, see the application note Guide to Selecting Peripheral Components for Use with the
Resolver-to-Digital Converters (R03AN0012EJ).
MCU
Timer output pin
Serial interface pin
Serial interface pin
Serial interface pin
Serial interface pin
VDD
R
General-purpose
port output pin
ADC input pin
ADC input pin
R
ADC input pin
C
R
ADC input pin
C
R
R
Timer output pin
C
C
R
Timer output pin
Timer input pin
R
R
Timer output pin
C
C
Timer output pin
Timer output pin
Figure 2.1 Example of a System Configuration with a Transformer-Type Resolver Sensor and Multiple-
R03UZ0002EJ0120 Rev.1.20
Apr 05, 2021
This IC
Control block
CLK
SDO
SDI
SPI
SCLK
CS#
RESET#
Reset
I1OUT
I2OUT
Monitoring
MNTOUT
circuit
CARRIER
C
Resolver signal detection block
Waveform
COUT
shaping
circuit
CC
C
PWMINA
PWMINB
Filter 1
Filter 2
R
C
C
R
R
Feedback First-Order Band-Pass Filters 1 and 2
Shunt current
amplification
circuit
Resolver actuator
Resolver
actuator
Phase
Synthesizer
adjustment
circuit
circuit A
Correction
circuit
Phase
adjustment
circuit B
R
R
R
C
C
C
C
R
R
2. Circuit Configuration
EV
DD
C
EV
SS
AV
DD
C
AV
SS
IOV
DD
C
IOV
SS
REGC
C
Reference
R
I2INP
voltage
I1INP
C
Reference
I2INN
R
voltage
I1INN
C
R
C
R
C
EXCFBN
EXCOUT1
C
R
EXCFBP
EXCOUT2
Negative
excitation
R
XAP
SIN+
Differential
Sine resolver
XAN
amplifier A
SIN-
detection signal
R
R
XBP
COS+
Cosine resolver
Differential
amplifier B
detection signal
XBN
COS-
R
Transformer-type
resolver sensor
Page 8 of 52
5-V power
source
VDD
M
Positive
excitation
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