IC-TW28 Datasheet, PDF (19/80 Pages) IC-Haus GmbH – 10-BIT SIN/COS INTERPOLATOR

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Rev D2, Page 19/80
The basic electrical connections for a typical
stand-alone application using the iC-TW28 in serial
configuration mode using the SPI port are shown in
Figure 11. Other than the sin/cos sensor, only a few
bypass capacitors and other components are required
for operation.
3.3V
PINCFG tied low for
SPI Configuration mode
1µF
iC-TW28
DVDD
PINCFG
DVSS
IOVDD
IOVSS
Sensor
Calibration
Button
3.3V
1µF
AVDD
AVSS
3.3V
1k Ω
100
nF
SIN+
SIN–
COS+
COS–
ZERO+
ZERO–
xRST
xCALIB
VREF
VC
100
100
nF
nF
A+
A–
B+
B–
Z+
Z–
xIRQ
RESERVED
RESERVED
RESERVED
xSS/C0
SCLK/C1
SI/C2
SO/C3
3.3V
1µF
3.3V
120 Ω
Differential
120 Ω
RS422
ABZ Outputs
120 Ω
Fault LED
3.3V
xSS
SPI
SCLK
MOSI
Configuration
MISO Port
Figure 11: Typical Electrical Connections For Stand-Alone SPI Configuration Application