IC-TW8_16 Datasheet, PDF (1/67 Pages) IC-Haus GmbH – 16-BIT SIN/COS INTERPOLATOR

iC-TW8 16-BIT SIN/COS INTERPOLATOR
WITH AUTO-CALIBRATION
Rev C2, Page 1/67
FEATURES
• Input frequency of up to 125 kHz
• Binary/decimal interpolation factors from x0.25 to x16384
• Post-AB divider [1/1 to 1/32] allows fractional resolution
• Differential sine/cosine input signal range of
20 mV to 1.4 V peak-peak
• Automatic offset, gain match and phase correction
• Simple automatic one-pin calibration
• Easy configuration: by static pins (for generic ABZ output)
• Advanced configuration: 1-wire interface, 3 and 4-wire SPI
(32 MHz), serial I²C EEPROM
• PWM or ABZ quadrature encoder output signals
• Incremental ABZ output to 8 MHz (32 MHz edge separation)
• Position and velocity read-out (32 bit SPI)
• Sophisticated error handling and signal monitoring
• Static 64 position LUT to compensate for arbitrary sensor
distortions
• Supply voltage range of 3.1 V to 5.5 V
• Extended temperature range of -40 to +125 °C
APPLICATIONS
• Sine/cosine interpolation
• Signal conditioning with auto
calibration
• Linear and rotary encoders
• Flexible incremental encoder
systems
PACKAGES
dra_qfn48-7x7-2_pack_2, 2:1
48-pin QFN
7 mm x 7 mm
RoHS compliant
BLOCK DIAGRAM
SIN+
+
SIN-
_
COS+
+
COS-
_
ZERO+
+
ZERO-
_
XIN
XOUT
VC
VREF
CRYSTAL
DRIVER
BANDGAP
xRST
RESET
AVDD
ADC
ADC
DIGITAL
SIGNAL
PROCESSING
iC-TW8
MEMORY
FAULT
STATUS
FRAME
CLOCK
CALIB
FAB
CONTROL
AVSS
DVDD
QUADRATURE
PWM
GENERATOR
OUTA
OUTB
OUTZ
SDA
EEPROM
SCL
MASTER
WP
1-WIRE
INTERFACE
EESEL
IR
SPI
SPI_SO
SPI_SI
SPI_SCLK
SPI_xSS
PIN
CONFIG.
INTERFACE
DVSS
C3
C2
C1
C0
PINSEL
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