IC-TW2 Datasheet, PDF (1/30 Pages) IC-Haus GmbH – 8-BIT SIN/COS INTERPOLATION IC WITH INTEGRATED EEPROM

iC-TW2 8-BIT SIN/COS INTERPOLATION IC
WITH INTEGRATED EEPROM
Rev D3, Page 1/30
FEATURES
o Programmable angle resolution from 1 to 256 steps per period
o Interpolation factors from x0.25 to x64
o Input frequency to 115 kHz with x64, to 230 kHz with x32, to
460 kHz with x16
o Latency of less than 1 µs
o Selectable gain permits single-ended and differential input
signals from 10 mV to 1.5 V peak-peak
o Index gating input with fine adjustable offset
o Programmable index pulse output position and width
o Four incremental output modes: quadrature encoder with
index, up/down clock, increment/direction, 3 phase
commutation
o Programmable filter and hysteresis
o Direct sensor connection, minimized count of external
components
o Non-volatile setup due to internal EEPROM
o Fully re-programmable via serial 1- and 2-wire interfaces
o Power-on reset circuit and on-chip oscillator
o ESD protection and TTL-/CMOS-compatible outputs
APPLICATIONS
o Interpolation IC for position data
acquisition from analog
sine/cosine sensors
o Optical linear and rotary
encoders
o Magneto resistive sensors and
encoders
PACKAGES
QFN24
BLOCK DIAGRAM
PINA
NINA
PINB
NINB
PINZ
NINZ
VDDA
+
-
-
+
+
-
-
+
+
-
-
+
GNDA
SIN/D
CONVERSION
FILTER
HYSTERESIS
SIGNAL PROCESSING
Zin
INDEX ENABLE
NRST
POWER-
ON
RESET
iC-TW2
ABZ- /
UVW-
GENERATOR
REGISTERS
INTERNAL EEPROM
SYSTEM
CLOCK
VDD
CLKSEL
CLKEXT
B_V
NB_NV
A_U
NA_NU
Z_W
NZ_NW
SDAT
1W-/2W-
INTERFACE
SCLK
1W
BANDGAP
VC
GND
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http://www.ichaus.com