iC-NQ
13-bit Sin/D CONVERTER WITH CALIBRATION
Rev D1, Page 1/25
FEATURES
o
Resolution of up to 8192 angle steps per sine/cosine period
o
Binary and decimal resolution settings, e.g. 500, 512, 1000,
1024; programmable angle hysteresis
o
Conversion time of just 250 ns including amplifier settling
o
Count-safe vector follower principle, realtime system with
70 MHz sampling rate
o
Direct sensor connection; selectable input gain
o
Front-end signal conditioning features offset (8 bit), amplitude
ratio (5 bit) and phase (6 bit) calibration
o
250 kHz input frequency
o
Parameterization and absolute angle output via bidirectional
high-speed synchronous-serial BiSS Interface (B protocol)
o
A QUAD B incremental outputs with selectable minimum
transition distance (e.g. 0.25 µs for 1 MHz at A)
o
Index signal processing adjustable in position and width
o
Fault monitoring: frequency, amplitude, configuration (CRC)
o
Multiturn counting to 8 bit or 24 bit
o
Fully re-programmable by BiSS interface with access to serial
EEPROM to store setup
o
ESD protection and TTL-/CMOS-compatible outputs
APPLICATIONS
o
Interpolator IC for position data
acquisition from analog
sine/cosine sensors
o
Optical linear/rotary encoders
o
MR sensor systems
PACKAGES
TSSOP20
BLOCK DIAGRAM
Copyright © 2002, 2009 iC-Haus