Overview Interpolators Overview Encoder iCs

iC-NQ    13-Bit Signal Conditioning Interpolator with BiSS B Interface

Applications
  • Interpolator IC for position data acquisition from analog sine/cosine sensors
  • Optical linear/rotary encoders
  • MR sensor systems
Features
  • Resolution of up to 8192 angle steps per sine/cosine period
  • Binary and decimal resolution settings, e.g. 500, 512, 1000, 1024; programmable angle hysteresis
  • Conversion time of just 250 ns including amplifier settling
  • Count-safe vector follower principle, realtime system with 70 MHz sampling rate
  • Direct sensor connection; selectable input gain
  • Front-end signal conditioning features offset (8 bit), amplitude ratio (5 bit) and phase (6 bit) calibration
  • 250 kHz input frequency
  • Parameterization and absolute angle output via bidirectional high-speed synchronous-serial BiSS Interface (B mode)
  • A QUAD B incremental outputs with selectable minimum transition distance (e.g. 0.25 µs for 1 MHz at A)
  • Index signal processing adjustable in position and width
  • Fault monitoring: frequency, amplitude, configuration (CRC)
  • Multiturn counting to 8 bit or 24 bit
  • Fully re-programmable by BiSS interface with access to serial EEPROM to store setup
  • ESD protection and TTL-/CMOS-compatible outputs
Packages
    TSSOP20
Block Diagram
Blockdiagram
 
Product Overview
Shop
North America Webshop
Buy iC-NQ