IC-NV光栅编码器芯片参考.pdf

iC-NV 6-BIT Sin/D FLASH CONVERTER Rev C1, Page 1/19 FEATURES APPLICATIONS ? Fast flash converter ? Angle interpolation from ortho- ? Integrated glitch filter; minimum transition distance can be set gonal sinusoidal input signals using the optional resistor ? Linear and rotary encoders ? Selectable resolution of up to 64 steps per cycle and up to ? MR sensor systems 16-fold interpolation ? Integrated instrumentation amplifiers with adjustable gain ? Direct connection of sensor bridges, no external components required ? 200kHz input frequency with the highest resolution ? Incremental A QUAD B output of up to 3.2MHz ? Reversed A/B phase selectable ? Index signal processing ? Sensor bridge calibration supportable by analog/digital test PACKAGES signals ? Low power consumption from single 5V supply ? TTL- /CMOS-compatible outputs ? Inputs and outputs protected against destruction by ESD TSSOP20 BLOCK DIAGRAM Copyright ? 2007, iC-Haus iC-NV 6-BIT Sin/D FLASH CONVERTER Rev C1, Page 2/19 DESCRIPTION iC-NV is a monolithic A/D converter which produces two digital A/B incremental signals phase-shifted at 90 from two sinusoidal input signals, also phase-shifted at 90 °. The converter operates on the flash principle with fast