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IC-NQL Datasheet(PDF) 1 Page - IC-Haus GmbH |
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IC-NQL Datasheet(HTML) 1 Page - IC-Haus GmbH |
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1 / 24 page  iC-NQL 13-bit Sin/D CONVERTER WITH SSI INTERFACE Rev B1, Page 1/24 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 Absolute angle output via fast SSI interface o 8-bit on-chip period counter 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 Setup via serial EEPROM 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 - + - + INPUT SIN Sin/D CONVERSION E2PROM INTERFACE INCREMENTAL OUTPUT CORRECTION CONTROL LOGIC ARCTAN COS - + - + SIN VDDA VREF + - INPUT ZERO RAM COUNTER PERIOD COUNTER iC-NQL INPUT COS Z VDD VDDA VREF PCOS PSIN PZERO SCL SDA NCOS NERR NSIN NZERO A B GND GNDA PHASE SSi INTERFACE DATA CLK Copyright © 2004, 2010 iC-Haus http://www.ichaus.com |
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