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IC-PI Datasheet(PDF) 1 Page - IC-Haus GmbH |
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IC-PI Datasheet(HTML) 1 Page - IC-Haus GmbH |
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1 / 49 page  preliminary preliminary iC-PI PROGRAMMABLE 12-BIT Sin/Cos INTERPOLATION IC WITH RS422 DRIVER Rev B1, Page 1/48 FEATURES • Latency-free sine-to-digital conversion with up to 4000/4096 angle steps • Input frequencies: 500 kHz (x10), 80 kHz (x100), 8 kHz (x1000) • Flexible pin assignment using signal path multiplexers • PGA inputs for differential and single-ended signals • Variable input resistance for current/voltage conversion • Signal conditioning for offset, amplitude, and phase • Controlled 50 mA current source for LED or MR sensor supply • Fault-tolerant RS422 output via adjustable drivers (up to 50 mA) • Glitch-free due to guaranteed minimum edge distance • Zero signal conditioning and electronic index pulse generation • Output of motor commutation signals: UVW with 1 to 8 cycles • Signal and operation monitoring with a configurable alarm output, output shutdown and error storage • I2C multi-master interface for configuration from ext. EEPROM • I2C slave interface for in-circuit calibration and position data • Adjustable over-temperature alarm and shutdown • Supply from 4.3 to 5.5 V, operation from -40 to +100 °C • Reverse-polarity-proof, including the sub-system APPLICATIONS • Rotary and linear encoders • Magnetic or optical angle sensor modules • Brushless motor commutation PACKAGES TSSOP20 RoHS compliant BLOCK DIAGRAM iC-PI REVERSEPOLARITY SIGNALPATHMUX CONFIGURATION SINE-TO-DIGITAL PROTECTION MONITORING CONVERTER PGAINPUTS REGISTERS INTERFACE CONDITIONING SERIALI2C CONTROL DRIVERS OUTPUT SIGNAL LEVEL INDEX GNDS SIGNAL VDDS ~LOCVDD GND ACO ERR SDA VDD SCL - X X X X X X X X + X + LineCount PCH2i NCH1i PCH0i NCH0i PCH1i NCH2i NA NB NZ PB PZ PA X4 X5 X3 X2 X6 X1 Sin/Cos Monitor Monitor COS X6 X4 PB SDA SCL NB GNDS X5 X2 NA PZ VDDS PA X3 NZ X1 ACO VDD GND ERR CH2 CH0 CH1 ADJ + Temp + PWR PHI SIN X X X X X X X X X Mon I/V I/V I/V I/V I/V I/V - °C PA X2 SCL X5 X1 VDDS X3 X6 ERR VDD GNDS SDA PZ NZ ADJ NB GND ~LOCVDD ACO PB X4 NA iC-PI REVERSEPOLARITY SIGNALPATHMUX CONFIGURATION SINE-TO-DIGITAL PROTECTION MONITORING CONVERTER PGAINPUTS REGISTERS INTERFACE CONDITIONING SERIALI2C CONTROL DRIVERS OUTPUT SIGNAL LEVEL INDEX GNDS SIGNAL VDDS ~LOCVDD GND ACO ERR VDD SDA SCL X X X X X X X X - X + + LineCount NCH2i NCH0i PCH1i PCH0i NCH1i PCH2i NA NB PB NZ PZ PA X1 X3 X5 X6 X2 X4 Sin/Cos Monitor Monitor COS SDA X5 ERR NZ PB PZ X2 GNDS X3 NB SCL GND VDDS PA X6 X4 VDD NA X1 ACO CH1 CH0 CH2 ADJ + + Temp PWR PHI SIN X X X X X X X X X Mon I/V I/V I/V I/V I/V I/V - °C X3 PA ERR X5 GNDS ACO ADJ NA VDDS X6 X1 X2 SCL VDD PZ NZ SDA X4 PB ~LOCVDD GND NB Copyright © 2014, 2018 iC-Haus http://www.ichaus.com |
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