IC-MQF_15 Datasheet, PDF (1/38 Pages) IC-Haus GmbH – Sin/Cos INTERPOLATION IC WITH RS422 DRIVER

iC-MQF PROGRAMMABLE 12-BIT ^preliminary
Sin/Cos INTERPOLATION IC WITH RS422 DRIVER
Rev C1, Page 1/38
FEATURES
• Latency-free sine-to-digital conversion to 4000 angle steps
• Input frequency: 200 kHz (x10), 20 kHz (x100), 2 kHz (x1000)
• Flexible pin assignment due to 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 outputs with 50 mA sink/source drive
current
• Preselectable minimum phase distance for spike-proof counter
stimulus
• Zero signal conditioning and electronic index pulse generation
• Signal and operation monitoring with configurable alarm output,
output shutdown and error storage
• I²C multimaster interface for in-circuit calibration and
parameters (EEPROM)
• Adjustable overtemperature 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
• Optical and magnetic position
sensors
• Linear scales
• High-resolution angle sensing
PACKAGES
TSSOP20
BLOCK DIAGRAM
VDDS
GNDS
SCL
SDA
SERIAL I2C
INTERFACE
X1
X2
X3
X4
X5
X6
ACO
PGA INPUT
I/V
I/V
I/V
I/V
I/V
I/U
CONFIGURATION
REGISTER
SIGNAL PATH MUX
iC-MQF
REVERSE POLARITY
PROTECTION
VDD
GND
SINE-TO-DIGTIAL
CONVERSION
CALIBRATION
x
CH0 _-
x
x
CH2 - ₊
x
x
x
CH1 -
x
LineCount
Monitor
MONITORING
Sin/Cos
Monitor
PWRon
C
Tw
Toff
ERR
PHI
DIGITAL DRIVER
OUTPUT
PZ
ZIN
NZ
SIGNAL LEVEL
CONTROLLER
PB
x
NB
+-
PA
ADJ
x
NA
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