IC-MHM Datasheet, PDF (59/63 Pages) IC-Haus GmbH – 14-BIT ABSOLUTE ANGLE HALL ENCODER

iC-MHM
14-BIT ABSOLUTE ANGLE HALL ENCODER
APPLICATION EXAMPLE 1: Multiturn Encoder Using iC-PV
Rev D1, Page 59/63
iC-PV
VDDB
SUPPLY SWITCH
LOGIC AND SERIAL INTERFACE
SSI Interface
SERIAL/
PARALLEL
OUTPUT
DI_P1
VDD
Monitor
RAM
I2C
MULTI
MASTER
POSITION DECODE
PRE
HALL SPIKE CONTROL
MULTITURN
COUNTER
ERROR
MONITOR
VDDS
SCL
SDA
DO_P0
N0
CLK_N1
NERR
XII
WAKE
IX
III
UP
VI
TRIGGER
OSCILLATOR
-
PSIN
+
B
B
+
NSIN
-
-
PCOS
B
B
+
NCOS
+
-
P2
N2
HALL SENSORS
GND
SIN/DIG CONVERTER
VDD
EEPROM
SDA SCL GND
P1
P1
P2
P2
P3
P3
Digital I/O
Ports
MDI
Multiturn
MCL
Interface
NERR
Error Monitor
NCS
NCS
SPI Interface
SCL
I2C Interface
SDA
B
PCOS
B
NSIN
B
PSIN
B
NCOS
Hall Sensors
VDDS
SIN ² + COS ²
Amplitude
Control
Signal Conditioning
0x00
0x13
0x40
0x70
0x77
RAM
Sine-to-Digital
Converter
iC-MHM
Bandgap Reference
GNDS
VDD
Reverse Polarity
Protection
SIN
COS
Analog Line Drivers
PSIN
NSIN
PCOS
NCOS
Serial Interface
Reverse Polarity
Protection
MAO
NMAO
MA
NMA
SLI
NSLI
SLO
NSLO
GND
VDD
PSIN
NSIN
PCOS
NCOS
MAO
NMAO
MA
NMA
SLI
NSLI
SLO
NSLO
GND
Figure 44: Magnetic Absolute Encoder with Battery-Buffered Multiturn Sensor.
Both devices share a single EEPROM configured via the iC-MHM BiSS interface.
Note: Circuit examples are provided for illustration of principle. Additional components required for a successful
application may be omitted for clarity.