IC-HF Datasheet, PDF (27/36 Pages) IC-Haus GmbH – 6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER

iC-HF
preliminary
6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER
iC-MU
Rev C1, Page 27/36
iC-MU is an off-axis nonius encoder with integrated Hall
sensors. An example of iC-MU with iC-HF is shown in
figure 30.
In this example, iC-MU is in ABZ function and iC-HF
in A/B/Z and U/V/W mode. These signals are deliv-
ered through output pins PB0 to PB2, and PB3. iC-HF
provides reverse polarity protection.
A microcontroller communicates with iC-MU. It can au-
tomatically enable/disable iC-HF output channels by
driving OEN pin. NERR from iC-HF is used as external
interrupt.
VPA
VPD
iC-MU
ANA/DIG OUTPUT
1 μF
PB0 A
PB1
B
PB2
Z
SER INTERFACE
SCL
SDA
I2C INTERFACE
PB3 NER
PA0
PA1
PA2
PA3
VNA
VND
VDDS
GNDS
X1
NX1
X2
NX2
X3
NX3
X4
REVERSE POLARITY PROTECTION
VDD
GND
RS422 output
TRI
Q1
NQ1
RS422 output
RS422 output
RS422 output
TRI
Q2
NQ2
Q3
NQ3
Q4
NQ4
X5
X6
PTC
ECM
OEN
FMSEL1
FMSEL2
NERRI
BYP EBIS TRI
CONTROL
LOGIC
OVT
PoDo
1
RS422 output
RS422 output
Q5
NQ5
Q6
NQ6
BYPR
ENCODER LINK
REQUEST
DETECTION
OVT
PoDo
OVERTEMP
POWER DOWN
Q1
NQ1
NERR
iC-HF
4..5.5V
1 μF
A
B
Z
NER
EEPROM
uC
Figure 30: Example application with iC-MU and microcontroller with iC-HF in A/B/Z and U/V/W mode