IC-MQ_15 Datasheet, PDF (41/43 Pages) IC-Haus GmbH – Sin/Cos INTERPOLATION IC WITH RS422 DRIVER

iC-MQ PROGRAMMABLE 9-BIT
Sin/Cos INTERPOLATION IC WITH RS422 DRIVER
Rev F3, Page 41/43
the controller recognizes as an error. If there is an
overload at the outputs, via its temperature protection
unit iC-DL itself makes sure that the driver outputs are
shutdown (tristate) - which the controller also classes
as an error. In addition iC-MQ can transmit the overload
to the error memory as a system error when information
is returned to the bidirectional I/O pin ERR (as shown).
iC-MQ
iC-DL
Figure 28: Application example with 24 V line driver.
+SINE
-SINE
C2
100nF
VP
SCL
24xx
VN^SDA
RS2
1k
RS1
RS3
120
1k
RS4
1k
CS1
470pF
R1
2.2k
CS3
47pF
CS2
470pF
R2
2.2k
SCL
VDDS
VDD
I2C
SDA
ACO
SIGNAL
LEVEL
CONTROL
Reverse
Polarity
Protection
iC-MQ
X4 ₊
- ^X6
+COSINE
RC1
120
-COSINE
RC2
1k
RC4
1k
CC1
470pF
RC3
CC3
1k
47pF
CC2
470pF
X3 ₊
- ^X5
X1 ₊
- ^X2
GNDS
GND
case
C3
100nF
ERR
C4
1μF
R3
1k
DLED
PZ
NZ
PB
NB
PA
NA
F1
+5V
D1
5.6V
ERR
PZ
NZ
PB
NB
PA
NA
0V
TVS-Diode-Array
Figure 29: Input circuit for sine encoders (0.8 Vpp to 1.2 Vpp) with 120 Ω termination
and low-pass filtering. RS2/RS4, respectively RC2/RC4, serve as protec-
tion against ESD and transients, RS3/RC3 reduce the input signal to suit
an input gain of 3.