IC-MQ_15 Datasheet, PDF (21/43 Pages) IC-Haus GmbH – Sin/Cos INTERPOLATION IC WITH RS422 DRIVER

iC-MQ PROGRAMMABLE 9-BIT
Sin/Cos INTERPOLATION IC WITH RS422 DRIVER
SIGNAL PATH MULTIPLEXING
Rev F3, Page 21/43
MUX_IN
Calibration
X1
MUX_OUT
X2
X3
VREFin0
PCH0i
+
PCH0o
NCH0i
-
NCH0o
INVZ
0
1
PZO ₊
- NZO
ZIN
MUXIN(0)
X4
01
PCH2i
+
PCH2o
MUXIN(1)
NCH2i
-
NCH2o
X5
01
PCH1i
+
PCH1o
X6
MUXIN(1)
01
NCH1i
-
NCH1o
VREFin12
INMODE
VDC1
VDC2
PC_out
NC_out
PS_out
NS_out
VDC1
VDC2
Figure 6: Principle Of Multiplexer Function
The signals for index channel CH0 are connected up to
pins X1 and X2. Pins X3 to X6 are allocated to internal
channels CH1 and CH2 via MUXIN. INMODE can be
activated for referenced input signals; this then selects
X2 as the reference signal input. For output purposes
INVZ allows the index signal phase to be inverted for
channel CH0.
MUXIN
Code
00
01
10
11
Addr 0x03, bit 1:0
PCH1i
NCH1i
X4
X6
not permitted
X4
X5
X4
X3
PCH2i
X3
X3
X5
NCH2i
X5
X6
X6
Table 20: Input Multiplexer for INMODE = 0
MUXIN
Code
00
01
10
11
Addr 0x03, bit 1:0
PCH1i
NCH1i
X4
X2
not permitted
not permitted
X4
X2
PCH2i
X3
X5
NCH2i
X2
X2
Table 21: Input Multiplexer for INMODE = 1
INVZ
Code
0
1
Addr 0x03, bit 3
PZO
NZO
PCH0o
NCH0o
NCH0o
PCH0o
Table 22: Index Signal Inversion