IC-MSA Datasheet, PDF (20/29 Pages) IC-Haus GmbH – SIN/COS SIGNAL CONDITIONER with AGC and 1Vpp DRIVER

iC-MSA SIN/COS SIGNAL
preliminary
CONDITIONER with AGC and 1Vpp DRIVER
SIGNAL PATH MULTIPLEXING
Rev A1, Page 20/29
Figure 5: Multiplexer Schematics
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 input.
MUXIN
Code
00
01
10
11
Addr 0x43, bit 1:0
PCH1i
NCH1i
X4
X6
X4
X6
X4
X5
X4
X3
PCH2i
X3
X5
X3
X5
NCH2i
X5
X5
X6
X6
EAZ permits the activation of an analog comparator for
index channel CH0.
EAZ
Code
0
1
Addr 0x43, bit 7
Function
Comparator bypass
Comparator active
Table 22: Index Output
For output purposes INVZ allows the index signal
phase to be inverted.
Table 20: Input Multiplexer for INMODE = 0
MUXIN
Code
-0
-1
Addr 0x43, bit 1:0
PCH1i
NCH1i
X4
X2
X4
X2
PCH2i
X3
X5
NCH2i
X2
X2
INVZ
Code
0
1
Addr 0x43, bit 3
PZ_out
NZ_out
PCH0o
NCH0o
NCH0o
PCH0o
Table 23: Index Signal Inversion
Table 21: Input Multiplexer for INMODE = 1