External Multiplexing Of Analog Signal Sources - Motorola ColdFire MCF5281 User Manual

Signal Connection Considerations
Analog Signal Source
R Source
2
~
C Source
R Source
2
~
C Source
R Source
2
~
C Source
R Source
2
~
C Source
R Source
2
~
C Source
R Source
2
~
C Source
R Source2
~
C Source
R Source
2
~
C Source
R Source
2
~
C Source
Figure 27-52. External Multiplexing of Analog Signal Sources
27-72
Filtering and
(MC54HC4051, MC74HC4051,
Interconnect
MC54HC4052, MC74HC4052,
MC54HC4053, etc.)
R Filter
2
0.01 µF 1
C Filter C MUXIN
R Filter
2
1
0.01 µF
C Filter C MUXIN
R Filter
2
1
0.01 µF
C Filter C MUXIN
R Filter
2
1
0.01µF
C Filter C MUXIN
R Filter
2
1
0.01 µF
C Filter C MUXIN
R Filter
2
1
0.01 µF
C Filter C MUXIN
R Filter
2
0.01 µF 1
C Filter C MUXIN
R Filter
2
1
0.01 µF
C Filter C MUXIN
R Filter
2
1
0.01 µF
Notes:
C Filter
1. Typical Value
2. R
Filter
MCF5282 User's Manual
Typical MUX Chip
Interconnect
R MUXOUT
C MUXOUT
, Typically 10 kΩ–20 kΩ
QADC
C P C SAMP
C PCB
C = C + C
In P SAMP
C P C SAMP
C PCB
MOTOROLA