3-3 cautions, Xv - 16 – Panasonic MN101C77C User Manual
Page 490

Chapter 15 A/D Converter
Operation
XV - 16
15-3-3
Cautions
A/D conversion can be damaged by noise easily, therefore, anti-noise measures should be taken ad-
equately .
Anti-noise measures
To A/D input (analog input pin), add condenser near the V
SS
pins of micro controller.
Figure 15-3-2 A/D Converter Recommended Example 1
Figure 15-3-3 A/D Converter Recommended Example 2
V
DD
Digital V
DD
Analog V
DD
Power supply
Digital V
SS
Analog V
SS
Set near the V
SS
pin
V
SS
V
REF+
V
REF-
AN0
to
AN6
V
DD
V
DD
V
SS
Power supply
Set near the V
SS
pin.
V
SS
V
REF+
V
REF-
AN0
to
AN6
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