CHAPTER 10 A/D CONVERTER
Preliminary User’s Manual U16846EJ1V0UD
201
(12) Internal equivalent circuit
The equivalent circuit of the analog input block is shown below.
Figure 10-22. Internal Equivalent Circuit of ANIn Pin
ANIn
C1
C2
C3
R1
R2
Table 10-4. Resistance and Capacitance Values of Equivalent Circuit (Reference Values)
AV
REF
R1 R2 C1 C2 C3
2.7 V
12 k
Ω
8
k
Ω
8 pF
3 pF
0.6 pF
4.5 V
4 k
Ω
2.7
k
Ω
8 pF
1.4 pF
0.6 pF
Remarks 1. The resistance and capacitance values shown in Table 10-4 are not guaranteed values.
2. n = 0 to 3