CHAPTER 13 A/D CONVERTER
Preliminary User’s Manual U17260EJ3V1UD
325
(11) Internal equivalent circuit
The equivalent circuit of the analog input block is shown below.
Figure 13-22. Internal Equivalent Circuit of ANIn Pin
ANIn
C1
C2
R1
Table 13-4. Resistance and Capacitance Values of Equivalent Circuit (Reference Values)
AV
REF
R1
C1
C2
4.0 V
≤
AV
REF
≤
5.5 V
8.1 k
Ω
8 pF
5 pF
2.7 V
≤
AV
REF
< 4.0 V
31 k
Ω
8 pF
5 pF
2.3 V
≤
AV
REF
< 2.7 V
381 k
Ω
8 pF
5 pF
Remarks 1.
The resistance and capacitance values shown in Table 13-4 are not guaranteed values.
2.
n = 0 to 7