CHAPTER 10 A/D CONVERTER
Preliminary User’s Manual U16898EJ1V0UD
153
Table 10-1. Sampling Time and A/D Conversion Time
f
XP
= 8 MHz
f
XP
= 10 MHz
FR2 FR1 FR0 Sampling
Time
Note 1
Conversion
Time
Note 2
Sampling
Time
Note 1
Conversion
Time
Note 2
Sampling
Time
Note 1
Conversion
Time
Note 2
0 0 0
12/f
XP
36/f
XP
1.5
µ
s 4.5
µ
s 1.2
µ
s 3.6
µ
s
0 0 1
24/f
XP
48/f
XP
3.0
µ
s 6.0
µ
s 2.4
µ
s 4.8
µ
s
0 1 0
48/f
XP
72/f
XP
6.0
µ
s 9.0
µ
s 4.8
µ
s 7.2
µ
s
0 1 1
88/f
XP
112/f
XP
11.0
µ
s 14.0
µ
s 8.8
µ
s 11.2
µ
s
1 0 0
24/f
XP
72/f
XP
3.0
µ
s 9.0
µ
s 2.4
µ
s 7.2
µ
s
1 0 1
48/f
XP
96/f
XP
6.0
µ
s 12.0
µ
s 4.8
µ
s 9.6
µ
s
1 1 0
96/f
XP
144/f
XP
12.0
µ
s 18.0
µ
s 9.6
µ
s 14.4
µ
s
1 1 1
176/f
XP
224/f
XP
22.0
µ
s 28.0
µ
s 17.2
µ
s 22.4
µ
s
Notes 1. Set the sampling time as follows.
•
AV
REF
≥
4.5 V:
1.0
µ
s or more
•
AV
REF
≥
4.0 V:
2.4
µ
s or more
•
AV
REF
≥
2.85 V: 3.0
µ
s or more
•
AV
REF
≥
2.7 V:
11.0
µ
s or more
2. Set the A/D conversion time as follows.
•
AV
REF
≥
4.5 V:
3.0
µ
s or more and less than 100
µ
s
•
AV
REF
≥
4.0 V:
4.8
µ
s or more and less than 100
µ
s
•
AV
REF
≥
2.85 V: 6.0
µ
s or more and less than 100
µ
s
•
AV
REF
≥
2.7 V:
14.0
µ
s or more and less than 100
µ
s
Remark f
XP
: Oscillation frequency of clock to peripheral hardware
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