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參數(shù)資料
| 型號： | MB91354APMT |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-Bit Proprietary Microcontroller |
| 中文描述： | 32-BIT, MROM, 50 MHz, RISC MICROCONTROLLER, PQFP176 |
| 封裝： | 24 X 24 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, LQFP-176 |
| 文件頁數(shù)： | 101/111頁 |
| 文件大小： | 1202K |
| 代理商： | MB91354APMT |
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MB91350A Series
101
About the external impedance of the analog input and its sampling time
A/D converter with sample and hold circuit. If the external impedance is too high to keep sufficient sampling
time, the analog voltage charged to the internal sample and hold capacitor is insufficient, adversely affecting
A/D conversion precision.
To satisfy the A/D conversion precision standard, consider the relationship between the external impedance
and minimum sampling time and either adjust the resistor value and operating frequency or decrease the
external impedance so that the sampling time is longer than the minimum value.
If the sampling time cannot be sufficient, connect a capacitor of about 0.1
μ
F to the analog input pin.
About errors
As |AVRH-AV
SS
| becomes smaller, values of relative errors grow larger.
R
C
Analog input
Comparator
Analog input circuit model
During Sampling : ON
Note : The values are reference values.
R
C
MB91355A
MB91F355A
MB91F356B
0.18 k
(Max)
0.18 k
(Max)
0.18 k
(Max)
63.0 pF (Max)
39.0 pF (Max)
39.0 pF (Max)
100
90
80
70
60
50
40
30
20
10
0
0
5
10
15
20
25
30
35
MB91F355A/MB91F356B
MB91355A
20
18
16
14
12
10
8
6
4
2
0
0
1
2
3
4
5
6
8
7
MB91F355A/MB91F356B
MB91355A
(External impedance
=
0 k
to 100 k
)
E
]
Minimum sampling time [
μ
s]
(External impedance
=
0 k
to 20 k
)
]
Minimum sampling time [
μ
s]
The relationship between the external impedance and minimum sampling time
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PDF描述 |
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| MB91V350A | 32-Bit Proprietary Microcontroller |
| MB91F355APMT-002 | 32-Bit Proprietary Microcontroller |
| MB91F356BPMT | 32-Bit Proprietary Microcontroller |
| MB91360G | 32-bit RISC Microcontroller |
| MB91FV360GACR | 32-bit RISC Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB91355A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Microcontroller |
| MB91355APMT | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-Bit Proprietary Microcontroller |
| MB91360G | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit RISC Microcontroller |
| MB91360G_05 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit RISC Microcontroller |
| MB91366GA | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit RISC Microcontroller |
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