參數(shù)資料
型號(hào): MB90F351EPMC1
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 16-bit Proprietary Microcontrollers
中文描述: 16-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP64
封裝: 10 X 10 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-64
文件頁數(shù): 75/85頁
文件大?。?/td> 880K
代理商: MB90F351EPMC1
MB90350E Series
75
Notes on A/D Converter Section
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. Therefore to satisfy the A/D conversion precision standard, consider the relationship
between the external impedance and minimum sampling time and either adjust the register value and operating
frequency or decrease the external impedance so that the sampling time is longer than the minimum value. Also
if the sampling time cannot be sufficient, connect a capacitor of about 0.1
μ
F to the analog input pin.
· An
a
log inp
u
t e
qu
iv
a
lence circ
u
it
ON
a
t
sa
mpling
Note : The v
a
l
u
e i
s
reference v
a
l
u
e.
R
C
An
a
log inp
u
t
Comp
a
r
a
tor
MB90F
3
51E(
S
), MB90F
3
52E(
S
), MB90F
3
56E(
S
), MB90F
3
57E(
S
),
MB90F
3
51TE(
S
), MB90F
3
52TE(
S
),MB90F
3
56TE(
S
), MB90F
3
57TE(
S
)
C
R
4.5 V
AV
CC
5.5 V 2.0 k
(M
a
x) 16.0 pF (M
a
x)
4.0 V
AV
CC
4.5 V
8
.2 k
(M
a
x) 16.0 pF (M
a
x)
MB90V
3
40E-101/102/10
3
/104,
MB90
3
51E(
S
), MB90
3
52E(
S
),MB90
3
56E(
S
), MB90
3
57E(
S
),
MB90
3
51TE(
S
), MB90
3
52TE(
S
),MB90
3
56TE(
S
), MB90
3
57TE(
S
)
C
R
4.5 V
AV
CC
5.5 V 2.0 k
(M
a
x) 14.4 pF (M
a
x)
4.0 V
AV
CC
4.5 V
8
.2 k
(M
a
x) 14.4 pF (M
a
x)
相關(guān)PDF資料
PDF描述
MB90F351ESPMC 16-bit Proprietary Microcontrollers
MB90F351ESPMC1 16-bit Proprietary Microcontrollers
MB90F351TEPMC 16-bit Proprietary Microcontrollers
MB90F351TEPMC1 16-bit Proprietary Microcontrollers
MB90F351TESPMC 16-bit Proprietary Microcontrollers
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