參數(shù)資料
型號： 9S12XDP512DGV2
英文描述： Device User Guide for Mask Set L15Y - (Second Silicon - Enhanced Feature Set)
中文描述： 設(shè)備用戶指南掩模組L15Y - （二硅-增強(qiáng)的功能集）
文件頁數(shù)： 122/152頁
文件大小： 1231K
代理商： 9S12XDP512DGV2
M
MC9S12XDP512 Device User Guide — V01.12
122
Table A-11 ATD Operating Characteristics 3.3V
Conditions are shown in
Table A-4
unless otherwise noted, Supply Voltage 3.3V < VDDA < 3.6V
A.2.2 Factors influencing accuracy
Three factors - source resistance, source capacitance and current injection - have an influence on the
accuracy of the ATD.
A.2.2.1 Source Resistance:
Due to the input pin leakage current as specified in
Table A-7
in conjunction with the source resistance
there will be a voltage drop from the signal source to the ATD input. The maximum source resistance R
S
specifies results in an error of less than 1/2 LSB (2.5mV) at the maximum leakage current. If device or
operatingconditionsarelessthanworstcaseorleakage-inducederrorisacceptable,largervaluesofsource
resistance is allowed.
A.2.2.2 Source Capacitance
When sampling an additional internal capacitor is switched to the input. This can cause a voltage drop due
to charge sharing with the external and the pin capacitance. For a maximum sampling error of the input
voltage
≤
1LSB, then the external filter capacitor, C
f
≥
1024 * (C
INS
- C
INN
).
A.2.2.3 Current Injection
There are two cases to consider.
Num C
Rating
Symbol
Min
Typ
Max
Unit
1
D
Reference Potential
Low
High
V
RL
V
RH
V
SSA
V
DDA
/2
3.0
V
DDA
/2
V
DDA
3.6
V
V
2
C Differential Reference Voltage
1
NOTES
:
1. Full accuracy is not guaranteed when differential voltage is less than 4.50V
2. The minimum time assumes a final sample period of 2 ATD clocks cycles while the maximum time assumes a final sample
period of 16 ATD clocks.
V
RH
-V
RL
f
ATDCLK
3.3
V
3
D ATD Clock Frequency
0.5
TBD
MHz
4
D
ATD 10-Bit Conversion Period
Clock Cycles
2
Conv, Time at 2.0MHz ATD Clock f
ATDCLK
N
CONV10
T
CONV10
14
TBD
28
14
Cycles
μ
s
5
D
ATD 8-Bit Conversion Period
Clock Cycles
2
Conv, Time at 2.0MHz ATD Clock f
ATDCLK
N
CONV8
T
CONV8
12
TBD
26
13
Cycles
μ
s
6
D Recovery Time (V
DDA
=5.0 Volts)
t
REC
I
REF
I
REF
20
μ
s
7
P
Reference Supply current 2 ATD blocks on
0.500
mA
8
P
Reference Supply current 1 ATD block on
0.250
mA
F
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料
PDF描述
9V3 ELEMENT 10 MICRON E MEDIA
6RS15 Power-Supply Monitor with Reset
6RS3 Power-Supply Monitor with Reset
6RS7 ELEMENT 11.2 MICRON S MEDIA
9VS.1 ELEMENT 3.0 MICRON S MEDIA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
9S-14.7456MEFA20-IND 制造商:Hong Kong Crystal 功能描述:14.7456M,CRYSTAL 制造商:Hong Kong Crystal 功能描述:HC49US CRYSTALS METAL CAN 制造商:Hong Kong Crystal 功能描述:HC49USCRYSTALS METAL CAN
9S-16MEFA22-IND 制造商:Hong Kong Crystal 功能描述:16MHzAT-49US CRYSTALS METAL CAN
9S-16MEFA30-IND 制造商:Hong Kong Crystal 功能描述:HC49USCRYSTALS METAL CAN
9S-18.432MEFA18-IND 制造商:Hong Kong Crystal 功能描述:18.432MHz,crystals 制造商:Hong Kong Crystal 功能描述:HC49USCRYSTALS METAL CAN 制造商:Hong Kong Crystal 功能描述:HC49US CRYSTALS METAL CAN
9S-18.432MEFA22-IND 制造商:Hong Kong Crystal 功能描述:HC49USCRYSTALS METAL CAN 制造商:Hong Kong Crystal 功能描述:18.432MHz,crystals 制造商:Hong Kong Crystal 功能描述:HC49US CRYSTALS METAL CAN
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*