參數(shù)資料
型號(hào)： DOC4106
廠(chǎng)商： Atmel Corp.
英文描述： Single-Chip Microcontroller with MP3 Decoder and Man-Machine Interface
中文描述： 單片微控制器，帶有MP3解碼器和人機(jī)界面
文件頁(yè)數(shù)： 40/47頁(yè)
文件大?。?/td> 791K
代理商： DOC4106
40
AT8xC51SND1C
4106F–8051–10/02
Analog to Digital Converter
Definition of Symbols
Table 52.
Analog to Digital Converter Timing Symbol Definitions
Characteristics
Table 53.
Analog-to-Digital Converter AC Characteristics
V
DD
= 2.7 to 3.3V, T
A
= 0 to 70
°
C
Notes:
1. A
V
DD
= AV
REFP
= 3.0 V, AV
SS
= AV
REFN
= 0 V. ADC is monotonic with no missing
code.
2. The differential non-linearity is the difference between the actual step width and the
ideal step width (see Figure 27).
3. The integral non-linearity is the peak difference between the center of the actual step
and the ideal transfer curve after appropriate adjustment of gain and offset errors
(see Figure 27).
4. The offset error is the absolute difference between the straight line, which fits the
actual transfer curve (after removing of gain error); and the straight line, which fits the
ideal transfer curve (see Figure 27).
5. The gain error is the relative difference in percent between the straight line which fits
the actual transfer curve (after removing of offset error); and the straight line, which
fits the ideal transfer curve (see Figure 27).
Waveforms
Figure 26.
Analog-to-Digital Converter Internal Waveforms
Signals
Conditions
C
Clock
H
High
E
Enable (ADEN bit)
L
Low
S
Start Conversion
(ADSST bit)
Symbol
Parameter
Min
Max
Unit
T
CLCL
Clock Period
1.43
μ
s
T
EHSH
Start-up Time
4
μ
s
T
SHSL
Conversion Time
11·T
CLCL
μ
s
D
LE
Differential non-
linearity error
(1)( 2)
TBD
LSB
I
LE
Integral non-
linearity error
(1)(3)
TBD
LSB
O
SE
Offset error
(1)(4)
TBD
LSB
G
E
Gain error
(1)(5)
TBD
%
ADEN Bit
ADSST Bit
T
EHSH
T
SHSL
CLK
T
CLCL
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