參數(shù)資料
型號: DOC4106
廠商: 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
文件頁數(shù): 27/47頁
文件大小: 791K
代理商: DOC4106
27
AT8xC51SND1C
4106F–8051–10/02
A-to-D Converter
Table 35.
A-to-D Converter DC Characteristics V
DD
= 2.7 to 3.3V , T
A
= -40
°
to +85
°
C
Symbol
Parameter
Oscillator and Crystal
Schematic
Figure 12.
Crystal Connection
Note:
For operation with most standard crystals, no external components are needed on X1
and X2. It may be necessary to add external capacitors on X1 and X2 to ground in spe-
cial cases (max 10 pF). X1 and X2 may not be used to drive other circuits.
Parameters
Table 36.
Oscillator and Crystal Characteristics V
DD
= 2.7 to 3.3V , T
A
= -40
°
to +85
°
C
Min
Typ
Max
Units
Test Conditions
A
V
DD
Analog Supply Voltage
2.7
3.3
V
AI
DD
Analog Operating Supply Current
600
μ
A
A
V
DD
= 3.3V
AIN1:0 = 0 to A
V
DD
AI
PD
Analog Standby Current
2
μ
A
A
V
DD
= 3.3V
ADEN = 0 or PD = 1
AV
IN
Analog Input Voltage
AV
SS
A
V
DD
V
AV
REF
Reference Voltage
A
REFN
A
REFP
AV
SS
2.4
A
V
DD
V
V
R
REF
AREF Input Resistance
10
30
k
T
A
= 25
°
C
T
A
= 25
°
C
C
IA
Analog Input capacitance
10
pF
V
SS
X1
X2
Q
C1
C2
Symbol
Parameter
Min
Typ
Max
Unit
C
X1
Internal Capacitance (X1 - VSS)
10
pF
C
X2
Internal Capacitance (X2 - VSS)
10
pF
C
L
Equivalent Load Capacitance (X1 - X2)
5
pF
DL
Drive Level
50
μ
W
F
Crystal Frequency
20
MHz
RS
Crystal Series Resistance
40
CS
Crystal Shunt Capacitance
6
pF
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