參數(shù)資料
型號(hào): T8xC51SND1
廠商: Atmel Corp.
英文描述: Single Chip Microcontroller with MP3 Decoder and Man Machine Interface
中文描述: 單芯片微控制器,帶有MP3解碼器和人機(jī)界面
文件頁數(shù): 37/60頁
文件大?。?/td> 868K
代理商: T8XC51SND1
37
T8xC51SND1
Rev. D
15-Nov-01
11.3 DC Characteristics - A to D Converter
Table 40.
A to D Converter DC Characteristics
VDD= 2.7 to 3.3 V, TA= -40 to +85
°
C
11.4 DC Characteristics - Oscillator & Crystal
11.5.1 Schematic
Figure 13.
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.
11.6.2 Parameters
Table 41.
Oscillator & Crystal Characteristics
VDD= 2.7 to 3.3 V, TA= -40 to +85
°
C
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
AV
DD
Analog Supply Voltage
2.7
3.3
V
AI
DD
Analog Operating Supply
Current
600
μ
A
AV
DD
= 3.3V
AIN1:0= 0 to AV
DD
AI
PD
Analog Standby Current
2
μ
A
AV
= 3.3V
ADEN= 0 or PD= 1
AV
IN
Analog Input Voltage
AV
SS
AV
DD
V
AV
REF
Reference Voltage
A
REFN
A
REFP
AV
SS
2.4
AV
DD
V
V
R
REF
AREF Input Resistance
10
30
K
T
A
= 25
°
C
C
IA
Analog Input capacitance
10
pF
T
A
= 25
°
C
VSS
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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