參數(shù)資料
型號(hào)： DS1073Z-80
英文描述： 3V EconOscillator/Divider
中文描述： 3V的EconOscillator /分頻器
文件頁(yè)數(shù)： 18/18頁(yè)
文件大?。?/td> 260K
代理商： DS1073Z-80
DS1073
18 of 18
AC ELECTRICAL CHARACTERISTICS
(T
A
= -40°C to +85°C) (V
CC
= 2.7V – 3.6V)
CONDITION
MIN
TYP
V
CC
= 3.15V,
T
A
= 25 C
Over temp and
voltage
-0.5
External clock
Crystal
reference
PARAMETER
Output Frequency
Accuracy
Combined Frequency
Variation
Long Term Stability
SYMBOL
MAX
UNITS
NOTES
f
O
-0.5
0
+0.5
%
f
O’
-2.5%
2.5%
%
f
O”
+0.5
50
%
1
MHz
Maximum Input
Frequency
f
OSCIN
25
MHz
2
Minimum Output
Frequency
f
OUT
29.3
kHz
3
Power-Up Time
t
POR
+
t
STAB
t
STAB
t
STAB
t
PDN
t
PDN
0.1
1
ms
4, 5
Enable OUT from
PDN
↑
Enable OUT0 from
PDN
↑
I/O Hi-Z from
PDN
↓
OUT0 Hi-Z from
PDN
↓
Load Capacitance
(I/O, OUT0)
Output Duty Cycle
I/O
OUT0
Jitter
0.1
0.1
1
1
1
1
ms
ms
ms
ms
5
5, 6
C
L
15
pF
7
40
40
60
60
%
%
J
100
pS
8
NOTES:
1.
Additive to f
O’
.
2.
This is the maximum frequency which can be applied to OSCIN, or the maximum crystal frequency
that can be used. If a crystal is used, it must be operated in fundamental mode.
3.
The values of M, N and the frequency of OSCIN (if used) must be chosen so that this spec is met.
4.
This is the time from when V
CC
is applied until the output starts oscillating.
5.
When the device is initially powered up or restored from the power-down mode, OE should be
asserted (high). Otherwise the start of the t
stab
interval will be delayed until OE goes high. OE can
subsequently be returned to a low level during the t
stab
interval to force out low after the t
stab
interval.
If the external mode is selected, t
stab
will be a function of the OSCIN period, i.e., external clock
frequency. See “Calculated Parameters” to determine the value of t
stab
in this case.
6.
Although OE does not normally affect OUT0 operation, if OE is held low during power-up, the start
of the t
stab
period will be delayed until OE is asserted. If OE remains low, OUT0 will not start.
7.
Operation with higher capacitive loads is possible but may impair output voltage swing and maximum
operation frequency.
8.
Parameter given is a typical max.
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