Lo w -Fre q u e n c y Du a l Ec o n Os c illa t o r
AC ELECTRICAL CHARACTERISTICS
(V = +2.7V to +5.5V, T = -40°C to +85°C, unless otherwise noted.)
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Master Oscillator Frequency
Nominal Output Frequency
Output Frequency Tolerance
f
1.048
MHz
MOSC
f
OUT0,
0.25
-1.0
1,048,000
+1.0
Hz
f
OUT1
∆f
T
= +25°C, V = 4.1V
%
ppm/V
%
OUT
A
CC
T
A
= +25°C
3300
Voltage Frequency Variation
(Note 3)
∆f
OUT
2.7V to 5.5V, T = +25°C
A
-2.0
-100
45
+2.5
+100
55
Temperature Frequency Variation
Output Duty Cycle
∆f
(Notes 3, 4)
ppm/°C
%
OUT
Power-Up Time
t
(Note 5)
10
ms
PU
Output Rise/Fall Time
t , t
R
C = 15pF (both)
L
20
ns
F
Note 1:
Note 2:
All voltages referenced to ground.
Active supply current combines the standby current with the output current. The output current is defined by
I = (C + 12pF ) x V x f for each output when enabled.
LOAD
CC
OUT
Note 3:
Note 4:
Note 5:
This is the change observed in output frequency due to changes in temperature or voltage.
This parameter is guaranteed by design.
This indicates the time between power-up and the outputs becoming active.
Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(V = +5.0V, T = +25°C, unless otherwise noted.)
CC
A
SUPPLY CURRENT vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. TEMPERATURE
SUPPLY CURRENT vs. OUTPUT LOAD
V
= 15pF, T = +25°C
V = 5.5V, C = 15pF
CC L
(BOTH OUTPUTS LOADED EQUALLY), T = +25°C
1.2
CC
A
A
700
600
500
400
300
200
100
0
700
600
500
400
300
200
100
0
1.0
OUT0 = OUT1 = 1MHz
OUT0 = OUT1 = 1MHz
V
CC
= 5.5V
0.8
0.6
0.4
0.2
0
V
CC
= 4.0V
OUT0 =1MHz,
OUT1 = 0.25Hz
OUT0 =1MHz,
OUT1 = 0.25Hz
V
CC
= 2.7V
40
OUT0 = OUT1 = 0.25Hz
OUT0 = OUT1 = 0.25Hz
-40
-15
10
35
60
85
2.7
3.4
4.1
4.8
5.5
0
10
20
C (pF)
30
50
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
L
_____________________________________________________________________
3
DALLAS [ DALLAS SEMICONDUCTOR ]
