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DS1099U Datasheet(PDF) 3 Page - Dallas Semiconductor

Part # DS1099U
Description  Low-Frequency Dual EconOscillator
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1099U Datasheet(HTML) 3 Page - Dallas Semiconductor

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Low-Frequency Dual EconOscillator
_____________________________________________________________________
3
Note 1:
All voltages referenced to ground.
Note 2:
Active supply current combines the standby current with the output current. The output current is defined by
I = (CLOAD + 12pF ) x VCC x fOUT for each output when enabled.
Note 3:
This is the change observed in output frequency due to changes in temperature or voltage.
Note 4:
This parameter is guaranteed by design.
Note 5:
This indicates the time between power-up and the outputs becoming active.
AC ELECTRICAL CHARACTERISTICS
(VCC = +2.7V to +5.5V, TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Master Oscillator Frequency
fMOSC
1.048
MHz
Nominal Output Frequency
fOUT0,
fOUT1
0.25
1,048,000
Hz
Output Frequency Tolerance
∆fOUT
TA = +25°C, VCC = 4.1V
-1.0
+1.0
%
TA = +25°C
3300
ppm/V
Voltage Frequency Variation
(Note 3)
∆fOUT
2.7V to 5.5V, TA = +25°C
-2.0
+2.5
%
Temperature Frequency Variation
∆fOUT
(Notes 3, 4)
-100
+100
ppm/°C
Output Duty Cycle
45
55
%
Power-Up Time
tPU
(Note 5)
10
ms
Output Rise/Fall Time
tR, tF
CL = 15pF (both)
20
ns
Typical Operating Characteristics
(VCC = +5.0V, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
VCC = 15pF, TA = +25
°C
SUPPLY VOLTAGE (V)
4.8
4.1
3.4
100
200
300
400
500
600
700
0
2.7
5.5
OUT0 = OUT1 = 1MHz
OUT0 = OUT1 = 0.25Hz
OUT0 =1MHz,
OUT1 = 0.25Hz
SUPPLY CURRENT vs. TEMPERATURE
VCC = 5.5V, CL = 15pF
TEMPERATURE (
°C)
60
35
10
-15
100
200
300
400
500
600
700
0
-40
85
OUT0 = OUT1 = 1MHz
OUT0 = OUT1 = 0.25Hz
OUT0 =1MHz,
OUT1 = 0.25Hz
SUPPLY CURRENT vs. OUTPUT LOAD
(BOTH OUTPUTS LOADED EQUALLY), TA = +25
°C
CL (pF)
40
30
20
10
0.2
0.4
0.6
0.8
1.0
1.2
0
050
VCC = 5.5V
VCC = 4.0V
VCC = 2.7V


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