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Rainbow-electronics DS1099 User Manual Page 3

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DS1099
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 = (C
LOAD
+ 12pF ) x V
CC
x f
OUT
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
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Master Oscillator Frequency f
MOSC
1.048
MHz
Nominal Output Frequency
f
OUT0,
f
OUT1
0.25 1,048,000
Hz
Output Frequency Tolerance ∆f
OUT
T
A
= +25°C, V
CC
= 4.1V
-1.0 +1.0
%
T
A
= +25°C
3300
ppm/V
Voltage Frequency Variation
(Note 3)
∆f
OUT
2.7V to 5.5V, T
A
= +25°C
-2.0 +2.5
%
∆f
OUT
(Notes 3, 4)
-100 +100
ppm/°C
Output Duty Cycle 45 55 %
Power-Up Time t
PU
(Note 5) 10 ms
Output Rise/Fall Time t
R
, t
F
C
L
= 15pF (both) 20 ns
Typical Operating Characteristics
(V
CC
= +5.0V, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
V
CC
= 15pF, T
A
= +25°C
DS1099 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
4.84.13.4
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
V
CC
= 5.5V, C
L
= 15pF
DS1099 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
603510-15
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), T
A
= +25°C
DS1099 toc03
C
L
(pF)
SUPPLY CURRENT (mA)
40302010
0.2
0.4
0.6
0.8
1.0
1.2
0
050
V
CC
= 5.5V
V
CC
= 4.0V
V
CC
= 2.7V
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