Rainbow Electronics DS1099 - Manual (Page 3)

DS1099
Low-Frequency Dual EconOscillator
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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 %
Temperature Frequency Variation ∆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 (
µ
A)
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
V CC = 5.5V, C L = 15pF
DS1099 toc02
TEMPERATURE ( °C)
SUPPLY CURRENT (
µ
A)
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), T A = +25 °C
DS1099 toc03
C L (pF)
SUPPLY CURRENT (mA)
40 30 20 10
0.2
0.4
0.6
0.8
1.0
1.2
0
0 50
V CC = 5.5V
V CC = 4.0V
V CC = 2.7V