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

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.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Master Oscillator Frequency

1.048

MHz

Nominal Output Frequency

0.25

1,048,000

Hz

Output Frequency Tolerance

-1.0

+1.0

%

Voltage Frequency Variation

(Note 3)

3300

ppm/V

-2.0

+2.5

%

Temperature Frequency Variation

(Notes 3, 4)

-100

+100

ppm/°C

Output Duty Cycle

45

55

%

Power-Up Time

(Note 5)

10

ms

Output Rise/Fall Time

20

ns

SUPPLYCURRENTvs.OUTPUTLOAD

40

30

20

10

0.2

0.4

0.6

0.8

1.0

1.2

0

0

50

SUPPLY CURRENT vs. TEMPERATURE

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. SUPPLY VOLTAGE

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

Typical Operating Characteristics

AC Electrical Characteristics

DS1099

Low-Frequency Dual EconOscillator

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