Low-Frequency, Spread-Spectrum

EconOscillator

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3

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Internal Master Oscillator

Frequency

4.0

8.0

MHz

Output Frequency Tolerance

-11.5

+11.5

%

Ω,

-0.3

+0.3

Voltage Frequency Variation

Ω,

-1.25

+1.25

%

Temperature Frequency Variation

(Notes 2, 3, 4)

-2.5

+2.5

%

J0 = GND, J1 = GND

0

2

4

Peak-to-Peak Dither (3

σ)

(Note 5)

8

%

Power-Up Time

(Note 6)

0.1

0.5

ms

Load Capacitance

(Note 7)

30

pF

45

55

Output Duty Cycle

<4MHz (Note 4)

50

%

Output Rise/Fall Time

20

ns

AC ELECTRICAL CHARACTERISTICS

Note 1:

All voltages referenced to ground.

Note 2:

This is the change observed in output frequency due to changes in temperature or voltage.

Note 3:

See the Typical Operating Characteristics section.

Note 4:

Parameter is guaranteed by design and is not production tested.

Note 5:

This is a percentage of the output period. Parameter is characterized but not production tested. This can be varied from

0% to 8%.

Note 6:

This indicates the time between power-up and the outputs becoming active. An on-chip delay is intentionally introduced to

output frequency.

Note 7:

Output voltage swings can be impaired at high frequencies combined with high output loading.