Rainbow-electronics DS1087L Manuel d'utilisateur télécharger pdf (Page 3)

DS1087L

3.3V Spread-Spectrum EconOscillator

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MASTER OSCILLATOR CHARACTERISTICS

= 2.7V to 3.6V, T

= -40°C to +85°C.)

PARAMETER

SYMBOL

CONDITION

MIN TYP MAX

UNITS

Master Oscillator Range

Available

33.3 66.6

MHz

Master Oscillator Frequency

Tolerance

∆

= 3.3V, T

= +25°C (Note 2)

-0.5 +0.5

Voltage Frequency

Variation

∆

Over voltage range, T

= +25°C (Note 3)

-0.75 +0.75

Temperature Frequency Variation

∆

0°C to +70°C, V

= 3.3V (Note 4)

-0.5 +0.5

Temperature Frequency Variation

∆

-40°C to +85°C, V

= 3.3V (Note 4)

-1.5 +0.5

Prescaler bit J0 = 1 (Note 5) 2

Dither Frequency Range

Prescaler bit J0 = 0 (Note 5) 4

Dither Rate

/ 2048

AC ELECTRICAL CHARACTERISTICS

= 2.7V to 3.6V, T

= -40°C to +85°C.)

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

Frequency Stable After

PRESCALER Change

period

Power-Up Time

POR

STAB

(Note 6) 0.1 0.5 ms

Enable of OUT After Exiting

Power-Down Mode

STAB

500 µs

OUT Disabled After Entering

Power-Down Mode

PDN

1ms

Load Capacitance C

(Note 7) 15 50 pF

Output Duty Cycle (OUT) T

= +25°C 45 55 %

1 2 3 4 5 6 7 8 ... 11 12

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Rainbow-electronics DS1087L Manuel d'utilisateur Page 3

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