DS1086 Spread-Spectrum EconOscillator

4

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AC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

Frequency Stable After Prescaler

Change

1

Period

Frequency Stable After DAC or

Offset Change

(Note 9)

0.2

1

ms

Power-Up Time

0.1

0.5

ms

Enable of OUT After Exiting

Power-Down Mode

500

µs

OUT High-Z After Entering

Power-Down Mode

0.1

ms

Load Capacitance

(Note 11)

15

50

pF

Output Duty Cycle (OUT)

40

60

%

PDN Rise/Fall Time

1µs

AC ELECTRICAL CHARACTERISTICS: 2-WIRE INTERFACE

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

Fast mode

400

SCL Clock Frequency

Standard mode

(Note 12)

100

kHz

Fast mode

1.3

Bus Free Time Between a STOP

and START Condition

Standard mode

(Note 12)

4.7

µs

Fast mode

0.6

Hold Time (Repeated) START

Condition

Standard mode

(Notes 12, 13)

4.0

µs

Fast mode

1.3

LOW Period of SCL

Standard mode

(Note 12)

4.7

µs

Fast mode

0.6

HIGH Period of SCL

Standard mode

(Note 12)

4.0

µs

Fast mode

0.6

Setup Time for a Repeated

START

Standard mode

(Note 12)

4.7

µs

Fast mode

Data Hold Time

Standard mode

(Notes 12, 14, 15)

0

0.9

µs

Fast mode

100

Data Setup Time

Standard mode

(Note 12)

250

ns

Fast mode

300

Rise Time of Both SDA and SCL

Signals

Standard mode

(Note 16)

1000

ns

Fast mode

300

Fall Time of Both SDA and SCL

Signals

Standard mode

(Note 16)

1000

ns