CF5034AA 데이터 시트보기 (PDF) - Nippon Precision Circuits

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CF5034AA

350MHz PECL-output Oscillator ICs

Nippon Precision Circuits  

CF5034 series

AC Characteristics

Recommended operating conditions unless otherwise noted.

Parameter

Symbol

Conditions

Rating

Unit

Min

Typ

Max

Output duty cycle 1

Output duty cycle 2

Output swing1

Duty 1

Measurement cct. 3,

measured at output crossing point,

Ta = 25°C, VCC = 3.3V

45

–

55

%

Duty 2

Measurement cct. 3,

measured at 50% output swing,

Ta = 25°C, VCC = 3.3V

45

–

55

%

VOpp

Measurement cct. 1, Ta = TOPR, f = 350MHz,

Peak to peak of output waveform

0.4

–

–

V

Output rise time

tr

Measurement cct. 3,

20 to 80% output swing

–

0.5

1

ns

Output fall time

Output enable time2

Output disable time2

tf

Measurement cct. 3,

80 to 20% output swing

tOE Measurement cct. 1, Ta = 25°C

tOD Measurement cct. 1, Ta = 25°C

–

0.5

1

ns

–

–

200

ns

–

–

200

ns

1. The said values are measured by using the NPC standard jig.

2. The built-in oscillator stop function does not operate with normal output immediately when OE goes HIGH. Instead, normal output occurs after the

oscillator startup time has elapsed.

tr

tf

OUTN

OUT

tW

tPER

DUTY = tW/tPER 100

OE

OE input waveform tr = tf 10ns

80%

20%

tOD

tOE

Timing chart

VOpp

VDD

VOH

VOL

VDD – 2V

VSS

VDD

VIH

VIL

VSS

NIPPON PRECISION CIRCUITS INC.—4

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