CF5037 series

SEIKO NPC CORPORATION —7

2.5V operation

Parameter

Symbol

Conditions

*1. Values in parentheses ( ) are provisional only.

Unit

Min

Typ

Max

Output duty cycle

Duty

Measurement cct. 3, measured at

0V differential output (crossing

point), Ta = 25

f

< 350MHz

45

–

55

%

f

≥ 350MHz

40

–

60

%

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

differential output waveform peak-

to-peak

5037A1: f = 120MHz

0.25

–

–

V

5037B

×: f = 180MHz

0.25

–

–

V

5037C

×: f = 250MHz

0.25

–

–

V

5037D

×: f = 400MHz

0.25

–

–

V

5037E

×: f = 600MHz

(0.25)

–

–

V

5037F

×: f = 700MHz

(0.25)

–

–

V

Output rise time

Measurement cct. 3, 20 to 80% differential output swing

–

0.3

0.7

ns

Output fall time

Measurement cct. 3, 80 to 20% differential output swing

–

0.3

0.7

ns

*3. 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.

Measurement cct. 1, Ta = 25

°C

––2

ms

Output disable time

Measurement cct. 1, Ta = 25

°C

–

–

200

ns

DUTY

Timing chart

OUTN

OUT

80%

Hi-Z

OE

20%

OE input waveform

0

80%

20%

0

0

OUT-OUTN