CF5021KE-1 データシートの表示（PDF） - Nippon Precision Circuits

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CF5021KE-1

Crystal Oscillator Module ICs

Nippon Precision Circuits  

SM5021 series

TTL

5 V operation: BA, BB, BC, BD series/ LD series

VDD = 4.5 to 5.5 V, VSS = 0 V, Ta = −20 to 80 °C unless otherwise noted.

Parameter

Symbol

Condition

Output rise time

tr2

Output fall time

tf2

Output duty cycle1

Duty

Output disable delay time tPLZ

Output enable delay time tPZL

1. Determined by the lot monitor.

Measurement cct 6, load cct 2, 0.4V to 2.4V, CL = 15 pF

Measurement cct 6, load cct 2, 2.4V to 0.4V, CL = 15 pF

Measurement cct 6, load cct 2,

Ta = 25 °C, VDD = 5 V, CL = 15 pF, f ≤ 70 MHz

Measurement cct 6, load cct 2, Ta = 25 °C, VDD = 5 V, CL = 15 pF

Rating

Unit

min typ max

–

2.5

7

ns

–

2.5

7

ns

45

–

55

%

–

–

100

ns

–

–

100

ns

Current consumption and Output waveform with NPC’s standard crystal

Cb

L Ca R

f (MHz)

30

40

50

60

70

R (Ω)

18.62

20.53

22.17

22.20

25.42

L (mH)

16.24

11.34

7.40

5.05

4.18

Ca (fF)

1.733

1.396

1.370

1.388

1.254

Cb (pF)

5.337

3.989

4.105

4.226

5.170

FUNCTIONAL DESCRIPTION

Standby Function

When INH goes LOW, the oscillator output on Q goes high impedance.

INH

HIGH (or open)

LOW

Q

fO output frequency

High impedance

Oscillator

Normal operation

Normal operation

NIPPON PRECISION CIRCUITS—8

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