CF5002LB datasheet(6/9 Pages) NPC

6 / 9 page

SM5002L series

NIPPON PRECISION CIRCUITS—6

Switching Characteristics

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

Current consumption and Output waveform with NPC’s standard crystal

FUNCTIONAL DESCRIPTION

Standby Function

The oscillator stops when INH goes LOW. When the oscillator stops, the oscillator output on Q goes high

impedance.

Parameter

Symbol

Conditions

Limits

Units

min

typ

max

Output rise time

tr1

Measurement cct 3,

load cct 1,

0.1VDD → 0.9VDD

VDD = 2.7 to 3.6 V,

CL = 15 pF

–24

tr2

VDD = 3.0 to 3.6 V,

CL = 30 pF

–

2.5

Output fall time

tf1

Measurement cct 3,

load cct 1,

0.9VDD → 0.1VDD

VDD = 2.7 to 3.6 V,

CL = 15 pF

–24

tf2

VDD = 3.0 to 3.6 V,

CL = 30 pF

–

2.5

Output duty cycle1

1. Monitored in sample lots.

DUTY

Measurement cct 3,

load cct 1,

Ta = 25 °C,

VDD = 3.0 V

SM5002LAS, SM5002LFS

CF5002LA, CF5002LF

CL = 30 pF, f = 30 MHz

45–55

SM5002LBS, CF5002LB

CL = 30 pF, f = 50 MHz

45–55

SM5002LCS, CF5002LC

CL = 30 pF, f = 70 MHz

45–55

SM5002LDS, SM5002LES

CL = 15 pF, f = 100 MHz

40–60

CF5002LD, CF5002LE

CL = 15 pF, f = 100 MHz

45–55

Output disable delay time2

2. Oscillator stop function is built-in. When INH goes LOW, normal output stops. When INH goes HIGH, normal output is not resumed until after the

oscillator start-up time has elapsed.

tPLZ

Measurement cct 6, Ta = 25 °C, VDD = 2.7 V,

load CL ≤ 15 pF

–

100

Output enable delay time2

tPZL

–

100

INH

Oscillator

HIGH (or open)

fO output frequency

Normal operation

LOW

High impedance

Stopped

f (MHz)

R (

Ω)

L (mH)

Ca (fF)

Cb (pF)

18.62

16.24

1.733

5.337

22.17

7.40

1.370

4.105

25.42

4.18

1.254

5.170

100

16.60

3.56

0.726

5.394

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