SM5021 查看數據表（PDF） - Nippon Precision Circuits
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SM5021 Datasheet PDF : 11 Pages
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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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