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零件编号 | CF5021AC-1 | ||
描述 | Crystal Oscillator Module ICs | ||
制造商 | Nippon Precision Circuits Inc | ||
LOGO | |||
1 Page
NIPPON PRECISION CIRCUITS INC.
SM5021 series
Crystal Oscillator Module ICs
OVERVIEW
The SM5021 series are crystal oscillator module ICs
fabricated in NPC’s Molybdenum-gate CMOS, that
incorporate high-frequency, low current consump-
tion oscillator and output buffer circuits. Highly
accurate thin-film feedback resistors and high-fre-
quency capacitors are built-in, eliminating the need
for external components to make a stable 3rd-har-
monic oscillator.
FEATURES
s 3rd overtone oscillation
s Capacitors CG, CD built-in
s Inverter amplifier feedback resistor built-in
(A×, B× series)
s TTL input level
s 4 mA (VDD = 2.7 V) drive capability
8 mA (VDD = 4.5 V) drive capability
SERIES CONFIGURATION
s Output three-state function
s 2.7 to 5.5 V supply voltage (A×, K× series)
4.5 to 5.5 V supply voltage (B×, L× series)
s Oscillator frequency output
s 6-pin SOT (SM5021××H)
s Chip form (CF5021××)
Version1
Supply voltage
Chip SOT
Recommended
operating frequency
range (MHz)
3V 5V
Built-in
capacitance
(pF)
CG CD
gm Rf Output Output Standby output
ratio (kΩ) frequency level
state
SM5021AAH 4.5 to 5.5 4.5 to 5.5
×
22 to 30 8
15
1
6.0
fo
CMOS High impedance
SM5021ABH 2.7 to 5.5 2.7 to 5.5 22 to 30 30 to 43 8 15 1 3.3 fo CMOS High impedance
SM5021ACH 2.7 to 5.5 2.7 to 5.5 30 to 40 43 to 55 8 15 2 3.9 fo CMOS High impedance
SM5021ADH 2.7 to 5.5 2.7 to 5.5 40 to 50 55 to 70 8 15 3 2.7 fo CMOS High impedance
SM5021AEH 2.7 to 3.6
×
50 to 70
×
8 12 4 2.7
fo CMOS High impedance
SM5021BAH 4.5 to 5.5 4.5 to 5.5
×
22 to 30 8
15
1
6.0
fo
TTL High impedance
SM5021BBH 4.5 to 5.5 4.5 to 5.5
×
30 to 43 8
15
1
3.3
fo
TTL High impedance
SM5021BCH 4.5 to 5.5 4.5 to 5.5
×
43 to 55 8
15
2
3.9
fo
TTL High impedance
SM5021BDH 4.5 to 5.5 4.5 to 5.5
×
55 to 70 8
15
3
2.7
fo
TTL High impedance
SM5021KDH 2.7 to 5.5 2.7 to 5.5 22 to 50 22 to 70 8 15 3
–
fo CMOS High impedance
SM5021KEH 2.7 to 3.6 2.7 to 3.6 50 to 70
×
8 12 4
–
fo CMOS High impedance
SM5021LDH 4.5 to 5.5 4.5 to 5.5
×
22 to 70 8
15
3
–
fo
TTL High impedance
1. Chip form devices have designation CF5021××.
ORDERING INFORMATION
Devicez
SM5021××H
CF5021××–2
Package
6-pin SOT
Chip form
NIPPON PRECISION CIRCUITS—1
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
Output fall time
Output duty cycle1
tr2
tf2
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
min typ max
– 2.5 7
– 2.5 7
45 – 55
– – 100
– – 100
Unit
ns
ns
%
ns
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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页数 | 11 页 | ||
下载 | [ CF5021AC-1.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
CF5021AC-1 | Crystal Oscillator Module ICs | Nippon Precision Circuits Inc |
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