UM-1, UM-5, UM-4
6
64.6
QUARTZ CRYSTALS
FEATURES
0
12.8
• Cost effective
• Excellent aging
• Wide frequency range
• Low profile
• Excellent reliability
• Tape and Reel (1,000 pcs)
ECS’s UM 1,5,4 quartz crystals are ideal for use in
compact communication equipment.
PART NUMBERING GUIDE
“EXAMPLE”
ECS
–
FREQUENCY (16.0000 MHz)
160
–
LOAD CAPACITANCE*
20
–
PACKAGE TYPE**
22
* Load capacitance (xx=xx pF, S= series resonance), ** Package Type examples (22 = UM-1, 21= UM-5, 25 = UM-4)
Note: See Product Selection Guide for additional options.
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PARAMETERS
FUNDAMENTAL
3RD OVERTONE
FREQUENCY TOLERANCE (@ +25˚C)
FREQUENCY-TEMPERATURE TOLERANCE (@ +25˚C)
OPERATING TEMPERATURE RANGE
T
OPR
STORAGE TEMPERATURE RANGE
T
STG
LOAD CAPACITANCE
(C
L)
SHUNT CAPACITANCE
(C
0)
DRIVE LEVEL
(D
L)
CRYSTAL CUT
FREQUENCY RANGE
UM-1
10.000 ~ 30.000 MHz
25.000 ~ 90.000 MHz
UM-5
30.000 ~ 90.000 MHz
See Table 1
See Table 2
See Table 2
-40 ~ +90˚C
10pF – Series (Customer Specified)
7 pF max.
500 µW max.
AT-cut
UM-4
TABLE 1 FREQUENCY TOLERANCE
(@ +25˚C)
±10
q
Tolerance (x 10
-6
)
±15
±20
±30
q
r
r
±50
r
q
recommended
r
available
TABLE 2 FREQUENCY-TEMPERATURE TOLERANCE
(@ +25˚C)
FREQUENCY
0 ~ +50˚C
-10 ~ +60˚C
-20 ~ +70˚C
-30 ~ +75˚C
-30 ~ +80˚C
-35 ~ +80˚C
-40 ~ +85˚C
±3.0
r
±5.0
r
r
Tolerance (x 10
-6
)
±7.5
±10
±15
r
r
q
r
r
r
r
r
r
r
±20
±30
3.75
±
0.2
ø 0.35
±
0.05
8.0 Max.
12 Min.
3.75
±
0.2
ø 0.35
±
0.05
r
r
r
r
r
r
q
r
r
7.8 Max.
3.1 Max.
7.8 Max.
3.1 Max.
Figure 1) UM-1 Crystal Unit
Side and Bottom view
Figure 2) UM-5 Crystal Unit
Side and Bottom view
TABLE 3 EQUIVALENT SERIES RESISTANCE / MODE OF OSCILLATION
NOMINAL
FREQUENCY (MHz)
10
15
25
30
~
~
~
~
15
30
30
90
MODE
FUNDAMENTAL
FUNDAMENTAL
3rd
3rd
UM-1
40
25
50
45
max.
max.
max.
max.
UM-5, UM-4
50
30
60
60
max.
max.
max.
max.
4.7 Max.
ESR (Ω)
18 Min.
7.8 Max.
3.1 Max.
3.75
±
0.2
ø 0.35
±
0.05
Figure 3) UM-4 Crystal Unit
Side and Bottom view
ECS, INC. INTERNATIONAL
1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
CRYSTALS
8
CRYSTALS
18 Min.
5.8 Max.
12
00
0
PACKAGE DIMENSIONS (mm)
模拟与混合信号
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