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參數資料
| 型號： | 1180026-003 |
| 廠商： | CTS CORP |
| 元件分類： | OCXO, clock |
| 英文描述： | OCXO, CLOCK, 20 MHz, HCMOS OUTPUT |
| 封裝： | ROHS COMPLIANT PACKAGE-5 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 144K |
| 代理商： | 1180026-003 |
1180026-XXX
20.000 MHz OCXO
Stratum 3E
CTS 171 Covington Dr. Bloomingdale, IL 60108 800-757-6686 www.ctscorp.com
REVISION X4
Page 1 of 4
Electrical Characteristics
Parameter
Sym
Conditions
Min
Typical
Max
Unit
Power Requirements
Power Supply
Vcc
± 5%
3.135
4.75
3.30
5.0
3.465
5.25
Vdc
Turn-On Power
Pmax
Vcc = Max. Std. Load
3.5
4.0
W
Steady State Power
Pss
Vcc = Max Std. Load @ +25
°C
1.5
W
Start-Up Time
Tsu
To 90% Amplitude
50
mSec
Warm-Up Time
Twu
To meet full spec @ +25
°C
15
minutes
Frequency Stabilities
Center Frequency
fnom
20.000
MHz
Initial Tolerance
fcal
Ta = +25
°C (At time of Shipment)
± 0.3
± 0.5
ppm
Frequency vs. Temperature
f/Temp
Operating Temperature
± 6
± 8
ppb
Frequency vs. Voltage
f/Vcc
Vcc
± 5%
± 1
ppb
Frequency vs Time (Aging)
f/Time
per Day
20 years
± 1
± 1.5
ppb
ppm
24 Hour Holdover Stability
f/24Hr
Inclusive of Temperature, Supply
Variation and 24 hours Aging
± 8
± 10
ppb
Total Free-Running
Accuracy
f/Life
All Conditions for 20 years
(Reference to fnom)
± 2.1
ppm
Waveform: HCMOS Output
Symmetry
Sym
@ 50% Level
40
50
60
%
Amplitude
Vo
Logic “1”
Logic “0”
0.9Vcc
0.1Vcc
V
Rise/Fall Times
tr, tf
20% to 80%
4
7
nSec
Load
RL
Output to Ground
10K
// 15pF
Sub-Harmonics
-25
dBc
Phase Noise
Offset = 1 Hz
-70
-60
dBc/Hz
10 Hz
-103
-100
dBc/Hz
100 Hz
-130
-125
dBc/Hz
1 KHz
-140
-130
dBc/Hz
10 KHz
-142
-135
dBc/Hz
1
See Dash Number Table for Voltage and Operating Temperature
Frequency Stability to Stratum 3E of GR-1244
Recommended for or use with Zarlink
SONET/SDH System Synchronizer Chip Sets
+3.3Vdc or +5.0Vdc Operation
Precision Low Aging “SC” Cut Crystal
Through-Hole or Surface Mount Configuration
RoHS Compliant
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