參數(shù)資料
型號(hào): VCC4-B3E-50M000
廠商: VECTRON INTERNATIONAL
元件分類(lèi): XO, clock
英文描述: 1.8, 2.5, 3.3, 5.0 volt CMOS Oscillator
中文描述: CRYSTAL OSCILLATOR, CLOCK, 50 MHz, CMOS OUTPUT
封裝: ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, SMD, 4 PIN
文件頁(yè)數(shù): 5/9頁(yè)
文件大小: 158K
代理商: VCC4-B3E-50M000
VCC4 Data sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
Table 4. Electrical Performance, 1.8V option
Parameter
Frequency
Operating Supply Voltage
1
Absolute Maximum Voltage
Supply Current, Output Enabled
< 20 MHz
20.01 to 70 MHz
Supply Current, Out disabled
Output Logic Levels
Output Logic High
2
Output Logic Low
2
Output Logic High Drive
Output Logic Low Drive
Output Logic High Drive
3
Output Logic Low Drive
3
Output Rise/Fall Time
2
< 20.000 MHz
20.01 to 50.00 MHz
50.01 to 70.00 MHz
Duty Cycle
4
(
ordering option
)
Operating temperature (
ordering option
)
Stability
5
(
ordering option)
RMS Jitter, 12kHz to 20 MHz
Period Jitter
RMS
Peak to Peak
Output Enable/Disable
6
Output Enabled
Output Disabled
Internal Enable Pull-Up resistor
6
Start-up time
1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended.
2. Figure 7 defines these parameters. Figure 8 illustrates the operating conditions under which these parameters are tested and
specified.
3. Overtone designs, output frequencies>50MHz.
4. Symmetry is measured defined as On Time/Period.
5. Includes calibration tolerance, operating temperature, supply voltage variations, and shock and vibration (not under operation).
50 and 100 ppm options include aging.
6. Output will be enabled if enable/disable is left open.
Symbol
f
O
V
DD
I
DD
Min
1.544
1.71
-0.5
Typical
1.8
Maximum
75.000
1.89
3.6
5
15
30
0.1*V
DD
Units
MHz
V
V
mA
I
DD
V
OH
V
OL
I
OH
I
OL
I
OH
I
OL
t
R/
t
F
uA
V
V
mA
mA
mA
mA
ns
0.9*V
DD
2.8
2.8
8
8
10
6
3
SYM
45/55
%
°
C
ppm
ps
ps
-10/70 or –40/85
±25, ±50, ±100
0.5
3.0
21
1
1.26
0.5
8
V
1
Mohm
ms
Figure 7. Output Waveform
Figure 8. Typical Output Test Conditions (25
±
5°C)
+
-
+
-
I
C
V
C
3
2
.
1
μ
F
.01
μ
F
15pF
4
1
I
DD
V
DD
V
OH
50%
V
OL
t
F
t
R
Period
On Time
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