參數(shù)資料
型號: VCC4-A3B-50M000
廠商: VECTRON INTERNATIONAL
元件分類: 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
文件頁數(shù): 4/9頁
文件大小: 158K
代理商: VCC4-A3B-50M000
VCC4 Data sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
Table 3. Electrical Performance, 2.5V option
Parameter
Frequency
Operating Supply Voltage
1
Absolute Maximum Voltage
Supply Current, Output Enabled
< 1.5 MHz
1.500 to 20 MHz
20.01 to 50 MHz
50.01 to 75 MHz
75.01 to 100 MHz
100.01 to 125 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 125.00 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 5 defines these parameters. Figure 6 illustrates the operating conditions under which these parameters are tested and
specified.
3. Overtone designs, output frequencies>35MHz.
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 100ppm options include aging.
6. Output will be enabled if enable/disable is left open.
Symbol
f
O
V
DD
I
DD
Min
1.544
2.25
-0.5
Typical
2.5
Maximum
125.000
2.75
5.0
5.0
7.0
15.0
20.0
26.0
36.0
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
4
4
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
1.75
0.5
8
V
100
Kohm
ms
Figure 5. Output Waveform
Figure 6. 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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