VCC6-QCX(2005) Просмотр технического описания (PDF) - Vectron International
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VCC6-QCX Datasheet PDF : 8 Pages
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VCC6-Q/R Series, 2.5 and 3.3v PECL Crystal Oscillator
Performance Characteristics
Table 1. Electrical Performance
Parameter
Frequency
Supply Voltage1, 3.3V Q option
2.5V R option
Supply Current
Output Logic Levels, 0/70°C
Output Logic High2
Output Logic Low2
Output Logic Levels, -40/85°C
Output Logic High2
Output Logic Low2
Transition Times
Rise Time2
Fall Time2
Symmetry or Duty Cycle3
Operating temperature (ordering option)
Stability (ordering option)4
Jitter, 12kHz to 20MHz5
Symbol
fO
VDD
IDD
Min
10
3.15
2.375
Typical
3.3
2.5
Maximum
270
3.45
2.625
98
Units
MHz
V
mA
VOH VDD-1.025
VOL VDD-1.810
VDD-0.880
V
VDD-1.620
V
VOH VDD-1.085
VOL VDD-1.830
VDD-0.880
V
VDD-1.555
V
tR
tF
SYM
TOP
deltaF/F
600
600
45
50
55
-10/70 or –40/85
±25, ±50 or ±100
0.3
0.7
ps
ps
%
°C
ppm
pS
Cycle to Cycle, rms
4.8
Cycle to Cycle, peak-peak
38
Period Jitter, rms
2.7
Period Jitter, peak-peak
23
Output Enabled6
Output Disabled6
VIH
0.7*VDD
VIL
V
0.3*VDD
V
Output Enable/Disable time
tE/D
200
nS
Enable/Disable Leakage Current
IIL
Output Enable Pull-Up Resistor6
±200
uA
Output Enabled
33
Kohm
Output Disabled
1
Mohm
1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible and terminated to ground.
2. Figure 1 defines these parameters. Figure 2 illustrates the operating conditions under which these parameters are tested and specified.
3. Symmetry is measured defined as On Time/Period.
4. Includes calibration tolerance, operating temperature, supply voltage variations, aging (40 degreesC/10 years) and shock and vibration (not under
operation).
5. Measurements made on a VCC6-QAB-155M520 using an Agilent E5052A for phase noise and LeCroy 8600, 25K samples for jitter.
6. Output will be enabled if Enable/Disable is left open. The pull resistor changes to a higher value, operating in a “power saving mode” when
Enable/Disable is set to a logic 0.
80 %
Vs
20 %
tR
tF
On Time
Period
Figure 1. Output Waveform
Figure 2. Typical Output Test Conditions (25±5°C)
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
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