富通晶振Stratum 3和Stratum 3E振荡器具有三种频率稳定性规范
建议:
1.М在带宽内允许的最大输入信号功率应小于100mW。
2.阻带中的输入信号幅度限制在5V。
3.滤波器输入(输出)的直流电压不应超过10V。
4.建议在设备和发电机(负载)之间加入耦合电容。
5.SAW滤波器对静电敏感,使用时应采取相应的预防措施。
6.请勿将设备暴露在频率超过5kHz的振动中。不要使用超声波清洗机。
	 
	
		
				 
			
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概述
Stratum 3和Stratum 3E振荡器具有三种频率稳定性规范,即自由运行、保持和漂移,如下所述:
	 
	
		
 
				 
			
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					Active
				 
				
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					24.576MHz
				 
				
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					EPSON
				 
				
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					Active
				 
				
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					SG-210SDB 48.0000ML3
				 
				
					EPSON
				 
				
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					Active
				 
				
					XO (Standard)
				 
				
					48MHz
				 
				
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					SG-210SDB 48.0000ML3
				 
				
					EPSON
				 
				
					SG-210S*B
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					48MHz
				 
				
					±50ppm
				 
			
				 
		
	
					SG7050CCN 6.000000M-HJGA3
				 
				
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自由运行(±4.6ppm/20年Stratum3和3E)
保持时间(Stratum 3为±0.37ppm/24小时,Stratum3E为±0.01ppm/24小时)
漂移(在实验室环境中:Stratum 3为±0.04ppm/24小时,Stratum 3E为±0.001ppm/24小时)
	 
	
		
 
				 
			
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					6MHz
				 
				
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					SG7050CCN 19.660800M-HJGA3
				 
				
					EPSON
				 
				
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					Active
				 
				
					XO (Standard)
				 
				
					19.6608MHz
				 
				
					±50ppm
				 
			
				 
			
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					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					19.6608MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CCN 19.660800M-HJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					19.6608MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-7050CAN 13.560000M-TJGA3
				 
				
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					Active
				 
				
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					SG-7050CAN 13.560000M-TJGA3
				 
				
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					Active
				 
				
					XO (Standard)
				 
				
					13.56MHz
				 
				
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					SG-7050CAN 13.560000M-TJGA3
				 
				
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					Active
				 
				
					XO (Standard)
				 
				
					13.56MHz
				 
				
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					SG7050CAN 10.000000M-TJGA3
				 
				
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					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					10MHz
				 
				
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					SG7050CAN 10.000000M-TJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					10MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CAN 10.000000M-TJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					10MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CAN 16.384000M-TJGA3
				 
				
					EPSON
				 
				
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					Active
				 
				
					XO (Standard)
				 
				
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					SG7050CAN 16.384000M-TJGA3
				 
				
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					Active
				 
				
					XO (Standard)
				 
				
					16.384MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CAN 16.384000M-TJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.384MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CAN 66.000000M-TJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					66MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CAN 66.000000M-TJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					66MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CAN 66.000000M-TJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					66MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CCN 3.276800M-HJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					3.2768MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CCN 3.276800M-HJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					3.2768MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CCN 3.276800M-HJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					3.2768MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CAN 12.000000M-TJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CAN 12.000000M-TJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12MHz
				 
				
					±50ppm
				 
			
				 
			
					SG7050CAN 12.000000M-TJGA3
				 
				
					EPSON
				 
				
					SG7050
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210SDD 62.5000ML3
				 
				
					EPSON
				 
				
					SG-210S*D
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					62.5MHz
				 
				
					±50ppm
				 
			
				 
		
	
					SG-210SDD 62.5000ML3
				 
				
					EPSON
				 
				
					SG-210S*D
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					62.5MHz
				 
				
					±50ppm
				 
			
自由奔跑
任何精密振荡器都可以轻松获得自由运行要求。然而,系统要求的一部分是任何Stratum 3和3E系统必须能够锁定到任何其他Stratum 3或3E系统。进入系统的参考信号可能来自运行中的自由运行系统,该系统可以关闭多达±4.6ppm。进一步明确锁定要求,Stratum 3E系统必须能够锁定到Stratum 3系统。
	 
	
		
 
				 
			
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					62.5MHz
				 
				
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					SG-210SCD 62.5000ML3
				 
				
					EPSON
				 
				
					SG-210S*D
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					62.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210SCD 62.5000ML3
				 
				
					EPSON
				 
				
					SG-210S*D
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					62.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210SCD 62.5000ML3
				 
				
					EPSON
				 
				
					SG-210S*D
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					62.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-310SCF 48.0000MC3
				 
				
					EPSON
				 
				
					SG-310
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					48MHz
				 
				
					±100ppm
				 
			
				 
			
					SG-310SCF 48.0000MC3
				 
				
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					SG-310
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					48MHz
				 
				
					±100ppm
				 
			
				 
			
					SG-310SCF 48.0000MC3
				 
				
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					SG-310
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					48MHz
				 
				
					±100ppm
				 
			
				 
			
					TCO-7086X1A4 75.0000M3
				 
				
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					TCO-708x
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					75MHz
				 
				
					±50ppm
				 
			
				 
			
					TCO-7086X1A4 75.0000M3
				 
				
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					TCO-708x
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					75MHz
				 
				
					±50ppm
				 
			
				 
			
					TCO-7086X1A4 75.0000M3
				 
				
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					TCO-708x
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					75MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 2.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					2MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 19.6608ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					19.6608MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 33.3333ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.3333MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 8.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8MHz
				 
				
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					SG-210STF 28.63636ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					28.63636MHz
				 
				
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					SG-210STF 3.6864ML
				 
				
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					Active
				 
				
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					3.6864MHz
				 
				
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					SG-210STF 2.0480ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					2.048MHz
				 
				
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					SG-210STF 13.5600ML
				 
				
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					Active
				 
				
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					13.56MHz
				 
				
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					SG-210STF 4.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					4MHz
				 
				
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					SG-210STF 24.5760ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					24.576MHz
				 
				
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					SG-210STF 20.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					20MHz
				 
				
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					SG-210STF 27.1200ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					27.12MHz
				 
				
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					SG-210STF 7.3728ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					7.3728MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 4.9152ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					4.9152MHz
				 
				
					±50ppm
				 
			
				 
		
	
					SG-210STF 54.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					54MHz
				 
				
					±50ppm
				 
			
滞留
保持要求被定义为整体条件。这些条件包括老化、温度、电压、负载和初始偏移。初始偏移量是信号丢失时单元锁定到参考信号的接近程度;不是振荡器的初始频率精度。保持要求可分为3个主要部分:初始偏移、温度和漂移。Bellcore建议添加Initialoffset、Temperature和Drift以获得保持要求。他们的建议没有考虑电压变化,但将其包含在漂移计算中。
	 
	
		
  
				 
			
					SG-210STF 1.8432ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					1.8432MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 52.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					52MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 27.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					27MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-211SDE 54.0000MT3
				 
				
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					SG-211S*E
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					54MHz
				 
				
					±15ppm
				 
			
				 
			
					SG-211SDE 54.0000MT3
				 
				
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					SG-211S*E
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					54MHz
				 
				
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					SG-211SDE 54.0000MT3
				 
				
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					SG-211S*E
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					54MHz
				 
				
					±15ppm
				 
			
				 
			
					SG-210STF 32.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					32MHz
				 
				
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					SG-210STF 31.2500ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
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					31.25MHz
				 
				
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					SG-210STF 38.4000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					38.4MHz
				 
				
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					SG-210STF 10.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
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					10MHz
				 
				
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					SG-210STF 6.7800ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
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					6.78MHz
				 
				
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					SG-210STF 72.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					72MHz
				 
				
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					SG-210STF 3.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					3MHz
				 
				
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					SG-210STF 2.4576ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					2.4576MHz
				 
				
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					SG-210STF 25.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					25MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 32.7680ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					32.768MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 9.8304ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					9.8304MHz
				 
				
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					SG-210STF 13.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					13MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 1.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					1MHz
				 
				
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					SG-210STF 6.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					6MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 33.3300ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.33MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 36.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					36MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 3.0720ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					3.072MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 1.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					1.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 1.2288ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					1.2288MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 14.7456ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					14.7456MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 30.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					30MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 3.5795ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					3.5795MHz
				 
				
					±50ppm
				 
			
				 
		
	
					SG-210STF 62.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					62.5MHz
				 
				
					±50ppm
				 
			
漂移
建议的漂移值是最难满足的,但不是要求。温度范围是伪定义的(贝尔核心建议实验室环境中的温度变化为±5°F)。电压变化被包括在内,因为漂移值将包括其他影响以及老化和温度。因为漂移是最严格的规范;振荡器的老化、温度和电压特性是影响该稳定性值的重要因素。通常TCXO晶振不会满足这个值,因为它们通常没有像烤箱振荡器那样线性的频率与温度特性。与Holdover要求一样,系统设计人员具有一定的灵活性:
	 
	
		
  
				 
			
					SG-210STF 33.3000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.3MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 18.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					18MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.3480ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.348MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 33.3330ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.333MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 11.2896ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					11.2896MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 66.6667ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					66.6667MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 1.2000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					1.2MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.6665ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.6665MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 12.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 13.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					13.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 2.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					2.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 4.8000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					4.8MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 5.6448ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					5.6448MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 40.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					40MHz
				 
				
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					SG-210STF 16.6500ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.65MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 8.2500ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8.25MHz
				 
				
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					SG-210STF 3.1250ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
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					3.125MHz
				 
				
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					SG-210STF 75.0000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					75MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 37.4000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					37.4MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 9.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					9MHz
				 
				
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					SG-210STF 16.5000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.5MHz
				 
				
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					SG-210STF 74.1760ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					74.176MHz
				 
				
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					SG-210STF 8.1920ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8.192MHz
				 
				
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					SG-210STF 4.5000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
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					4.5MHz
				 
				
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					SG-210STF 12.0000ML
				 
				
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					SG-210STF
				 
				
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					12MHz
				 
				
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					SG-210STF 14.31818ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					14.31818MHz
				 
				
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					SG-210STF 8.0000MY
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8MHz
				 
				
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					SG-210STF 11.2896MS
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					11.2896MHz
				 
				
					±25ppm
				 
			
				 
			
					SG-210STF 33.3330MW
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.333MHz
				 
				
					±100ppm
				 
			
				 
		
	
					SG-210STF 12.2880MS
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12.288MHz
				 
				
					±25ppm
				 
			
通过选择电源来控制振荡器电压。
指定漂移的温度变化。
	 
	
		
				 
			
					SG-210STF 33.3000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.3MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 18.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					18MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.3480ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.348MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 33.3330ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.333MHz
				 
				
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					SG-210STF 11.2896ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					11.2896MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 66.6667ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					66.6667MHz
				 
				
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					SG-210STF 1.2000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					1.2MHz
				 
				
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					SG-210STF 16.6665ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.6665MHz
				 
				
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					SG-210STF 12.5000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12.5MHz
				 
				
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					SG-210STF 13.5000ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					13.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 2.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					2.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 4.8000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					4.8MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 5.6448ML
				 
				
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					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					5.6448MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 40.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					40MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.6500ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.65MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 8.2500ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8.25MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 3.1250ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					3.125MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 75.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					75MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 37.4000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					37.4MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 9.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					9MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 74.1760ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					74.176MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 8.1920ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8.192MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 4.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					4.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 12.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 14.31818ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					14.31818MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 8.0000MY
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 11.2896MS
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					11.2896MHz
				 
				
					±25ppm
				 
			
				 
			
					SG-210STF 33.3330MW
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.333MHz
				 
				
					±100ppm
				 
			
				 
		
	
					SG-210STF 12.2880MS
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12.288MHz
				 
				
					±25ppm
				 
			
 
结论
系统制造商在指定保持和漂移值的条件方面具有一定的灵活性。由于漂移不是必需的,因此可以在系统规范中忽略它。还可以指定保持的有限温度范围。最终使用系统的购买者应考虑保持和漂移的条件,以确定满足其要求的最佳值。
	 
	
		
				 
			
					SG-210STF 33.3000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.3MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 18.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					18MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.3480ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.348MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 33.3330ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.333MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 11.2896ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					11.2896MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 66.6667ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					66.6667MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 1.2000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					1.2MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.6665ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.6665MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 12.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 13.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					13.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 2.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					2.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 4.8000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					4.8MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 5.6448ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					5.6448MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 40.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					40MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.6500ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.65MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 8.2500ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8.25MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 3.1250ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					3.125MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 75.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					75MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 37.4000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					37.4MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 9.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					9MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 16.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					16.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 74.1760ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					74.176MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 8.1920ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8.192MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 4.5000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					4.5MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 12.0000ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 14.31818ML
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					14.31818MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 8.0000MY
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					8MHz
				 
				
					±50ppm
				 
			
				 
			
					SG-210STF 11.2896MS
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					11.2896MHz
				 
				
					±25ppm
				 
			
				 
			
					SG-210STF 33.3330MW
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					33.333MHz
				 
				
					±100ppm
				 
			
				 
		
	
					SG-210STF 12.2880MS
				 
				
					EPSON
				 
				
					SG-210STF
				 
				
					Active
				 
				
					XO (Standard)
				 
				
					12.288MHz
				 
				
					±25ppm
				 
			
 
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