超低相位噪声精密超临界切割的微型14x21x7.5毫米贴片封装的OCXO

其实如今随着电子产品性能的提升以及体积小型化等优化动作,现在的电子产品对石英晶振等频率控制元件的性能需求也越来越高;不知诸位有没有发现,近两年各大晶振厂家正在疯狂的研发晶振生产技术,纷纷推出一系列高性能的晶振产品,比如去年KDS晶振就推出了一款号称是业内最小的1008差分晶振;今年年初,NDK晶振也出产了带有低相噪性能的温补晶振等等,这样的事情在晶振行业中每天都在发生着,这就是当今晶振行业的一个详情.并且上个月NEL晶振又出产了一款超低相位噪声精密超临界切割的微型14x21x7.5毫米贴片封装的OCXO(恒温晶振).

该有源晶振的特征如下:

①切割水晶

②超低相位噪声

③正弦波+15 dBm输出

④极小的超薄包装

该石英晶体振荡器的应用范围如下:

①使用仪器

②雷达

③高端合成器

④电信系统

⑤数据通信

该SMD晶振的部分参数规格如下:

Parameter	Symb	Condition	Min	Typ	Max	Unit	Note
*Absolute Maximum Ratings*
Input Break Down Voltage	Vcc		-0.5		6.5	V	Vcc option 0
Storage temper.	Ts		-55		85	°C
Control Voltage	Vc		-1		10.5	V
*Electrical (1)*
Frequency	F		80		120	MHz		All parameters for 100.000 MHz
Frequency stability	DF/F	vs. Temp.		±50		ppb	See table below Note 2
		vs. Supply			2	ppb/5% change
		Vs. load			2	ppb/5% change
Aging		per day per first year 10 years		5E-9 5E-7	2.0	ppm	After 30 days of continuous operation
Allan Deviation		.01s to 1s		5E-11
SSB Phase Noise at 100.000 MHz	£(Δf)	10 Hz 100 Hz 1 KHz 10 KHz 100 KHz		-95	-125 -158 -170 -178	dBc/Hz	Grade “L”
		10 Hz 100 Hz 1 KHz 10 KHz 100 KHz		-100	-130 -160 -172 -178		Grade “P”
		10 Hz 100 Hz 1 KHz 10 KHz 100 KHz		-105	-135 -162 -175 -180		Grade “U”, Available with slope option “L”
Retrace		After 30 minutes		±20		ppb
G-sensitivity		worst direction			±0.5	ppb/G
Supply Voltage		5V±5%	4.75	5.0	5.25	V	Option “0”
Power consumption	P	steady state, 25°C steady state, -40°C start-up		1.0 2.5 3.0	1.2 3.5	W	Still air
Spectral Purity		Output power Subharmonics Spurious Harmonics	12	15 none -35	-80 -30	dBm dBc	Non-supply related
Load	50 Ohm (Internally AC-coupled)
Output Waveform		Sine-wave
Control voltage	Vc		0 0		10.0 4.5	V	Slope option “L” Slope option “P”
Input Impedance	Zin	At Vc Pin	10			K ohm
Pull range		from nominal F		±3.0		ppm
Absolute pull range	APR		±0.5			ppm
Deviation slope		Monotonic, posit		0.7 1.3		ppm/V	Slope option “L” Slope option “P”
Linearity			±10%
Reference Voltage	Vref			N/A 4.5		V	Slope option “L” Slope option “P”
Setability	Vc0	@25°C, Fnom.	4.0 1.75	5.0 2.25	6.0 2.75	V	Slope option “L”, no bias Slope option “P”
Modulation Bandwidth	Fm		DC		1	KHz