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YXC厂家直销 HC-49SMD 8MHZ 20PF石英金属贴片晶振无源晶体谐振器

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HC-49SMD 贴片2P
请点击您需要的参数一起加到购物车,找不到您需要的请联系客服
标准频率 负载电容 频率偏差 点击购买
3.6864MHZ 20PF 20PPM rel="nofollow" Buy
4MHZ 20PF 20PPM rel="nofollow" Buy
6MHZ 20PF 20PPM rel="nofollow" Buy
7.3728MHZ 20PF 20PPM rel="nofollow" Buy
8MHZ 20PF 20PPM rel="nofollow" Buy
10MHZ 20PF 20PPM rel="nofollow" Buy
11.0592MHZ 20PF 20PPM rel="nofollow" Buy
12MHZ 20PF 20PPM rel="nofollow" Buy
13.560MHZ 20PF 20PPM rel="nofollow" Buy
16.384MHZ 20PF 20PPM rel="nofollow" Buy
20MHZ 20PF 20PPM rel="nofollow" Buy
22.1184MHZ 20PF 20PPM rel="nofollow" Buy
24.576MHZ 20PF 20PPM rel="nofollow" Buy
24MHZ 20PF 20PPM rel="nofollow" Buy
25MHZ 20PF 20PPM rel="nofollow" Buy
26MHZ 20PF 20PPM rel="nofollow" Buy
27.120MHZ 20PF 20PPM rel="nofollow" Buy
27MHZ 20PF 20PPM rel="nofollow" Buy
28.6363MHZ 20PF 20PPM rel="nofollow" Buy
30MHZ 20PF 20PPM rel="nofollow" Buy
32MHZ 20PF 20PPM rel="nofollow" Buy

 

 

 
 
 
如您需要购买同类别的其他系列产品，请点击以下链接
产品型号 产品规格 点击购买
HC-49US 11.5x4.5x3.68mm rel="nofollow" Buy
HC-49SMD 11.4x4.8x3.8mm rel="nofollow" Buy
HC-49UM 11.05x4.65x13.46mm rel="nofollow" Buy
YSX321SL 3225 4P rel="nofollow" Buy
YSX530GA 5032 2P rel="nofollow" Buy
YSX531SL 5032 4P rel="nofollow" Buy
YT-26 2060 2P rel="nofollow" Buy
YT-38 3080 2P rel="nofollow" Buy
R315 D11,F11,TO39 rel="nofollow" Buy
R433 D11,F11,TO39 rel="nofollow" Buy

 

 

 

 



振荡电路不匹配导致晶振不起振？

影响振荡电路的三个指标：频率误差、负性阻抗、激励电平。

频率误差太大，导致实际频率偏移标称频率从而引起晶振不起振

解决办法：选择合适的PPM值的产品。

负性阻抗过大太小都会导致晶振不起振。

解决办法：负性阻抗过大，可以将晶振外接电容Cd和Cg的值调大来降低负性阻抗;负性阻抗太小，则可以将晶振外接电容Cd和Cg的值调小来增大负性阻抗。一般而言，负性阻抗值应满足不少于晶振标称最大阻抗3-5倍。

激励电平过大或者过小也将会导致晶振不起振

解决办法：通过调整电路中的Rd的大小来调节振荡电路对晶振输出的激励电平。


加工定制

是

货号

49SMD

品牌

YXC

型号

HC-49SMD

种类

晶振

标称频率

8

调整频差

20ppm

温度频差

25ppm

总频差

20

负载电容

20

负载谐振电阻

40

激励电平

100

基准温度

-20~70

插入损耗

0

阻带衰减

0

输入阻抗

0

输出阻抗

0