欢迎访问ic37.com |
会员登录 免费注册
发布采购

CXZ49GFB12000H0PESZZ 参数 Datasheet PDF下载

CXZ49GFB12000H0PESZZ图片预览
型号: CXZ49GFB12000H0PESZZ
PDF下载: 下载PDF文件 查看货源
内容描述: 晶体单元表面贴装型 [Crystal Units Surface Mount Type]
分类和应用: 晶体
文件页数/大小: 27 页 / 1671 K
品牌: KYOCERA AVX [ KYOCERA AVX ]
 浏览型号CXZ49GFB12000H0PESZZ的Datasheet PDF文件第15页浏览型号CXZ49GFB12000H0PESZZ的Datasheet PDF文件第16页浏览型号CXZ49GFB12000H0PESZZ的Datasheet PDF文件第17页浏览型号CXZ49GFB12000H0PESZZ的Datasheet PDF文件第18页浏览型号CXZ49GFB12000H0PESZZ的Datasheet PDF文件第20页浏览型号CXZ49GFB12000H0PESZZ的Datasheet PDF文件第21页浏览型号CXZ49GFB12000H0PESZZ的Datasheet PDF文件第22页浏览型号CXZ49GFB12000H0PESZZ的Datasheet PDF文件第23页  
Handling Notes  
For Proper Use of Crystal Units  
1. Characteristics of crystal units  
The thickness of crystal vibrator of the AT cut crystal unit as described in the previous page differs depending on the  
overtone mode.  
(1) Relationship between thickness of crystal blank and oscillation frequency  
Cut angle/mode  
overtone  
Frequency range  
(MHz)  
Formula of thickness  
of crystal blank  
AT/Fundamental mode  
AT/3rd O. T  
3.5 to 33  
33 to 100  
100 to 150  
150 to 200  
1.67/f  
5.01/f  
AT/5th O. T  
8.35/f  
AT/7th O. T  
11.69/f  
f : Series resonance frequency (MHz)  
In case of calculating the thickness of AT-cut 16MHz  
t=1.67/16=0.104(mm)  
(2) Examples of specifications for frequency-temperature characteristics  
The frequency-temperature characteristics of the AT cut crystal unit are tertiary curves.  
The diagram below shows examples of the tertiary curves that pass temperature range and frequency deviation specifications.  
The range enclosed by the smaller rectangular satisfies the following specification:  
±1010-6 (-10 to 60: 25°C)  
The range enclosed by the larger rectangular satisfies the following specification:  
±5010-6 (-20 to 70: 25°C)  
Temperature (°C)  
Ð70  
Ð50  
Ð30  
Ð10  
10  
30  
50  
70  
90  
110  
70  
60  
50  
40  
30  
20  
10  
0
Ð10  
Ð20  
Ð30  
Ð40  
Ð50  
Ð60  
Ð70  
* These are examples. Required frequency-temperature specifications are determined through  
individual consultations.  
(3) Equivalent electric circuit and equivalent constant of crystal unit  
The following equivalent constants are used near the resonance frequency.  
L1 : Motional inductance in the equivalent electric circuit  
L1  
C1  
C0  
R1  
C1 : Motional capacitance in the equivalent electric circuit  
R : Motional resistance in the equivalent electric circuit  
C0 : Parallel capacitance in the equivalent electric circuit  
Equivalent electric circuit of a quarts crystal unit  
- 52 -