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| 型號： | CRYSTAL |
| 英文描述： | Crystal Oscillators (73k) |
| 中文描述： | 晶體振蕩器（73K號） |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 73K |
| 代理商： | CRYSTAL |
1
www.semtech.com
HIGH-PERFORMANCE PRODUCTS
Revision 1/ November 27, 2001
AN1007
Crystal Oscillators
Figure 1: Overtone Crystal Oscillator
VCC
VEE
Y1
C2
L1
C1
20pF
R1
510
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50
C3
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SK10/100EL16B
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22
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+
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J2
C4
3
Voltage Controlled and Overtone Crystal Oscillators
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Table 1
Crystal oscillators are used to provide reference fre-
quency clocks for applications such as SONET, Gi-
gabit Ethernet, or fiber channel. Crystal oscillator
manufacturers can design oscillators with accurate
signal waveforms of ±10 ppm or better of the refer-
ence frequency. In this application note only ex-
amples of overtone and voltage controlled crystal
oscillators are provided in figures 1, 2, 3, and 4,
respectively.
These reference clocks can also be obtained with
a PLL based IC devices. Some of the most popular
reference frequencies are 155.52 MHz (OC-3) and
622.08 MHz (OC-12) which can be obtained using
Semtech’s PLL based devices mentioned in Table
1.
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PDF描述 |
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| CS-1009XD8 | Voltage Reference |
| CS-1009XZ | Voltage Reference |
| CS-101A | |
| CS-102 | |
| CS-102-1 | |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CRYSTAL 400 | 制造商:Henkel Corporation / Multicore 功能描述: |
| CRZ0505NC | 制造商:TDK 功能描述:Conv DC-DC Single Step Down 4.5V to 5.5V 5-Pin DIP |
| CRZ0512NC | 制造商:TDK CORPORATION OF AMERICA 功能描述:Conv DC-DC Single Step Down 4.5V to 5.5V 5-Pin DIP |
| CRZ0512PC | 制造商:TDK 功能描述:Conv DC-DC Single Step Up 4.5V to 5.5V 5-Pin DIP |
| CRZ0515NC | 制造商:TDK 功能描述:Conv DC-DC Single Step Down 4.5V to 5.5V 5-Pin DIP |
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