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参数资料
| 型号： | SM561BZ |
| 厂商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 166 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 9/10页 |
| 文件大小： | 75K |
| 代理商： | SM561BZ |
Spread Spectrum Clock Generator
CYPRESS SEMICONDUCTOR CORPORATION 525 Los Coches St.
Document#: 38-07021 Rev. **
05/04/2001
MILPITAS, CA 95035 TEL: 408-263-6300, FAX 408-263-6571
Page 8 of 10
http://www.cypress.com
APPROVED PRODUCT
SM561
Figure 4. Application Schematic
The schematic in figure 2 above demonstrates how the SM561 is configured in a typical application.
This
application is using a 65 MHz reference clock connected to pin 1. Because an external reference clock is used,
pin 8 (Xin/CLK) is left unconnected.
Figure 2 also demonstrates how to properly use the tri-level logic employed in the SM561. Notice that resistors
R2 and R4 create a voltage divider that places VDD/2 on pin 7 to satisfy the voltage requirement for an “M” state.
With this configuration, the SM561 will produce an SSCG clock that is at a center frequency of 65 MHz. Referring
to table 2, range “0, M” at 65 MHz will generate a modulation profile that has a 1.7 % peak to peak spread.
VDD
65 MHz Reference Clock
VDD
R2
20 K
Application Load
R5
22
R4
20 K
SM561
Xin/CLK
1
VDD
2
GND
3
SSCLK
4
SSCC
5
S1
6
S0
7
Xout
8
C5
22 uF.
C6
0.1 uF
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SM561C107KAN360 | 制造商:AVX Corporation 功能描述:- Bulk |
| SM561K | 制造商:CDE 制造商全称:Cornell Dubilier Electronics 功能描述:Ceramic Capacitors |
| SM562-1 | 功能描述:变压器音频和信号 Line Transformer RoHS:否 制造商:Skyworks Solutions, Inc. 频率范围:810 MHz to 960 MHz 初级线圈阻抗: 次级线圈阻抗: 绝缘电压:23 dB 工作温度范围:- 40 C to + 85 C 端接类型:SMD/SMT 尺寸:6 mm L x 4.9 mm W x 1.6 mm H 产品:Splitters and Combiners |
| SM562-1EL | 制造商:BOURNS 制造商全称:Bourns Electronic Solutions 功能描述:ADSL Line Transformers |
| SM562-1L | 功能描述:变压器音频和信号 Magnetics RoHS:否 制造商:Skyworks Solutions, Inc. 频率范围:810 MHz to 960 MHz 初级线圈阻抗: 次级线圈阻抗: 绝缘电压:23 dB 工作温度范围:- 40 C to + 85 C 端接类型:SMD/SMT 尺寸:6 mm L x 4.9 mm W x 1.6 mm H 产品:Splitters and Combiners |
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