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參數(shù)資料
| 型號(hào)： | FS787BZ |
| 英文描述： | MISCELLANEOUS CLOCK GENERATOR|SOP|8PIN|PLASTIC |
| 中文描述： | 雜項(xiàng)時(shí)鐘發(fā)生器|?？苵 8引腳|塑料 |
| 文件頁(yè)數(shù)： | 11/13頁(yè) |
| 文件大小： | 94K |
| 代理商： | FS787BZ |
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Low EMI Spread Spectrum Clock
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress
Document#: 38-07031 Rev. **
05/04/2001
Page 11 of 13
APPROVED
PRODUCT
FS786/787
Application Notes and Schematic
The schematic at the right is configured for the following parameters;
Package selected = FS786
By selecting the FS786 or the FS787 and selecting D0 low or high, any input frequency from 6 to 82 MHz can be
modulated. In addition to providing a modulated Low EMI clock, the FS786 and FS787 also provide a non-
modulated clock which is a buffered copy of the reference oscillator.
VDD
**
** Occasionally, C8 is used to
create a second pole for this loop
filter. Refer to Loop Filter Selection
table.
Mount loop filter components as
close to LF pin as possible.
.
Crystal is a 20 MHz, Fundamental,
with 18 pF load capacitance.
If Crystal load capacitance is different
than 18 pF, C1 and C2 must be
re-calculated.
For third overtone crystals, a parallel or
series resonant trap is required.
Bandwidth is determined by the
value of the Loop Filter components
connected to pin 4.
R6
C2
0.1 uF
C4
27 pF
C5
27 pF
Y1
20 MHz
C8
C7
FS786
Xin
1
Xout
2
D0
3
LF
4
VSS
5
REFOUT
6
FSOUT
7
VDD
8
VDD
REFOUT
FSOUT
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FS78-8-5K2 | 功能描述:端子 Insulated Ferrules on Reels, single wire RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線規(guī):26-18 接線柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點(diǎn)電鍍:Tin over Nickel 觸點(diǎn)材料:Beryllium Copper, Phosphor Bronze 端接類型:Crimp |
| FS78-8-DSL2 | 功能描述:端子 16 AWG RED SOLD PER 50 PC STRIP RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線規(guī):26-18 接線柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點(diǎn)電鍍:Tin over Nickel 觸點(diǎn)材料:Beryllium Copper, Phosphor Bronze 端接類型:Crimp |
| FS791 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Low EMI Spectrum Spread Clock |
| FS791/92/94 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Clocks and Buffers |
| FS792 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Low EMI Spectrum Spread Clock |
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