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參數(shù)資料
| 型號(hào)： | W180 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Peak Reducing EMI Solution |
| 中文描述： | 峰值抑制EMI解決方案 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 122K |
| 代理商： | W180 |
Peak Reducing EMI Solution
W180
Cypress Semiconductor Corporation
3901 North First Street
San Jose
CA 95134
408-943-2600
July 21, 2000, rev. *A
Features
Cypress PREMIS
family offering
Generates an EMI optimized clocking signal at the
output
Selectable output frequency range
Single 1.25% or 3.75% down or center spread output
Integrated loop filter components
Operates with a 3.3V or 5V supply
Low power CMOS design
Available in 8-pin SOIC (Small Outline Integrated
Circuit)
Key Specifications
Supply Voltages: ...........................................V
DD
= 3.3V±5%
or V
DD
= 5V±10%
Frequency Range: .............................. 8 MHz
≤
F
in
≤
28 MHz
Cycle to Cycle Jitter: ....................................... 300 ps (max.)
Selectable Spread Percentage: ....................1.25% or 3.75%
Output Duty Cycle: ............................... 40/60% (worst case)
Output Rise and Fall Time: ..................................5 ns (max.)
Table 1. Modulation Width Selection
SS%
W180-01, 02, 03
Output
W180-51, 52, 53
Output
0
F
in
≥
F
out
≥
F
in
–
1.25%
F
in
+ 0.625%
≥
F
in
≥
–
0.625%
1
F
in
≥
F
out
≥
F
in
–
3.75%
F
in
+ 1.875%
≥
F
in
≥
–1.875%
Table 2. Frequency Range Selection
FS2
FS1
W180 Option#
-01, 51
(MHz)
8
≤
F
IN
≤
10
10
≤
F
IN
≤
15
15
≤
F
IN
≤
18
18
≤
F
IN
≤
28
-02, 52
(MHz)
8
≤
F
IN
≤
10
10
≤
F
IN
≤
15
N/A
-03, 53
(MHz)
0
0
N/A
0
1
N/A
1
0
15
≤
F
IN
≤
18
18
≤
F
IN
≤
28
1
1
N/A
PREMIS is a trademark of Cypress Semiconductor Corporation.
Simplified Block Diagram
Pin Configurations
Spread Spectrum
Output
W180
(EMI suppressed)
3.3V or 5.0V
Oscillator or
Reference Input
Spread Spectrum
Output
W180
(EMI suppressed)
3.3V or 5.0V
XTAL
Input
X1
X2
W
8
7
6
5
1
2
3
4
CLKIN or X1
NC or X2
GND
SS%
SSON#
FS1
VDD
CLKOUT
W
8
7
6
5
1
2
3
4
CLKIN or X1
NC or X2
GND
SS%
FS2
FS1
VDD
CLKOUT
SOIC
W
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W181-01 | Peak Reducing EMI Solution |
| W181-52G | Peak Reducing EMI Solution |
| W181-53G | Peak Reducing EMI Solution |
| W181-51G | Peak Reducing EMI Solution |
| W182 | Full Feature Peak Reducing EMI Solution |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W180_05 | 制造商:CYPRESS 制造商全稱(chēng):Cypress Semiconductor 功能描述:Peak Reducing EMI Solution |
| W180-01G | 制造商:Cypress Semiconductor 功能描述:PLL Frequency Synthesizer Single 8-Pin SOIC 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| W180-01GT | 制造商:CYPRESS 制造商全稱(chēng):Cypress Semiconductor 功能描述:Peak Reducing EMI Solution |
| W180-02G | 制造商:Rochester Electronics LLC 功能描述:SPREAD SPECTRUM FTG CLOC - Bulk |
| W180-02GT | 制造商:Cypress Semiconductor 功能描述:PLL Frequency Synthesizer Single 8-Pin SOIC T/R |
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