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參數(shù)資料
| 型號(hào)： | W530-02 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Frequency-multiplying, Peak-reducing EMI Solution |
| 中文描述： | 頻率增多，峰值降低了EMI解決方案 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 92K |
| 代理商： | W530-02 |
Frequency-multiplying, Peak-reducing
EMI Solution
W530-02
Cypress Semiconductor Corporation
Document #: 38-07190 Rev. *A
3901 North First Street
San Jose
,
CA 95134
408-943-2600
Revised January 7, 2003
Features
Cypress PREMIS SMARTSPREAD family offering
Generates an electromagnetic-interference
(EMI)-optimized clocking signal at the output
Selectable frequency range and multiplication factor
Single 1.25%, 2.5%, 5%, or 10%, down or center spread
output
Integrated loop filter components
Operates with a 3.3V or 5V supply
Low-power CMOS design
Higher drive strength, higher frequency support than
W530
Available in 20-pin SSOP
Key Specifications
Supply Voltages:....................................... V
DD
= 3.3V ± 0.3V
or V
DD
= 5V ± 10%
Frequency Range:.........................13 MHz
≤
F
out
≤
166 MHz
Cycle to Cycle Jitter: ........................................250 ps (max.)
Output Duty Cycle: ...............................40/60% (worst case)
Table 1. Output Frequency Range Selection
OR
2
OR
1
Output Range
(Multiplication Factor Selection)
0
0
reserved
0
1
13 MHz
≤
F
OUT
≤
30 MHz
25 MHz
≤
F
OUT
≤
60 MHz
50 MHz
≤
F
OUT
≤
166 MHz
1
0
1
1
Table 2. Modulation Width Selection
MW2
MW1
MW0
Output
0
0
0
F
in
≥
F
out
≥
F
in
–
1.25%
F
avg
+
0.625%
≥
F
out
≥
F
avg
–
0.625%
0
0
1
0
1
0
F
in
≥
F
out
≥
F
in
–
2.5%
F
avg
+
1.25%
≥
F
out
≥
F
avg
–
1.25%
F
in
≥
F
out
≥
F
in
–
5%
F
avg
+
2.5%
≥
F
out
≥
F
avg
–
2.5%
F
in
≥
F
out
≥
F
in
–
10%
F
avg
+
5%
≥
F
out
≥
F
avg
–
5%
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Table 3. Input Frequency Range Selection
IR2
IR1
Input Range
0
0
reserved
0
1
13 MHz
≤
F
IN
≤
30 MHz
25 MHz
≤
F
IN
≤
60 MHz
50 MHz
≤
F
IN
≤
166 MHz
1
0
1
1
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