參數(shù)資料
型號(hào)： CY25566
廠商： Cypress Semiconductor Corp.
英文描述： Spread Spectrum Clock Generator
中文描述： 擴(kuò)頻時(shí)鐘發(fā)生器
文件頁數(shù)： 5/9頁
文件大?。?/td> 116K
代理商： CY25566
CY25566
Document #: 38-07429 Rev. *A
Page 5 of 9
Table 1. Frequency and Bandwidth Selection Chart (Group 1)(Low Frequency (1x) Selection Chart)
25
–
50 MHz (Low Range)
S1 = M
S0 = M
3.8
3.5
3.3
3.1
50
–
100 MHz (High Range)
S1 = 0
S0 = 1
2.1
2.0
1.8
1.7
XIN/CLK
(MHz)
25
–
35
35
–
40
40
–
45
45
–
50
S1 = M
S0 = M
4.3
3.9
3.7
3.4
S1 = 1
S0 = 0
3.4
3.1
2.8
2.6
S1 = 0
S0 = 0
2.9
2.5
2.4
2.2
S1 = 0
S0 = M
2.8
2.4
2.3
2.1
XIN/CLK
(MHz)
50
–
60
60
–
70
70
–
80
80
–
100
S1 = 1
S0 = M
2.9
2.8
2.6
2.4
S1 = 1
S0 = 1
1.5
1.4
1.3
1.2
S1 = M
S0 = 1
1.2
1.1
1.1
1.0
S3
S2
0
0
S3
S2
0
0
Table 2. Frequency and Bandwidth Selection Chart (Group 2)(High Frequency (1x) Selection Chart)
50
–
100 MHz (Low Range)
S1 = M
S0 =0
3.8
3.6
3.4
3.1
100
–
200 MHz (High Range)
S1 = 0
S0 = 1
2.4
2.1
2.0
2.0
1.8
1.8
1.8
1.7
1.6
XIN/CLK
(MHz)
50
–
60
60
–
70
70
–
80
80
–
100
S1 = M
S0 = M
4.2
4.0
3.8
3.5
S1 = 1
S0 = 0
3.2
3.1
2.9
2.7
S1 = 0
S0 = 0
2.8
2.6
2.5
2.2
S1 = 0
S0 = M
2.7
2.5
2.4
2.1
XIN/CLK
(MHz)
100
–
120
120
–
130
130
–
140
140
–
150
150
–
160
160
–
170
170
–
180
180
–
190
190
–
200
S1 = 1
S0 = M
3.0
2.7
2.6
2.6
2.5
2.4
2.4
2.3
2.3
S1 = 1
S0 = 1
1.6
1.4
1.3
1.3
1.2
1.2
1.2
1.1
1.1
S1 = M
S0 = 1
1.3
1.1
1.1
1.1
1.0
1.0
1.0
0.9
0.9
S3
S2
1
0
S3
S2
1
0
Table 3. Frequency and Bandwidth Selection Chart (Group 3)(Low Frequency (2x) Selection Chart)
25
–
50 MHz (Low Range, 2X)
S1 = M
S0 = M
4.0
3.8
3.5
3.3
XIN/CLK
(MHz)
25
–
35
35
–
40
40
–
45
45
–
50
SSCLK1
(MHz)
50-70
70-80
80-90
90-100
S1 = M
S0 = 0
3.5
3.3
3.1
2.9
S1 = 1
S0 = 0
3.0
2.9
2.7
2.5
S1 = 0
S0 = 0
2.6
2.4
2.2
2.1
S1 = 0
S0 = M
2.5
2.3
2.1
2.0
S3
S2
0
1
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