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參數(shù)資料
| 型號(hào)： | CY2220PVC-1 |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | 133-MHz Spread Spectrum Clock Synthesizer/Driver With Differential CPU Outputs |
| 中文描述： | 133 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56 |
| 封裝： | SSOP-56 |
| 文件頁(yè)數(shù)： | 3/11頁(yè) |
| 文件大小： | 128K |
| 代理商： | CY2220PVC-1 |
CY2220
Document #: 38-07206 Rev. *A
Page 3 of 11
Actual Clock Frequency Values
Function Table
[3]
SEL133
0
0
0
0
1
1
1
1
SELA
0
0
1
1
0
0
1
1
SELB
0
1
0
1
0
1
0
1
CPUCLK
(MHz)
100
N/A
N/A
Hi-Z
133
N/A
N/A
TCLK/2
MemRef
(MHz)
50
N/A
N/A
Hi-Z
66
N/A
N/A
TCLK/4
3V66CLK
(MHz)
66
N/A
N/A
Hi-Z
66
N/A
N/A
TCLK/4
PCICLK
(MHz)
33
N/A
N/A
Hi-Z
33
N/A
N/A
TCLK/8
USBCLK
(MHz)
48
N/A
N/A
Hi-Z
48
N/A
N/A
TCLK/2
REFCLK
(MHz)
14.318
N/A
N/A
Hi-Z
14.318
N/A
N/A
TCLK
Clock
Output
CPUCLK
CPUCLK
USBCLK
Target
Frequency
(MHz)
100
133
48
CY2220-1
CY2220-2
Actual Frequency
(MHz)
99.126
132.769
48.008
PPM
–
8741
–
1740
167
Actual Frequency
(MHz)
100.227
133.269
48.008
PPM
+2270
+2022
167
Swing Select Functions
MultSel0
0
MultSel1
0
Board Target
60
Reference R, I
REF =
Rr = 475 ± 1%,
Iref = 2.32 mA
Rr = 475 ± 1%,
Iref = 2.32 mA
Rr = 475 ± 1%,
Iref = 2.32 mA
Rr = 475 ± 1%,
Iref = 2.32 mA
Rr = 475 ± 1%,
Iref = 2.32 mA
Rr = 475 ± 1%,
Iref = 2.32 mA
Rr = 475 ± 1%,
Iref = 2.32 mA
Rr = 475 ± 1%,
Iref = 2.32 mA
Output
Current
I
OH
= 5*Iref
V
@ Z,
Iref = 2.32 mA
0.71 @ 60
0
0
50
I
OH
= 5*Iref
0.59 @ 50
0
1
60
I
OH
= 6*Iref
0.85 @ 60
0
1
50
I
OH
= 6*Iref
0.71 @ 50
1
0
60
I
OH
= 4*Iref
0.56 @ 60
1
0
50
I
OH
= 4*Iref
0.47 @ 50
1
1
60
I
OH
= 7*Iref
0.99 @ 60
1
1
50
I
OH
= 7*Iref
0.82 @ 50
Clock Driver Impedances
Impedance
Typical
Buffer Name
CPUCLK, CPUCLKB
USB, REF
PCI, 3V66
MemRef, MemRefB
V
DD
Range
Buffer Type
Type X1
Type 3
Type 5
Type 5
Minimum
Maximum
3.135
–
3.465
3.135
–
3.465
3.135
–
3.465
20
12
12
40
30
30
60
55
55
Note:
3.
TCLK is a test clock driven in on the XTALIN input in test mode.
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