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參數(shù)資料
| 型號： | IDT74CV105BPV |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁數(shù)： | 15/21頁 |
| 文件大?。?/td> | 94K |
| 代理商： | IDT74CV105BPV |
COMMERCIALTEMPERATURERANGE
IDTCV105B
CLOCKGENERATORFORDESKTOPPCPLATFORMS
3
SPREAD SPECTRUM MAGNITUDE
CONTROL (SMC)
SMC[2:0]
000
Off
001
- 0.25
010
- 0.5
011
- 0.75
100
- 1
101
± 0.125
110
± 0.25
111
± 0.375
AFS[2:0]
AGP
PCI
Corresponding N
000
66.67
33.33
298
001
68.68
34.34
307
010
70.7
35.35
316
011
72.71
36.35
325
100
74.5
37.25
333
101
76.51
38.26
342
110
78.53
39.26
351
111
80.54
40.27
360
AGP/PCI STRENGTH
Str[1:0]
0, 0
1.2x
0, 1
0.7x
1, 0
0.8x
1, 1
1x
REF STRENGTH
REFStr[1:0]
0, 0
1x
0, 1
0.8x
1, 0
1.2x
1, 1
0.7x
3V66-PCI/F SKEW
Skew[2:0]
000
normal, 3V66 leads PCI 2.5ns
001
moveforward200ps
010
moveforward400ps
011
moveforward600ps
100
move backward 200ps
101
move backward 400ps
110
move backward 600ps
111
move backward 800ps
WDBS[2:0] or WDBS[2:0] or WDBS[2:0] or
WDBS[2:0] or
CFS[3:0]
BS[2:0] = 000
BS[2:0] = 001
BS = 010
BS[2:0] = 011
BS[2:0] = 100
BS[2:0] = 101
BS[2:0] = 110
BS[2:0] = 111
000
100
200.01
133.34
166.65
200.01
400.01
266.66
333.3
001
100.9
201.8
135.13
167.84
66.67
401.8
267.57
334.89
010
102.91
204.93
138.11
169.83
011
104.93
209.85
139.9
173.01
100
110.07
215.22
141.99
175
101
114.99
220.14
144.97
178.18
110
119.91
225.06
147.95
180.17
111
125.06
229.99
150.05
184.94
NResolution
0.223721591
0.447443181
0.298295454
0.397727272
0.447443181
0.894886363
0.795454544
CorrespondingN
447
419
447
298
419
SW FREQUENCY SELECTION
BS[2:0] and WBS[2:0] are band selects. Whenever there is a band switch, the user has to issue a WD soft alarm (see Byte 32 and Byte 33).
In CPU N/M programming, CPU frequency = N * resolution, N from 290 - 600.
AGP/PCI FREQUENCY SELECTION
In AGP/PCI N/M programming, AGP frequency = N * 0.223721591, N from
290 - 600
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