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參數(shù)資料
| 型號： | VSC8117QP1 |
| 廠商： | VITESSE SEMICONDUCTOR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | GIGATRUE 550 CAT6 PATCH 25 FT, SNAGLESS, BLUE |
| 中文描述： | TRANSCEIVER, PQFP64 |
| 封裝： | 10 X 10 MM, HEAT SPREADER, PLASTIC, QFP-64 |
| 文件頁數(shù)： | 21/22頁 |
| 文件大?。?/td> | 406K |
| 代理商： | VSC8117QP1 |
G52221-0, Rev. 4.1
1/8/00
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 805/388-3700 FAX: 805/987-5896
Page 21
VITESSE
Data Sheet
VSC8117
ATM/SONET/SDH 622/155 Mb/s Transceiver Mux/Demux
with Integrated Clock Generation and Clock Recovery
Ground Planes
The ground plane for the components used in the High Speed interface should be continuous and not sec-
tioned in an attempt to provide isolation to various components. Sectioning of the ground planes tends to inter-
fere with the ground return currents on the signal lines. In addition, the smaller the ground planes the less
effective they are in reducing ground bounce noise and the more difficult to decouple. Sectioning of the positive
supplies can provide some isolation benefits.
Figure 12: AC Coupled High Speed I/O
Table 17: AC Coupling Component Values
Component
Value
Tolerance
R1
R2
R3
R4
270 ohms
75 ohms
68 ohms
190 ohms
5%
5%
1%
1%
C1, C2, C3, C4
.01uf High Frequency
PC Board Trace
PC Board Trace
DRIVER
(Optics Module)
RECEIVER
(Optics Module)
VSC8117
PECL I/O
R2
R4
C2
C1
R3
Note: Only one side of a differential signal is shown.
R1
GND
+3.3V
+5.0V
GND
GND
GND
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相關代理商/技術(shù)參數(shù) |
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|---|---|
| VSC8117QP2 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:ATM/SONET/SDH 622/155 Mb/s Transceiver Mux/Demux with Integrated Clock Generation and Clock Recovery |
| VSC8121 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:2.488GHz SONET/SDH Clock Generator |
| VSC8121QI | 制造商:Vitesse Semiconductor Corporation 功能描述: |
| VSC8122 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Multi-Rate SONET/SDH Clock and Data Recovery IC |
| VSC8122QP | 制造商:Vitesse Semiconductor Corporation 功能描述: |
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