- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359431 > VSC8117QP2 (VITESSE SEMICONDUCTOR CORP) GIGATRUE 550 CAT6 PATCH 30 FT. SNAGLESS BLUE PDF資料下載
參數(shù)資料
| 型號： | VSC8117QP2 |
| 廠商： | VITESSE SEMICONDUCTOR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | GIGATRUE 550 CAT6 PATCH 30 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)： | 5/22頁 |
| 文件大?。?/td> | 406K |
| 代理商： | VSC8117QP2 |
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 5
VITESSE
Data Sheet
VSC8117
ATM/SONET/SDH 622/155 Mb/s Transceiver Mux/Demux
with Integrated Clock Generation and Clock Recovery
Figure 3: Facility Loopback Data Path
Equipment Loopback
The Equipment Loopback function is controlled by the EQULOOP signal. When the EQULOOP signal is
set high, the Equipment Loopback mode is activated and the high speed transmit data generated from the paral-
lel to serial conversion of the low speed data (TXIN[7:0]) is selected and converted back to parallel data in the
receiver section and presented to the low speed parallel outputs (RXOUT[7:0]). See Figure 4. The internally
generated 155/622MHz clock is used to generate the low speed receive clock output (RXLSCKOUT). In Equip-
ment Loopback mode the transmit data (TXIN[7:0]) is serialized by the on-chip CMU and presented at the high
speed output (TXDATAOUT).
CRU Equipment Loopback
Exactly the same as equipment loopback, the point where the transmit data is looped back is moved all the
way back to the high speed I/O. When the CRUEQLP signal is set high, transmit data is looped back to the
CRU, replacing RXDATAIN±
Figure 4: Equipment Loopback Data Path
D
Q
D
Q
S1:8
Parallel
Q
D
RXDATAIN
TXDATAOUT
RXOUT[7:0]
Q
D
TXIN[7:0]
P8:1
Serial
PLL
0
1
0
1
CRU
FACLOOP
RXCLKIN
0
1
RClock
Divide-by-8
RXLSCKOUT
D Q
D
Q
S1:8
Parallel
Q
D
RXDATAIN
TXDATAOUT
RXOUT[7:0]
Q
D
P8:1
Serial
TXIN[7:0]
÷
8
PLL
÷
8
RXLSCKOUT
TXLSCKOUT
0
1
EQULOOP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VSC8121QI | 2.488GHz SONET/SDH Clock Generator |
| VSC8121 | 2.488GHz SONET/SDH Clock Generator |
| VSC8122 | Multi-Rate SONET/SDH Clock and Data Recovery IC |
| VSC8122QP | Multi-Rate SONET/SDH Clock and Data Recovery IC |
| VSC8123 | 10Mb/s to 2.7Gb/s Rate Agile, Adaptive Clock and Data Recovery |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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: |
| VSC8123 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:10Mb/s to 2.7Gb/s Rate Agile, Adaptive Clock and Data Recovery |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。