- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359431 > VSC8117QP1 (VITESSE SEMICONDUCTOR CORP) GIGATRUE 550 CAT6 PATCH 25 FT, SNAGLESS, BLUE PDF資料下載
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)： | 1/22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 1
VITESSE
Data Sheet
VSC8117
ATM/SONET/SDH 622/155 Mb/s Transceiver Mux/Demux
with Integrated Clock Generation and Clock Recovery
Features
General Description
The VSC8117 is an ATM/SONET/SDH compatible transceiver integrating an on-chip Clock Multiplication
Unit (PLL) for the high speed clock as well as a clock and data recovery unit (CRU) with 8 bit serial-to-parallel
and parallel-to-serial data conversion. The PLL clock is used for serialization in the transmit direction (Mux).
The recovered clock is used for deserialization in the receive direction (Demux). The demultiplexer contains
SONET/SDH frame detection and recovery. The device provides facility loopback, equipment loopback, and
loop timing modes. The part is packaged in a 64-pin PQFP with integrated heat spreader for optimum thermal
performance and reduced cost. The VSC8117 provides an integrated solution for ATM physical layers and
SONET/SDH systems applications.
Functional Description
The VSC8117 is designed to provide a SONET/SDH compliant interface between the high speed optical
networks and the lower speed User Network Interface devices such as the PM5355 S/UNI-622. The VSC8117
converts 8 bit parallel data at 77.76Mb/s or 19.44Mb/s to a serial bit stream at 622.08Mb/s or 155.52Mb/s
respectively. The device also provides a Facility Loopback function which loops the received high speed data
and clock (optionally recovered on-chip) directly to the high speed transmit outputs. A Clock Multiplier Unit
(CMU) is integrated into the transmit circuit to generate the high speed clock for the serial output data stream
from input reference frequencies of 19.44 or 77.76 MHz. The CMU can be bypassed with the recovered clock in
loop timing mode thus synchronizing the entire part to a single clock. The block diagram on page 2 shows the
major functional blocks associated with the VSC8117.
The receive section provides the serial-to-parallel conversion, converting the 155.52Mb/s or 622.08Mb/s bit
stream to an 8 bit parallel output at 19.44Mb/s or 77.76Mb/s respectively. A Clock Recovery Unit (CRU) is inte-
grated into the receive circuit to recover the high speed clock from the received serial data stream. The receive
section provides an Equipment Loopback function which will loop the low speed transmit data and clock back
through the receive section to the 8 bit parallel data bus and clock outputs. The VSC8117 also provides the
option of selecting between either its internal CRU’s recovered clock and data signals or optics containing a
+3.3V/5V programmable PECL Serial Interface
Provides Equipment, Facilities and Split Loop-
back Modes as well as Loop Timing Mode
Provides TTL and PECL reference clock inputs
Meets Bellcore, ITU and ANSI Specifications for
Jitter Performance
Low Power - 1.0 Watts Typical
64 PQFP Package
Operates at Either STS-3/STM-1 (155.52Mb/s)
or STS-12/STM-4 (622.08Mb/s) Data Rates
Compatible with Industry ATM UNI Devices
On Chip Clock Generation of the
155.52MHz
or
622.08MHz High Speed Clock (Mux)
On Chip Clock Recovery of the
155.52MHz or
622.08MHz High Speed Clock (Demux)
8 Bit Parallel TTL Interface
SONET/SDH Frame Recovery
Loss of Signal (LOS) Input & LOS Detection
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VSC8117QP2 | GIGATRUE 550 CAT6 PATCH 30 FT. SNAGLESS BLUE |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。