參數(shù)資料
型號(hào)： VSC8140TW
廠商： VITESSE SEMICONDUCTOR CORP
元件分類： 數(shù)字傳輸電路
英文描述： 2.48832Gb/s 16:1 SONET/SDH Transceiver with Integrated Clock Generator
中文描述： TRANSCEIVER, PBGA208
封裝： 23 X 23 MM, THERMALLY ENHANCED, TBGA-208
文件頁(yè)數(shù)： 1/34頁(yè)
文件大?。?/td> 528K
代理商： VSC8140TW
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 805/388-3700 FAX: 805/987-5896
Page 1
9/6/00
VITESSE
Data Sheet
VSC8140
Features
2.48832Gb/s 16-Bit Transceiver
Targeted for SONET OC-48 / SDH STM-16
Applications
LVPECL Low-Speed Interface
On-chip PLL-Based Clock Generator
High-Speed Clock Output With Power-Down
Option
Supports Parity at the 16-Bit Parallel Transmit
and Receive Interfaces
2.48832Gb/s 16:1 SONET/SDH
Transceiver with Integrated Clock Generator
G52251-0, Rev. 4.0
General Description
The VSC8140 is a SONET/SDH compatible transceiver with integrated clock generator for use in SONET/
SDH systems operating at a 2.48832Gb/s data rate. The internal clock generator uses a Phase-Locked Loop
(PLL) to multiply either a 77.76MHz or 155.52MHz reference clock in order to provide the 2.48832GHz clock
for internal logic and output retiming. The 16-bit parallel interface incorporates an on-board FIFO eliminating
loop timing design issues by providing a flexible parallel timing architecture. In addition, the device provides
both facility and equipment loopback modes and two loop timing modes. The VSC8140 operates using a 3.3V
power supply, and is available in either a thermally-enhanced 128-PQFP or a thermally-enhanced 208-pin
TBGA package.
VSC8140 Block Diagram
Provides Equipment, Facilities and Split Loop-
back Modes as well as Loop Timing Modes
Loss of Signal (LOS) Detect input
Meets Bellcore Jitter Performance Specifications
Single +3.3V Supply
2.25 Watts Typical Power Dissipation
Packages: 128-pin PQFP or 208-pin TBGA
RXOUT15
TXIN15
RXOUT0
RXPARITYOUT
RXCLK16O+
RXCLK16O-
RXCLKIN+
RXCLKIN-
O
RXCLKO16_32+
RXCLKO16_32-
PARMODE
Divide by
2
TXIN0
TXPARITYIN
TXCLK16O+
TXCLK16O-
LPTIMCLK+
LPTIMCLK-
TXOUT+
TXOUT-
I
Divide by
16
REFCLK+
REFCLK-
LOOPTIM1
2.48832GHz
PLL
TXCLK16I+
TXCLK16I-
Q D
FACLOOP
LOOPTIM0
FIFO
CNTRL
FIFORESET
Divide by
16
EQULOOP
D Q
RXIN+
RXIN-
TXCLKOUT+
TXCLKOUT-
Write
Read
Pointer
1
PARERR
LOS
POL
OVERFLOW
VREFIN
voltage
gen.
RXCLKO_FREQSEL
CLK128O+
CLK128O-
Divide
by 128
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參數(shù)描述
VSC8141 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Multi-Rate 16:1 SONET/SDH Transceiver with Integrated Clock Generator
VSC8141QR 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Multi-Rate 16:1 SONET/SDH Transceiver with Integrated Clock Generator
VSC8141TW 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Multi-Rate 16:1 SONET/SDH Transceiver with Integrated Clock Generator
VSC8142 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:2.5G Multi-rate SONET/SDH Transceiver Family
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