VSC8204中文資料VITESSE數(shù)據(jù)手冊(cè)PDF規(guī)格書

GENERAL DESCRIPTION :

The VSC8204 is a low power, low cost, quad port Gigabit Ethernet PHY. It is ideal for Gigabit Ethernet Switch applications that require a GMII/MII, RGMII, TBI, or RTBI MAC / Switch interface. Vitesse’s proprietary DSP technology yields robust performance and low power consumption, supporting 1000BASE-T over unshielded twisted pair (UTP) cable, with more than 5dB of design margin with respect to all worst-case impairments (NEXT, FEXT, Echo, and system noise sources).

FEATURES :

? Four, Triple Speed (10/100/1000BASE-T) Transceivers in a Single 388- Pin Thermally Enhanced HS-PBGA Package

? 1000BASE-T Power Consumption of <1W per Port

? Integrated Series Termination Resistors on MAC Interface Pins

? Integrated RGMII Timing Compensation Eliminates PCB Design Challenges

? VeriPHY? Cable Diagnostics Software Suite

? Fully IEEE 802.3, 802.3u (10BASE-T, 100BASE-TX) & 802.3ab (1000BASE-T) Compliant

? Automatic Detection and Correction of Cable Pair Swaps, Pair Skew, and Pair Polarity, Along with Auto MDI/MDI-X Crossover Function

? Choice of Standard GMII/MII or TBI, or Pin Saving RGMII/RTBI Interfaces

? Optional, Integrated Oscillator Circuit

? >10KB Jumbo Frame Support with Programmable Synchronization FIFOs

? Manufactured in Mainstream, 3.3V / 1.5V Digital CMOS rocess

BENEFITS :

? Enables Widespread, Low Cost, 1000BASE-T Deployment in Gigabit Ethernet and Switches

? Eliminates Expensive Fans and Heat Sinks

? Improves Signal Integrity, Reduces EMI, and Eliminates More Than 600 External Components in 48-port Switch Blade Applications

? Decreases Board Design Efforts, Increases PCB Timing Margins and Yields, and Shortens Time-to-market

? Enables Network Manufacturers to Simplify Deployment and Improve Network Management Capabilities of Gigabit Ethernet Links

? Ensures Seamless Deployment Throughout Category-5 Networks

? Compatible with 1st Generation 1000BASE-T PHYs, Allowing Trouble Free Migration to 1000BASE-T by Minimizing Common Interoperability Problems

? Compatible with a Wide Variety of MACs and Switches

? Supports Single Low Cost 25MHz Crystal, or Either a 25MHz or 125MHz Standard Reference Clock Input

? Provides Support for Maximum Jumbo Frame Sizes in Custom LAN and SAN Systems

? Cost Effective Manufacturing Process Eliminates Expensive Analog Process Variants

APPLICATIONS :

? Desktop LAN and SAN Switches with High Density 10/100/1000BASE-T Ports

? Workgroup & Campus Switches, Routers

? High Performance, Multi-port Server NICs