描述 Description

The SN65MLVD047A is a quadruple line driver that complies with the TIA/EIA-899 standard, Electrical Characteristics of Multipoint-Low-Voltage Differential Signaling (M-LVDS). The output current of this M-LVDS device has been increased, in comparison to standard LVDS compliant devices, in order to support doubly terminated transmission lines and heavily loaded backplane bus applications. Backplane applications generally require impedance matching termination resistors at both ends of the bus. The effective impedance of a doubly terminated bus can be as low as 30 . The SN65MLVD047A devices allow for multiple drivers to be present on a single bus. SN65MLVD047A drivers are high impedance when disabled or unpowered. Driver edge rate control is incorporated to support operation. The M-LVDS standard allows up to 32 nodes (drivers and/or receivers) to be connected to the same media in a backplane when multiple bus stubs are expected from the main transmission line to interface devices. The SN65MLVD047A provides 9-kV ESD protection on all bus pins.

特性 Features

? Differential Line Drivers for 30- Loads and Data Rates
Up to 200 Mbps, Clock Frequencies up to 100 MHz
? Supports Multipoint Bus Architectures
? Meets the Requirements of TIA/EIA-899
? Operates from a Single 3.3-V Supply
? Characterized for Operation from -40°C to 85°C
? 16-Pin SOIC (JEDEC MS-012) and 16-Pin TSSOP (JEDEC MS-153) Packaging
? APPLICATIONS
? AdvancedTCA? (ATCA?) Clock Bus Driver
? Clock Distribution
? Backplane or Cabled Multipoint Data Transmission in Telecommunications, Automotive, Industrial, and Other Computer Systems
? Cellular Base Stations
? Central-Office and PBX Switching
? Bridges and Routers
? Low-Power High-Speed Short-Reach Alternative to TIA/EIA-485
The data rate of a line, is the number of voltage transitions that are made per second expressed in the units bps (bits per second). AdvancedTCA and ATCA are trademarks of the PCI Industrial Computer Manufacturers Group.