ADI LTC4312IMS#PBF

Буфер, мультиплексор2-проводная шина2-проводная шина400 кГц1 x 1:2

Overview

The LTC4312IMS#PBF is a hot-swappable 2-channel 2-wire bus multiplexer that allows one upstream bus to connect to any combination of downstream busses or channels. An individual enable pin controls each connection. The LTC4312IMS#PBF provides bidirectional buffering, keeping the upstream bus capacitance isolated from the downstream bus capacitances. The high noise margin allows the LTC4312IMS#PBF to be interoperable with I2C devices that drive a high VOL (> 0.4V). The LTC4312IMS#PBF supports level translation between 1.5V, 1.8V, 2.5V, 3.3V and 5V busses. The hot-swappable nature of the LTC4312IMS#PBF allows I/O card insertion into, and removal from, a live backplane without corruption of the data and clock busses.

If both data and clock are not simultaneously high at least once in 45ms and DISCEN is high, a FAULT signal is generated indicating a stuck bus low condition, the input is disconnected from each enabled output channel and up to 16 clocks are generated on the enabled downstream busses. A three state ACC pin enables input and output side rise time accelerators of varying strengths and sets the VIL,RISING voltage.

Features

Applications

• Data or Clock Signal Amplification
• PECL-to-LVDS Translation
• Cellular Phone Base Stations
• Add/Drop Muxes
• Digital Crossconnects
• Network Switches/Routers
• Backplane Interconnect
• Clock Distribution
• Protection Switching
• Loopback