描述 Description

The CPC7581 is a monolithic solid-state four-pole switch in a 16-pin package. It provides the necessary functions to replace a 2-Form-C electromechanical relay on traditional analog and integrated voice and data (IVD) line cards found in central office, access, and PBX equipment. The CPC7581 contains solid-state switches for tip and ring lead line break and ringing injection/ringing return. The device requires only a +5 V supply and offers break-before-make and make-before-break operation using logic-level inputs.

特性 Features

? Small 16-pin SOIC or DFN package

? DFN package printed-circuit board footprint is 60 percent smaller than the SOIC version, 40 percent smaller than fourth generation EMR solutions.

? Monolithic IC reliability

? Low, matched RON

? Eliminates the need for zero-cross switching

? Flexible switch timing for transition from ringing mode to idle/talk mode.

? Clean, bounce-free switching

? Tertiary protection consisting of integrated current limiting, thermal shutdown for SLIC protection

? 5 V operation with power consumption < 10 mW

? Intelligent battery monitor

? Latched logic-level inputs, no external drive circuitry required

? SOIC package pin-compatible with Legerity product

Applications

? Central office (CO)

? Digital Loop Carrier (DLC)

? PBX Systems

? Digitally Added Main Line (DAML)

? Hybrid Fiber Coax (HFC)

? Fiber in the Loop (FITL)

? Pair Gain System

? Channel Banks