Description
The CPC7583 is a monolithic 10-pole line card access switch in a 20- or 28-pin SOIC or a 28-pin DFN package. It provides the necessary functions to replace three 2-Form-C electromechanical relays on analog line cards and combined voice and data line cards found in central office, access, and PBX equipment. The device contains solid state switches for tip and ring line break, ringing injection/ringing return, and test access. The CPC7583 requires only a +5 V supply and offers break-before-make or make-before-break switch operation.

Features
• Small 20-pin or 28-pin SOIC or 28-pin DFN
• DFN version provides 65% PCB area reduction over 4th generation EMRs
• Monolithic IC reliability
• Low, matched, RON
• Eliminates the need for zero-cross switching
• Flexible switch timing for transition from ringing mode to talk mode.
• Clean, bounce-free switching
• SLIC tertiary protection via integrated current limiting, voltage clamping and thermal shutdown
• 5 V operation with power consumption < 10.5 mW
• Intelligent battery monitor
• Logic-level inputs, no external drive circuitry required
• SOIC versions pin-compatible with Legerity 7583/8583 family

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