MH88614

Features:

• Transformerless 2-wire to 4-wire conversion
• Battery Feed
• Ringing & Messaging Facility
• Power Down with Wake Up output
• Automatic Ring Trip
• Programmable Constant Current
• Earth Ground Button detection
• Switch Hook detection
• Interface for a programmable CODEC
• Ring ground over-current protection
• Impedance reflection
• Loop Length Indication


Application

Line Interface for
• PABX
• Intercoms
• Key Telephone Systems
• Control Systems


Pinout




Description

The SLIC MH88614 provides a complete interface between an industry standard programmable CODEC or DSP and a subscriber loop.

Functions of MH88614 provided include battery feed, zero crossing ring control, programmable current feed, power down with wake up signal, cadenced messaging facility, switch hook & dial pulse detection, loop length indication and the capability of reflecting a programmable CODEC's impedance or supplying a standard 600 ohm impedance to the line. The MH88614 is fabricated as a thick film hybrid using various technologies for optimum circuit design high reliability.