MH88630

Features:

• Transformerless 2-4 Wire conversion
• Line state detection outputs:
   - forward current
   - reverse current
   - ring ground
   - tip ground
   - ringing voltage
• Programmable audio transmit and receive gain
• Loop start or ground start termination
• Selectable 600 or AT&T compromise balance network


Application

• PBX Interface to Central Office
• Channel bank
• Intercom
• Key system


Pinout




Specifications

	Parameter	Sym	Min.	Max	Units
1	DC Supply Voltages)	VDD -GNDA	-0.3	+6.0	V
		VEE -GNDA	-6.0	+0.3	V
		VCC+ -GNDA		+18.0	V
		VCC- -GNDA	-18.0		V
2	Storage Temperature	TSTG	-55	+125	°C

Description

The Mitel MH88630 Central Office Trunk Interface circuit provides a complete audio and signalling link between an audio switching equipment and a central office. The loop seize circuitry is controlled by an external input to provide either a loop start or ground start termination. The MH88630 is fabricated using thick film hybrid technology to achieve high density circuit design.