MH88628

Features:

• Programmable gain, network balance and impedance
• Transformerless 2-4 wire conversion
• Constant current with constant voltage fallback for long loop capability
• Pin compatible with MH88632, MH88620 and MH88628
• Unbalanced detection (Tip, Ring ground sensing)
• Auto ring trip with zero crossing
• On-Hook transmission (ANI) capability
• Compatible with requirements of CCITT, DOC/FCC and CSA/UL
• Excellent power dissipation (SIL vertical mounting)
• 12/16kHz meter pulse injection control
• Solid State TIP/RING reversals
• Ringing amplifier


Application

• On/Off Premise PBX Line Cards
• DID (Direct Inward Dial) Line Cards
• Central Office Line Cards


Pinout




Specifications

	Parameter	Sym	Min	Max	Units
1	Supply Voltage	VBat	+0.3	65	V
		VDD	-0.3	6	V
		VEE	+0.3	-6	V
		VDCRI	-0.3	140	V
2	Storage Temperature	TS	-40	+125	°C

Description

The Mitel MH88628 SLIC provides all of the functions required to interface 2-wire off premise subscriber loops to a serial TDM, PCM, switching network of a modern PBX. The MH88628 is manufactured using thick-film hybrid technology which offers high voltage capability, reliability and high density resulting in significant printed circuit board area savings. A complete C.O. line card can be implemented with very few external components.