MH89626C

Features:

• Transformerless 2-4 wire conversion
• Constant current with constant voltage fallback for long loops
• Long length capability (R_Loop > 1850)
• Input impedance
• 200 + 560 // 0.1F (MH89626C-02)
• 200+ 680 // 0.1F (MH89626C-04)
• Ring trip filter with auto ring trip
• Three relay drivers
• Built-in Tip/Ring reversal capability on the hybrid
• Serial control interface
• External or software programmable receive gain, -3.5 or -7.0dB


Application

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


Pinout




Specifications

	Parameter	Symbol	Min	Max	Units
1	DC Supply Voltage	VDD	-0.3	7	V
		VEE	0.3	-7
2	DC Battery Voltage	VBAT	0.3	-65	V
3	DC Ring Relay Voltage	VRLY	-0.3	7	V
4	DC Reference Voltage	VREF	-0.3	VDD	V
5	AC Ring Generator Voltage			150	VRMS
6	DC Digital Input Voltage	GS, CSTi DSTi, C2i F1i	-0.3	VDD	V
8	Storage Temperature	TS	-40	+125	°C

Description

The MH89626C 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 MH89626C is manufactured using thick film hybrid technology which offers high voltage capability, reliability and high density resulting in significant printed circuit board area saving of the line cards. A complete line card can be implemented with very few external components.

The SLIC MH89626C has a simple serial control interface to control the receive gain setting, relay drivers for ringing, and Tip/Ring reversal for DID operation.