MH88435-P

Features:

• FAX and Modem interface V.34(33k6)
• Externally programmable line and network balance impedances
• Programmable DC termination characteristics
• IEC950 recognised component
• Transformerless 2-4 Wire conversion
• Integral Loop Switch
• Dial Pulse and DTMF operation
• Accommodates parallel phone detection
• Line state detection outputs:- loop current/ringing voltage/line voltage
• Single +5V operation, low on-hook power (35mW)
• Full duplex voice and data transmission
• On-Hook reception from the line
• Approvable to UL1950
• Industrial temperature range available


Application

Interface to Central Office or PABX line for:
• FAX/Modem (including software modems)
• Electronic Point of Sale
• Security System
• Telemetry
• Set Top Boxes


Pinout




Specifications

	Parameter	Symbol	Min	Max	Units	Comments
1	DC Supply Voltage	VCC	-0.3	6	V
2	Storage Temperature	TS	-55	+125	°C
3	DC Loop Voltage	VBAT	-110	+110	V
4	Ringing Voltage	VR		120	Vrms	VBAT = -56V
5	Loop Current	ILoop		90	mA
6	Ring Trip Current	ITRIP		180	mArms	250ms 10% duty cycle or 500ms single shot

Description

The Mitel MH88435 Data Access Arrangement (D.A.A.) provides a complete interface between audio or data transmission equipment and a telephone line. All functions are integrated into a single thick film hybrid module which provides high voltage isolation, very high reliability and optimum circuit design, needing a minimum of external components.

The impedance and network balance are externally programmable, as are the DC termination characteristics, making the MH88435 suitable for most countries worldwide