MH88634B

MH88634B Central Office Interface Circuit Advance Information Features Loop Start Trunk Interface 600Ω & 900Ω Input Impedance 2-4 Wire Conversion Line state Detection Outputs: - Forward Loop - Reverse Loop - Ringing Voltage - Switch Hook One Relay Driver On-Hook Reception Small footprint area Meets FCC Part 68 Leakage Current Requirements DS5061 ISSUE 6 January 1999 Ordering Information MH88634BV-2 21 Pin SIL Package MH88634BT-2 21 Pin 90° L/F Package MH88634BV-4 21 Pin SIL Package 0°C to 70°C Description The Mitel MH88634-2 Central Office Interface Circuit trunk provides a complete analogue and signalling link between audio switching equipment and a telephone Line. The device is available in a single in line package for high packing densities or with a lead frame formed at 90° for low clearance applications. The device is fabricated as a thick film hybrid incorporating various technologies for optimum circuit design and very high reliability. This part supercedes the MH88634-2 and is pin for pin compatible. We advise that the B rev parts are fully tested. However, we do not expect to see changes between MH88634-2 and MH88634BV-2. The component design has been changed to improve the general performance of the part. It is also now capable of operating at a 24V battery. Applications Interface to Central Office for: PABX Key Telephone Systems Channel Bank Voice Mail Terminal Equipment Digital Loop Carrier Optical Multiplexer RV FL RL SHK ...