Product Summary

The MT9076BB is a T1/E1/J1 3.3 V Single Chip Transceiver. The MT9076BB is a highly featured single chip solution for terminating T1/E1/J1 trunks. It contains a long-haul LIU, an advanced framer, a high performance PLL and 3 HDLCs. The applications of the MT9076BB include T1/E1/J1 add/drop multiplexers, Access networks, Wireless base stations, CO and CPE equipment interfaces, Primary rate ISDN nodes, Digital Cross-connect Systems (DCS).

Parametrics

MT9076BB absolute maximum ratings: (1)Supply Voltage VDD: -0.3 to 7V; (2)Voltage at Digital Inputs VI: -0.3 VDD + 0.3V; (3)Current at Digital Inputs II: 30mA; (4)Voltage at Digital Outputs VO: -0.3 VDD + 0.3V; (5)Current at Digital Outputs IO: 30mA; (6)Storage Temperature TST: -65 to 150℃.

Features

MT9076BB features: (1)Combined T1/E1/J1 framer and LIU, with PLL and 3 HDLCs; (2)In T1/J1 mode the LIU can recover signals attenuated by up to 36 dB (at 772 kHz); (3)In E1 mode the LIU can recover signals attenuated by up to 40 dB (at 1.024 MHz); (4)Low jitter digital PLL (intrinsic jitter<0.02UI); (5)HDLCs can be assigned to any timeslot; (6) Comprehensive alarm detection, performance monitoring and error insertion functions; (7)2.048 Mbit/s or 8.192 Mbit/s ST-BUS streams; (8)Support for Inverse Mux for ATM (IMA); (9)Support for V5.1 and V5.2 Access Networks; (10)3.3 V operation with 5 V tolerant inputs; (11)Intel or Motorola non-multiplexed 8-bit microprocessor port; (12)JTAG boundary scan.

Diagrams

MT9076BB block diagram