MJ1473 Datasheet (Plessey) - PCM TRANSMITTER

MJ1473, PCM TRANSMITTER

The MJ1473 generates exchange timing by a synchronous 9-bit counter driven by exchange clock CKE and preset by P1,P2.

The exchange clock also clocks data, DIN,through the channel 0 former and to DOUT via an eight bit shift register.

In the channel 0 former, data bits of channel 0 are modified as sho

MJ1473 Gt~i~~~! ________________________ MJ1473 PCM TRANSMITTER CIRCUIT The MJ1400 Series of circuits have been specifically designed for use in 30 channel PCM systems.

The MJ1473 is designed to simplify the transmit section of a 30 channel, 2 MBit PCM link by converting NRZ PCM data to either AMI or HDB3 format after inserting a synchronising word in channel 0 (conforming to CCITT recommendations G.703 and G.732).

The data is output in pseudo-ternary form to facilitate driving the line interf

MJ1473 Features

* 5V - 30mA Power Requirements

* 0-70°C Operation

* Complies with Relevant CCITI Recommendations

* Control Signals Compatible with MJ1472,4

* NRZ, AMI or HDB3

* Transmission Format

* Transmission Format Controlled Locally or Remotely Via TSO Data