MH89792

® MH89792 E1 Transceiver Preliminary Information Features Complete primary rate 2048kb/s CEPT line driver and receiver Onboard pulse transformers for transmit and receive Meets latest ETSI requirements (ETSI ETS 300 011 (NET 5)) Inductorless clock recovery Loss of signal indication/ polarity selection Programmable polarity of extracted clock & receive data Single +5V operation Compatible with all E1 framers Small footprint area (<330mm 2) MH89792-1 MH89792-2 MH89792-3 ISSUE 3 April 1995 Ordering Information 20 Pin SIL Package 20 Pin SIL Package 20 Pin SIL Package 0° C to 70° C Description The Mitel MH89792 is a low cost E1 line driver/ receiver with clock extraction requiring no external components. There are three versions available: MH89792-1 for 120Ω twisted pair cable; MH89792-2 for 75Ω co-axial links; MH89792-3 for 100Ω digital twisted pair. Applications Primary rate ISDN network Interface Multiplexer equipment Private Network links Isochronous LANS/WANS VDD VSS TxA TxB E2o LOSP CLKF/ CLKR RxINV RxA RxB LOS RxD Line Driver Transmit Isolation Transformer 6dB Pad TLA TLB Polarity Selection Clock/Data Clock Recovery Receive Isolation Transformer Line Receiver RLA RLB EQUIPMENT SIDE LINE SIDE Figure 1 - Functional Block Diagram 4-223 MH89792 E2o VDD RxA RxB VSS RxD RxINV CLKF/CLKR LOS LOSP NC RLA RLB TLA TLB NC NC NC TxA TxB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Preliminary Information Figure 2 - Pin Connections ...