MH89792 Datasheet, PDF (1/6 Pages) Mitel Networks Corporation – E1 Transceiver Preliminary Information

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 (<330mm²)
Applications
• Primary rate ISDN network Interface
• Multiplexer equipment
• Private Network links
• Isochronous LANS/WANS
ISSUE 3
April 1995
Ordering Information
MH89792-1 20 Pin SIL Package
MH89792-2 20 Pin SIL Package
MH89792-3 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.
VDD VSS
TxA
TxB
E2o
LOSP
CLKF/
CLKR
RxINV
RxA
RxB
LOS
RxD
Line
Driver
Polarity
Selection
Clock/Data
Transmit
6dB
Isolation
Pad
Transformer
Clock
Recovery
Line
Receiver
Receive
Isolation
Transformer
EQUIPMENT SIDE
Figure 1 - Functional Block Diagram
LINE SIDE
TLA
TLB
RLA
RLB
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