XRT59L91ID View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

XRT59L91ID

Single-Chip E1 Line Interface Unit

Exar Corporation 

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Preliminary

XRT59L91

TxPOS

TxNEG

T x L In e C lk

U1

2

TxPOS

3

TxNEG

1

T x C lk

13

TTIP

1 R1 2

9.1

15

TR ing

1 R2 2

9.1

1 1:2 5

4

8

PE-65835

RxPOS

RxNEG

Loss of Signal

6

RxPOS

7

RxNEG

8

RxLOS

XRT59L91

9

R T IP

10

RR ing

1 1:2 5

R3

30.1

4

8

PE-65835

Figure 17. Illustration on how to interface the XRT59L91 Device to the Line

(Receiver is Transformer-coupled to a 120W balanced line)

TTIP

T R IN G

R T IP

R R IN G

Rev. P2.00

23

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