XRT59L91 Datasheet, PDF (23/28 Pages) Exar Corporation – Single-Chip E1 Line Interface Unit

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