Recommended circuits, Ecommended, Ircuits – Rainbow Electronics DS26503 User Manual
Page 90: Figure 13-4. basic interface, Figure 13-4, Should, R in, 8 recommended circuits
DS26503 T1/E1/J1 BITS Element
90 of 123
13.8 Recommended Circuits
Figure 13-4. Basic Interface
TTIP
TRING
RTIP
RRING
DVDD
TVDD
RVDD
V
DD
DVSS
TVSS
RVSS
DS26503
R
R
2:1
1:1
C
0.1
mF
0.1
mF
0.1
mF
0.01
mF
TRANSMIT
LINE
RECEIVE
LINE
0.1
mF
10
mF
10
mF
+
+
NOTES:
1) All resistor values are ±1%.
2) Resistors R should be set to 60
W each if the internal receive-side termination feature
is enabled. When this feature is disabled,
R = 37.5
W for 75W coaxial E1 lines; 60W for 120W twisted pair E1 lines; or 50W for
100
W twisted pair T1 lines.
3) C = 10
mF ceramic.
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