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Recommended circuits, Ecommended, Ircuits – Rainbow Electronics DS26502 User Manual

Page 90: Figure 13-4. basic interface, Figure 13-4, Should, R in, 8 recommended circuits

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DS26502 T1/E1/J1/64KCC BITS Element

90 of 125

13.8 Recommended Circuits

Figure 13-4. Basic Interface




























TTIP

TRING

RTIP

RRING

DVDD

TVDD

RVDD

V

DD

DVSS

TVSS

RVSS

DS26502

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; 55W for

110

W composite clock; or 50W for 100W twisted pair T1 lines.

3) C = 10

mF ceramic.

See also other documents in the category Rainbow Electronics Communication: