BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 109

• Manufacturer Part Number: BT8375
• Description: single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces
• Manufacturer: CONEXANT [Conexant Systems, Inc]

Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
Figure 2-46. Nominal Return Loss
N8370DSE
2.9.4.2 Return Loss
–31 dB
–18 dB
-10
-20
-30
-40
-50
-60
-70
-80
0
30
35
75
Return loss is the measure of loss in the return path due to an impedance
mismatch. To meet a –18 dB transmitter return loss, independent of the cable
type, uses a 51.1
different termination resistors on the pulse height, see
Nominal Return Loss for 75, 100, 120 lines, xfmr=1:1.36
40
45
termination resistor (see
Conexant
50
Rterm [ ]
55
100
60
Figure
65
120
2-46). To see the effect of
70
2.9 Transmit Line Interface Unit
Figure
2.0 Circuit Description
75
2-47.
80
2-81