Preliminary Information
MT9076
R
Fuse
T
1:2.4
0.47uF
Tx
TTIP
R
T
Fuse
Fuse
TRING
RT: 2.4 Ω
+3.3 V
1:2.4
RTIP
17.36 Ω
Fuse
RRING
Rx
Figure 5 - Analog Line Interface (T1)
Functional Description
Name
TXL2-0 Transmit Line Build Out 2 - 0. Setting these bits shapes the transmit pulse as detailed in the table
below:
TXL2
TXL1
TXL0
Line Build Out
0 to 133 feet/ 0 dB
133 to 266 feet
266 to 399 feet
399 to 533 feet
533 to 655 feet
-7.5 dB
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
-15 dB
-22.5 dB
After reset these bits are zero.
Table 1 - Transmit Line Build Out (T1)
Tx
1:2.4 (WR=0)
Fuse
RT
RT
1:2 (WR=1)
0.47uF
TTIP
TRING
RTIP
Fuse
RT: Termination resis-
tor. Please check
Table 2 for specific
resistor values.
+3.3V
Fuse
Fuse
1:2.4
20.83 Ω
RRING
Rx
Figure 6 - Analog Line Interface (E1)
19
MITEL [ MITEL NETWORKS CORPORATION ]
