MT9076
Preliminary Information
Name
Functional Description
WR
Winding Ratio. Set this pin low if a 1:2.4 transformer is used on the transmit side. Set this
pin high if a 1:2 transformer is used.
TX2-0
Transmit pulse amplitude. Select the TX2 –TX0 bits according to the line type, value of
termination resistors (RT), and transformer turns ratio used
TX2 TX1 TX0 Line Impedance(Ω) RT (Ω)
WR=0 WR=1
Transformer Ratio
WR=0 WR=1
1:2
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
1
1
120
120
120
120 / 75
75
75
0
0
0
0
1:2.4
1:1
1:1
1:2
1:2
1:2
1:1
1:2
1:2
10.4 15
8.4
0
0
6.5
8.4
1:2.4
1:2.4
1:2.4
1:1
1:2.4
1:2.4
12.1
0
0
9.1
12.1
75
75 / 120
After reset these bits are zero.
Table 2 - Transmit Pulse Amplitude (E1)
1.20
1.05
0.95
0.90
0.80
0.50
0.05
0
-0.05
-0.26
-0.45
Time, in unit intervals (UI)
NOTE: 1 Unit Interval = 648 nanoseconds
Figure 7 - Pulse Template (T1.403)(T1)
20
MITEL [ MITEL NETWORKS CORPORATION ]
