MT9076B
Data Sheet
TTIP
0.47 uF RT
1:2.4
Tx
TRING
RTIP
RRING
RT
RT: refer to datasheet
1:1
100 Ω
120 Ω
75 Ω
Rx
Figure 5 - Analog Line Interface
Notes:
1) Protection circuitry (i.e., voltage clamps, line fuses, common mode choke etc.) depends on the
application and is not shown. For a reference design, refer to the evaluation board schematic.
2) The transformer shown is a Pulse Engineering T1144.
Name
Functional Description
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
0
0
0 to 133 feet/ 0 dB
0
0
1
133 to 266 feet
0
1
0
266 to 399 feet
0
1
1
399 to 533 feet
1
0
0
533 to 655 feet
1
0
1
-7.5 dB
1
1
0
-15 dB
1
1
1
-22.5 dB
After reset these bits are zero.
Table 1 - Transmit Line Build Out (T1)
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Zarlink Semiconductor Inc.