Advance Information
MT9074
Peak to Peak
Jitter Amplitude
(log scale)
18UI
MT9074
Tolerance
1.5UI
0.2UI
Jitter Frequency
(log scale)
1.667Hz
20Hz
2.4kHz 18kHz 100kHz
Figure 4 - Input Jitter Tolerance as recommended by ETSI 300 011 (E1)
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)
RT
RT
Fuse
1:2
0.68uF
Tx
TTIP
Fuse
Fuse
TRING
RT: 2.4 Ω
+5V
1:1
RTIP
100 Ω
Fuse
RRING
Rx
Figure 5 - Analog Line Interface (T1)
9