7.3.2 Linear Equalization
With a linear equalizer, the TUSB1002 can electrically shorten a particular channel allowing for longer run lengths.
With a TUSB1002, the 28 in trace can be made to have similar insertion loss as the 12 inch trace.
The receiver equalization level for each channel is determined by the state of the CHx_EQ1 and CHx_EQ2 pins, where x = 1 or 2.
Table 2. EQ Configuration Options for 1200mV Linearity 0 dB DC Gain Setting
EQ SETTING # |
CHx_EQ2 PIN LEVEL |
CHx_EQ1 PIN LEVEL |
EQ GAIN at 2.5GHz / 5 GHz (dB) |
1 |
0 |
0 |
1.9 / 5.5 |
2 |
0 |
R |
2.8 / 7.1 |
3 |
0 |
F |
3.5 / 8.2 |
4 |
0 |
1 |
4.4 / 9.3 |
5 |
R |
0 |
5.0 / 10.2 |
6 |
R |
R |
5.8 / 11.1 |
7 |
R |
F |
6.4 / 11.8 |
8 |
R |
1 |
7.1 / 12.6 |
9 |
F |
0 |
7.6 / 13.1 |
10 |
F |
R |
8.2 / 13.8 |
11 |
F |
F |
8.7 / 14.3 |
12 |
F |
1 |
9.2 / 14.8 |
13 |
1 |
0 |
9.6 / 15.2 |
14 |
1 |
R |
10.1 / 15.6 |
15 |
1 |
F |
10.4 / 16.0 |
16 |
1 |
1 |
10.6 / 16.3 |