Table 4-5: Output Swing Versus De-Emphasis (Ac Coupled) - Xilinx RocketIO X User Manual

Output Swing and Emphasis
The drive emphasis settings for supported single-ended output swing (Vos) and de-
emphasis levels (%, dB) when AC coupled are shown in
combinations are not supported and should not be used.

Table 4-5: Output Swing versus De-Emphasis (AC Coupled)

0 1 2
0 120mV
0%
0.0dB
1
2
3
4
5
6
T
X
E
7
M
P
H
L 8
E
V
E
9
L
10
11
12
13
14
15
RocketIO™ X Transceiver User Guide
UG035 (v1.5) November 22, 2004
3 4 5 6
180mV 240mV 300mV 360mV
0% 0% 0% 0%
0.0dB 0.0dB 0.0dB 0.0dB
210mV 270mV 330mV 390mV
29% 22% 18% 15%
-2.9dB -2.2dB -1.7dB -1.5dB
240mV 300mV 360mV 420mV
50% 40% 33% 29%
-6.0dB -4.4dB -3.5dB -2.9dB
330mV 390mV 450mV
55% 46% 40%
-6.8dB -5.4dB -4.4dB
360mV 420mV 480mV
67% 57% 50%
-9.5dB -7.4dB -6.0dB
450mV 510mV
67% 59%
-9.5dB -7.7dB
480mV
75%
-12.0dB
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TXDOWNLEVEL
7 8 9
420mV 480mV
0% 0%
0.0dB 0.0dB
450mV 510mV
13% 12%
-1.2dB -1.1dB
480mV
25%
-2.5dB
510mV
35%
-3.8dB
Table 4-5. The unused (grey
10 11 12 13
R
14 15
101