3
2.5
155.52 MBd
311.04 MBd
622.08 MBd
2
650.00 MBd
1.5
1
0.5
0
-0.5
-1
-3.5
-2.5
-1.5
-0.5
0.5
1.5
2.5
3.5
Clock to Data Offset Delay in nsec (0 = Data Eye Center)
Figure 2. HFBR-5208M Relative Input Optical Power as a function of sampling time position. Normalized to center of Baud interval at 622 MBd.
Test Conditions +25°C, 5.25 V, PRBS 223-1, optical tr/tf = 0.9 ns with 3 m of 62.5 µm MMF.
2.5
2
HFBR-5208M
HFCT-5208M
1.5
1
0.5
0
-0.5
-1
-1.5
20
105
190
275
360
445
530
615
700
Module Data Stream Serial Data Rate in MBd
Figure 3. Relative Input Optical Power as a function of data rate normalized to center of Baud interval at 622 MBd.
Test Conditions +25°C, 5.25 V, PRBS 223-1, optical tr/tf = 0.9 ns with 3 m of MMF or SMF.
3