Agilent Technologies J-BERT N4903B Manual de usuario descargar pdf (Pagina 6)

Agilent N4916B Specifications

Figure 7. Front panel view of N4916B

De-emphasis signal converter

Data rate 660 Mb/s to 10.5 Gb/s

Output format NRZ

Pre-cursor 0 to +12.0 dB/0.1 dB resolution. Polarity as depicted, dB sum

of all cursors. Cannot exceed max output swing and window.

Post-cursor 1 0 to –12.0 dB/0.1 dB resolution

Post-cursor 2 0 to –8.0 dB/0.1 dB resolution

Clock input, data input 50 Ω single ended, DC coupled

De-emphasis output 50 Ω differential, DC coupled. Terminate unused output.

Output amplitude 100 mV to 700 mV single ended; 200 mV to 1400 mV differential

Output voltage window ± 2 V

Coupling DC, accepts unbalanced patterns

External termination voltage ± 2 V

Max. external voltages ± 2 V

Output transition times < 40 ps typical (20% – 80%)

Jitter added < 300 fs rms typical (0101 pattern)

Jitter transfer Transparent to clock jitter. Data and clock must carry the same amount of jitter and need to be in phase.

Input voltage data input 1.26 Vpp, offset –0.79 V

Input voltage clock input 0.3 Vpp, offset 0 V

Connectors SMA female

Clock multiplier

Input frequency range 1 to 7.5 GHz, Duty cycle 45-55%

Multiplier factors 1, 2

Input 50 Ω single ended, AC coupled

Input voltage swing 100 mV to 1 V differential

Input termination voltage ± 2 V

Output 50 Ω differential, AC coupled.

Terminate unused output.

Output voltage swing > 500 mV differential

Output transition time < 30 ps typical (20% – 80%)

Jitter added < 500 fs rms typical

Connector SMA female

Figure 8. Rear panel view of N4916B

Figure 9. Definition of nominal output amplitude and

de‑emphasis amplitude

1 2 3 4 5 6 7 8

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Agilent Technologies J-BERT N4903B Manual de usuario Pagina 6