User guide

Performance Specifications
20
PRBS Generator 10 Gb/s User Guide
3.2 N4970A PRBS Generator Specifications
Table 2. N4970A PRBS generator specification table
Parameter Specification
Data rate 0.5 to 12.5 Gb/s
1
External clock input rate 0.5 to 12.5 GHz
External clock input power required +10 dBm (2 V p-p) typical < 1.0 GHz
+3 dBm (890 mV p-p) typical ≥ 1.0 GHz
Internal clock rate Single frequency internal oscillator, specify when ordering
Default 10.0 GHz
Option 301 – 10.66423 GHz
Option 302 – 10.51875 GHz
Option 303 – 11.09573 GHz
Option 304 – 9.95328 GHz
Option 305 – 10.709225 GHz
Option 306 – 10.3125 GHz
Internal clock output power 600 mV p-p nominal
Divided clock output Clock rate/16
Divided clock output power 600 mV p-p nominal
PRBS patterns 2
n
– 1, n=7, 10, 15, 23, 31
Mark space density 1/2, 1/4, 1/8
Data output amplitude (single-ended)
2
> 300 mV p-p typical
> 750 mV p-p typical (Option 010)
Data output jitter 1.0 ps rms typical
2
Data output rise/fall time (20% to 80%) < 25 ps typical
Data output external interface Differential. AC coupled, 50 Ω nominal, female SMA
1
With an external clock
2
At the internal clock rate