Rohde & Schwarz FSVA - Page 506

Instrument Functions
R&S
®
FSVA/FSV
506Operating Manual 1176.7510.02 ─ 09
Figure 3-37: Bandwidths depending on sample rate for active digital input
Table 3-17: Bandwidths depending on sample rate for active digital input (with R&S FSV-B70/
R&S FSVA-B40)
Examplary digital
input sample
rates
Possible output sample rates and the corresponding IQ bandwidths
Linear increase from the minimum
possible output sample rate up to
break point
Constant IQ bandwidth from break
point up to the maximum possible
output sample rate
minimum break point break point maximum
Minimum:
ISR =100 Hz
Not allowed
SR = 100 Hz
1)
BW = 0.76 * ISR
= 76 Hz
SR = 254 * ISR
= 25.64 kHz
BW = 0.76 * ISR
= 76 Hz
Example
ISR = 30 MHz
SR = 100 Hz
1)
BW = 0.8 * SR
= 80 Hz
SR = 0.95*ISR
= 28.5 MHz
BW = 0.8 * SR
= 22.8 MHz
SR = 0.95*ISR
= 28.5 MHz
BW = 0.76 * ISR
= 22.8 MHz
SR = 254 * ISR
= 7.62 GHz
BW = 0.76 * ISR
= 22.8 Hz
1)
max(ISR/(2*1048576), 100 Hz)
2)
min(254*ISR, 10GHz)
Instrument Functions - R&S Digital I/Q Interface (Option R&S FSV-B17)