Rohde & Schwarz FSVA - Page 504

Instrument Functions
R&S
®
FSVA/FSV
504Operating Manual 1176.7510.02 ─ 09
Table 3-14: Calculation of the usable I/Q bandwidth for active digital input
Precondition Bandwith
95.0
ISR
SR
0.8 * SR
ISR
SR
95.0
0.76 * ISR
Unfiltered I/Q data input
The values in Table 3-14 apply for the default data processing using the decimation fil-
ter and resampler. If the filter is deactivated (see "No Filter" on page 446, the sample
rate is identical to the input sample rate. In this case, the usable I/Q bandwidth is not
restricted by the R&S FSVA/FSV.
The following table describes the dependencies for digital in- and output:
Table 3-15: Dependencies for digital in- and output
Type of Limit Precondition Range / Value
Input sample rate (ISR) 100 Hz … 10 GHz (*)
Minimum sample rate
(SR)
100 Hz (*)
Maximum sample rate
(SR)
Digital input
active
45 MHz (without R&S FSV-B70/R&S FSVA-B40) (*)
254 * ISR, max. 10 GHz (with R&S FSV-B70/R&S FSVA-B40)
(*)
Digital output
active
45 MHz (without R&S FSV-B70/R&S FSVA-B40)
100 MHz (with R&S FSV-B70/R&S FSVA-B40)
(*) Note the relationship between the sample rate and the input sample rate, which may restrict the value
ranges further:
ISR
min
= SR/254
ISR
max
= SR*2*1048576
Instrument Functions - R&S Digital I/Q Interface (Option R&S FSV-B17)