NI 5441 Specifications 30 ni.com
Pre-Filter
Offset Range
–1.0 to +1.0 Applied after
Pre-Filter Gain
Output Output = (User Data × Pre-Filter Gain) + Pre-Filter Offset
(–1 ≤ Output ≤ +1)
Pre-Filter
Output
FIR (Finite Impulse Response) Filter
Filter Length 95 Taps The FIR Filter
is used to pulse
shape the IQ
Data and to
compensate
for the CIC
Filter roll-off.
Coefficient
Width
17 bits (–1 to +1)
Filter
Symmetry
Symmetric
Interpolation
Range
2, 4, or 8
Coefficients Automatically generated by NI-FGEN (refer to FIR Filter
Types) or Custom Coefficients provided by the user
Specification Valu e Comments