PCI-5142 NI [National Instruments Corporation], PCI-5142 Datasheet - Page 24

• Manufacturer Part Number: PCI-5142
• Description: 14-Bit 100 MS/s Digitizer with Onboard Signal Processing
• Manufacturer: NI [National Instruments Corporation]

NI PXI/PCI-5142 Specifications
OSP General
Number of Digital
Downconverters
(DDCs)
Data Processing
Modes
OSP Decimation
Range
Sample Rate Range
Bandwidth
Digital Gain and Offset
Digital Gain and
Offset Resolution
Digital Gain Range
Digital Offset Range
Specification
1
1. Real (I path only)
2. Complex (IQ)
1, 2, 4, 6, 8, 10
12 to 4,096 (Multiples of 4)
4,096 to 8,192 (Multiples of 8)
8,192 to 16,384 (Multiples of 16)
6.1 kS/s – 100 MS/s
(Real or Complex)
Real Flat Bandwidth
= 0.4 × Sample Rate
Complex Flat Bandwidth
= 0.8 × Sample Rate
18 bits
–1.5 to +1.5
| Values | <1 attenuate user data
(–0.4 × Vertical Range) to
(+0.4 × Vertical Range)
Clock Timebase
Internal Sample
Value
24
Sample Clock
Timebase/OSP
Decimation
External Sample
Clock Timebase
Complex mode is used
for both IQ baseband
decimation and
quadrature
downconversion.
OSP decimation protects
acquired data from
high-frequency aliasing
within the ADC Nyquist
zone, whereas non-OSP
decimation does not.
Non-OSP decimation
and OSP decimation are
mutually exclusive (that
is, they cannot be used at
the same time).
For sample rates less
than 6.1 kS/s, use an
external sample clock or
perform additional
software decimation.
Example: Complex
bandwidth is 40 MHz
with a Complex Sample
Rate of 50 MS/s.
Applied after Digital
Gain
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