PCI-5142 NI [National Instruments Corporation], PCI-5142 Datasheet - Page 27

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

© National Instruments Corporation
IQ Baseband Demodulation Performance (Typical)
GSM
Physical Layer
W-CDMA
Physical Layer
DVB
Physical Layer
20 MSymbols/s
64 QAM
1
2
3
4
5
6
the host PC/controller.
7
NI PXI-5421 arbitrary waveform generators.
Waveform Acquisition Times
Maximum Acquisition Time
Sample Rate = 100 MS/s,
OSP Disabled
Sample Rate = 1 MS/s,
Real Mode, OSP Enabled
Sample Rate = 100 kS/s,
Real Mode, OSP Enabled
This is a measurement of system performance. The IQ Baseband generation was implemented with two TClk synchronized
Vertical Range = 1 (V
Sample Rate = 1.25 MS/s, MSK modulation, 270.833 kSymbols/s, Gaussian, BT = 0.3
Sample Rate = 6.25 MS/s, QPSK modulation, 3.84 MSymbols/s, root raised cosine, alpha = 0.22
Sample Rate = 10 MS/s, 32 QAM modulation, 6.92 MSymbols/s, root raised cosine, alpha = 0.15
Sample Rate = 50 MS/s, 64 QAM modulation, 20 MSymbols/s, root raised cosine, alpha = 0.15
Demodulation, including resampling (sample rate conversion) and pulse shaping, done with the NI Modulation Toolkit in
Configuration
Specification
Modulation
Specification
1, 5, 6, 7
1, 2, 6, 7
1, 3, 6, 7
1, 4, 6, 7
pk-pk
), Input Impedance = 50 Ω, no analog filter
Modulation Error Ratio (MER)
Error Vector Magnitude (EVM)
Modulation Error Ratio (MER)
Error Vector Magnitude (EVM)
Modulation Error Ratio (MER)
Error Vector Magnitude (EVM)
Modulation Error Ratio (MER)
Error Vector Magnitude (EVM)
Measurement Type
0.336 s
33.6 s
5 min, 36 s
64 ΜΒ
27
Value
Value
1.34 s
2 min, 14 s
22 min, 22 s
256 ΜΒ
<0.8% rms
<0.9% rms
<0.9% rms
<1.4% rms
Value
41 dB
41 dB
40 dB
33 dB
NI PXI/PCI-5142 Specifications
For Complex
(IQ) mode, the
acquisition time
is halved.
Comments
Comments
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