NI NIPXIE-5663 Vector signal analyzer Datasheet

Vector Signal Analyzer
NI PXIe-5663, NI PXIe-5663E
◾◾ 10 MHz to 6.6 GHz frequency range
◾◾ 50 MHz instantaneous bandwidth (3 dB)
◾◾ ±0.35 dB typical flatness within
20 MHz bandwidth
◾◾ ±0.65 dB typical amplitude accuracy
◾◾ <-158 dBm/Hz typical display averaged
noise level at 1 GHz
◾◾ 80 dB typical SFDR
◾◾ 112 dBc/Hz typical phase noise
at 10 kHz offset at 1 GHz
◾◾ 16-bit ADC
◾◾ Full bandwidth streaming
to disk (75 MS/s)
◾◾ RF List Mode support for NI PXIe-5663E
Operating System
◾◾ Windows 7/Vista/XP/2000
Included Software
◾◾ NI Spectral Measurements Toolkit
◾◾ NI Modulation Toolkit
◾◾ NI-RFSA driver
Programming API
◾◾ LabVIEW
◾◾ LabVIEW Real-Time
◾◾ LabWindows™/CVI
◾◾ C++/.NET
Overview
NI PXIe-5663 and PXIe-5663E 6.6 GHz RF vector signal analyzers offer wide
NI PXIe-5601
NI PXIe-5622
ADC
instantaneous bandwidth optimized for automated test. Combined with highperformance PXI controllers and the high-speed PCI Express data bus, these
modules can perform common automated measurements significantly faster
than traditional instruments. You can use an NI PXIe-5663/5663E as either
NI PXI-5652
a spectrum analyzer or vector signal analyzer with NI LabVIEW or
LabWindows/CVI software. In addition, you can use both the NI PXIe-5663
and PXI-5663E modules with the NI Modulation Toolkit for LabVIEW to analyze
custom and standard modulation formats.
When combined with NI or third-party analysis toolkits, the NI PXIe-5663/5663E
can perform measurements for a broad range of communications standards such
as GSM, EDGE, WCDMA, WiMAX, LTE, Bluetooth, WLAN, DVB-C/H/T, ATSC,
and MediaFLO. Because all measurements are software-defined, you can simply
reconfigure the measurements using standard specific toolkits. With these
toolkits, the NI PXIe-5663/5663E modules provide a low-cost solution to highperformance RF measurements.
Basic Architecture
Figure 1. Block Diagram of an NI PXIe-5663
As illustrated in Figure 1, the NI PXIe-5601 RF downconverter module
downconverts an RF signal to an intermediate frequency (IF). The local oscillator
(LO) source is an NI PXI-565x RF continuous wave (CW) source, which uses a
voltage-controlled oscillator (VCO) architecture for fast-frequency tuning speeds.
Using a VCO, the NI PXIe-5663 is able to retune and measure signals in 11 ms
or less. The NI PXIe-5622, which is used as an IF digitizer, features a 16-bit,
150 MS/s analog-to-digital converter (ADC).
The NI PXIe-5622 is based on a common synchronization architecture found in
many NI PXI modular instruments. Thus, you can share timing and trigger signals
As single-stage RF vector signal analyzers, the NI PXIe-5663/5663E modules
between the NI PXIe-5663 and other PXI modular instruments.
are ideally suited for automated RF measurements when directly cabled to the
Enhanced Architecture
device under test (DUT). You can use an NI PXIe-5663/5663E to perform fast and
accurate RF measurements in design validation and manufacturing
test applications.
The NI PXIe-5663E (E for enhanced) provides additional performance and
features including RF List Mode support and configurable loop bandwidth for
decreased tuning times. Like the NI PXIe-5663, the NI PXIe-5663E comprises
three modular instruments. The enhanced NI PXIe-5601 RF downconverter
module downconverts an RF signal to an IF signal, which is digitized with the
Vector Signal Analyzer
enhanced NI PXIe-5622, a 16-bit, 150 MS/s ADC module. You downconvert the
PXI Controller
NI PXIe-8130
CCDF (1M sample)
488 ms
330 ms
EVM
39.7 ms
28.3 ms
bandwidth for the VCO of the NI PXIe-5652. By using a wide-loop bandwidth,
ACP
8.8 ms
8.2 ms
you increase tuning time at the expense of additional phase noise; if you require
OBW
9.8 ms
8.9 ms
signal from RF by using an NI PXIe-565x RF CW source as an LO.
With the enhanced NI PXIe-5663E, you can configure a wide- or narrow-loop
lower phase noise over faster tuning times for a particular measurement, you
can specify a narrow phase-locked loop (PLL) bandwidth for best performance.
You can achieve tuning times of less than 450 µs to under 0.1 ppm of the final
frequency when using the wide-loop bandwidth configuration.
Fast Measurement Speed
Using software-defined measurements in LabVIEW with an NI PXIe-5663/5663E,
you can perform common spectral and modulation measurements up to 30 times
faster than traditional instruments.
You can also perform common spectrum analysis measurements quickly due
to the processing power of multicore CPUs. For example, you can perform a
50 MHz spectrum sweep in 6 ms with an NI PXIe-8106 embedded controller
(30 kHz RBW). While actual performance is system-dependent, Figure 2 illustrates
the relationship between measurement time and resolution bandwidth (RBW)
for a 50 MHz spectrum.
NI PXIe-8106
Table 1. Typical Measurement Times for the NI PXIe-8130 and PXIe-8106
Embedded Controllers
For the data in Table 1, the EVM measurement was performed on 2,600
symbols, with modulation settings configured to QPSK, a symbol rate of 3.84 MS/s,
and a root raised cosine filter with an alpha of 0.22. The adjacent channel
power measurement was performed on both the lower and upper adjacent and
alternate channels. A channel bandwidth of 3.84 MHz was used, with channel
spacing set to 5 MHz.
As the results above illustrate, an NI PXIe-5663/5663E combined with a
multicore embedded PXI Express controller is able to perform measurements
significantly faster than traditional instrumentation. In fact, you can perform
most measurements up to 30 times faster than with traditional instruments.
RF List Mode
The NI PXIe-5663E provides RF List Mode support for fast and deterministic
RF configuration changes. You supply a configuration list, and the RF modules
proceed through the list without additional interaction with the host system and
driver. This makes the configuration changes deterministic. Figure 3 illustrates
this determinism with a single tone at 1 GHz stepping through six power levels
in 7 dB steps starting with -10 dBm and ending with -45 dBm and a 500 µs dwell
time specified for each step.
Figure 2. Measurement Time versus Resolution Bandwidth for a 50 MHz Spectrum
Note that for spans of less than 50 MHz – the NI PXIe-5663/5663E
instantaneous bandwidth – spectrum sweep time is completely independent of
the center frequency you choose.
In addition to spectrum sweeps, you can perform standard-specific modulation
and spectral measurements significantly faster than traditional RF spectrum
analyzers. Table 1 shows the nominal measurement times for measurements
such as complementary cumulative distribution function (CCDF), error vector
magnitude (EVM), adjacent channel power (ACP), and occupied bandwidth (OBW).
Figure 3. Deterministic 500 µs Power Steps Using the NI PXIe-5663E and RF List Mode
You can use the NI PXIe-5663E in both open- and closed-loop scenarios
to specify the source for the configuration trigger that advances from one
configuration to the next. In an open-loop situation, the NI PXIe-5663E advances
through the list based on a user-defined time specification for each step. The
closed-loop scenario relies on an external trigger that may be provided by the
DUT to advance through the RF configuration list.
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2
Vector Signal Analyzer
RF Record and Playback
You can combine an NI PXIe-5663/5663E RF vector signal analyzer with a PXI RF
vector signal generator for record and playback applications. In this application,
you use an NI PXIe-5663/5663E to continuously record an RF signal as a file on a
redundant array of inexpensive disks (RAID) volume. Then you use an RF vector
signal generator to stream the recorded waveform from disk. With a 2 TB RAID
volume, an NI PXIe-5663/5663E can be used to stream 50 MHz of RF bandwidth
continuously to disk for more than 1.5 hours.
Because of the vector signal analyzer’s PCI Express data bus, you can also use
multiple analyzers to stream data to disk. With more than 1 GB/s of total system
bandwidth, you can stream more than 100 MHz continuously to disk using
multiple analyzers.
Phase-Coherent Analysis
The flexibility of the NI PXIe-5663/5663E modules enables multiple instruments
to share a common start trigger, a reference clock, and even an LO. As a result,
Figure 5. ACP Measurement of a QPSK Signal
This example uses a 3.84 MS/s symbol rate and a root raised cosine filter
you can synchronize at least four NI PXIe-5663/5663E RF vector signal analyzers
with an alpha of 0.22. A filter length of 128 symbols was implemented. The
for phase-coherent acquisition. A block diagram of two synchronized analyzers is
stimulus used in this measurement was programmed to an RF power level of
shown in Figure 4.
-5 dBm. As Figure 5 shows, you can use an NI PXIe-5663/5663E to measure up
NI PXIe-5601
NI PXIe-5622
ADC
NI PXIe-5601
NI PXIe-5622
to -65 dBc of adjacent channel rejection with the described settings.
In addition, with the high dynamic range and phase noise performance of the
NI PXIe-5663/5663E modules, you can analyze higher-order modulation schemes
such as 256-QAM. A loopback configuration with NI PXIe-5673/5673E RF vector
signal generators and an NI PXIe-5663/5663E yields a nominal EVM (RMS)
measurement of 0.5 percent. The constellation plot is shown in Figure 6.
ADC
NI PXI-5652
Figure 4. Simplified Block Diagram of Cascaded NI PXIe-5663 RF Vector Signal Analyzers
As shown in Figure 4, the NI PXIe-5601 RF downconverter both accepts and
distributes a buffered LO. In this configuration, you can synchronize up to four
analyzer channels without significant degradation of RF performance.
High-Performance RF Measurements
Using a 16-bit ADC with a high-performance RF front end, NI PXIe-5663/5663E
modules offer up to 80 dB of spurious-free dynamic range (SFDR). Thus, you can
perform spectrum analysis measurements that require high dynamic range. In
Figure 5, an ACP measurement of a QPSK modulated signal is shown.
Figure 6. Constellation Plot of 256-QAM
The settings used in Figure 6 include a center frequency of 1 GHz, a 5.36 MS/s
symbol rate, and a 0.12 root raised cosine filter alpha. The test stimulus was
generated with the NI PXIe-5673 using the same symbol rate and filter alpha
settings at an RF power level at -10 dBm.
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3
Vector Signal Analyzer
Flexible Software
Programmed with the NI-RFSA instrument driver, NI PXIe-5663/5663E RF vector
Ordering Information
signal analyzers can be used in a variety of applications. The driver enables both
NI PXIe-5663E
high-level and low-level control of a variety of instrument settings. Figure 7
64 MB onboard memory.................................................................781260-01
features a simple LabVIEW example showing basic spectrum acquisition.
256 MB onboard memory...............................................................781260-02
NI PXIe-5663
64 MB onboard memory.................................................................780415-01
256 MB onboard memory...............................................................780415-02
Phase Coherent VSAs
NI PXIe-5663/5663E VSA channel extension kit............................780486-01
Figure 7. LabVIEW Example for Spectrum Sweep
The NI-RFSA driver includes an out-of-the-box soft front panel, which
is shown in Figure 8.
NI PXIe-5663E two-channel VSA....................................................781339-02
NI PXIe-5663E three-channel VSA..................................................781339-03
NI PXIe-5663E four-channel VSA....................................................781339-04
BUY NOW
For complete product specifications, pricing, and accessory information,
call 800 813 3693 (U.S.) or go to ni.com/pxi.
Figure 8. NI-RFSA Soft Front Panel
The NI PXIe-5663/5663E is shipped with two NI toolkits in addition
to the NI-RFSA driver, the NI Modulation Toolkit, and the NI Spectral
Measurements Toolkit.
With the Spectral Measurements Toolkit for LabVIEW and LabWindows/CVI,
you can perform common measurements such as power spectrum, peak power
and frequency, in-band power, adjacent channel power, and occupied bandwidth.
In addition, the NI Modulation Toolkit for LabVIEW provides tools for vector
signal analyzers. With this toolkit, you can perform measurements on a wide
variety of modulated signals including schemes such as AM, FM, ASK, FSK, PSK,
CPM, MSK, and QAM. In addition, the toolkit computes modulation accuracy
measurements such as EVM, MER, rho, and others.
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4
Vector Signal Analyzer
Specifications
–80.0 –
–85.0 –
–90.0 –
Frequency
Frequency range ...................................
10 MHz to 6.6 GHz
Tuning resolution....................................
533 nHz
1
An NI 5663 is operational to 1 MHz. The maximum tuned frequency = 6.6 GHz – ½ (frequency span).
Bandwidth
Single Sideband Phase Noise (dBc/Hz)
–95.0 –
1
–100.0 –
–105.0 –
–110.0 –
–115.0 –
–120.0 –
–125.0 –
–130.0 –
Equalized Bandwidth
20
330 MHz to 6.6 GHz
50
10.000k
–
120 MHz to <330 MHz
1.000k
–
10
–
10 MHz to <120 MHz
–140.0 –
100.000
–
Equalized Bandwidth (MHz)
–
Tuned Frequency
–
–135.0 –
100.000k
1.000M
10.000M
Frequency Offset (Hz)
Figure 2. Typical Phase Noise at 2.4 GHz
–70.0 –
Note: Using automatic calibration correction through the NI-RFSA instrument driver.
–75.0 –
–80.0 –
3 dB bandwidth......................................
Fully adjustable (<1 Hz to 10 MHz)
Selectivity
Window
60 dB: 3 dB Ratio
Flat Top
2.5, maximum
7-term Blackman-Harris
4.1, maximum
Single Sideband Phase Noise (dBc/Hz)
–85.0 –
Resolution Bandwidth
–90.0 –
–95.0 –
–100.0 –
–105.0 –
–110.0 –
–115.0 –
–120.0 –
–125.0 –
–130.0 –
–
10.000k
–
1.000k
–
–
–140.0 –
100.000
–
–135.0 –
–
Note: The NI-RFSA instrument driver also supports additional window types.
100.000k
1.000M
10.000M
Frequency Offset (Hz)
Figure 3. Typical Phase Noise at 5.8 GHz
Spectral Purity
Phase Noise
Single Sideband (SSB) Phase Noise
Tuned Frequency
Noise Density
100 MHz
<-125 dBc/Hz
500 MHz
<-112 dBc/Hz
1 GHz
<-105 dBc/Hz
2 GHz
<-98 dBc/Hz
3 GHz
<-95 dBc/Hz
4 GHz
<-93 dBc/Hz
5 GHz
<-90 dBc/Hz
6.6 GHz
<-90 dBc/Hz
Note: 10 kHz offset; measured using an NI 5652 with an internal reference clock.
–80.0 –
Absolute Accuracy
Accuracy
Frequency
23 °C ± 5 °C
10 MHz to <120 MHz
±2.2 dB (±1.4 dB, typical)
±2.3 dB (±1.5 dB, typical)
120 MHz to <400 MHz
±1.7 dB (±0.65 dB, typical)
±1.8 dB (±0.75 dB, typical)
400 MHz to <3.0 GHz
±1.6 dB (±0.65 dB, typical)
±1.8 dB (±0.75 dB, typical)
3.0 GHz to <5.5 GHz
±1.7 dB (±0.65 dB, typical)
±1.8 dB (±0.75 dB, typical)
5.5 GHz to 6.6 GHz
±1.6 dB (±0.65 dB, typical)
±2.0 dB (±1.0 dB, typical)
Note: RF attenuation ≥8 dB; signal-to-noise ratio ≥20 dB.
1
Using automatic calibration correction of the NI-RFSA instrument driver, within ±5 °C
of a self-calibration by the niRFSA Self Cal VI or the niRFSA_SelfCal function.
Linearity
Third-Order Intermodulation Distortion (Input IP3 (IIP3))
–85.0 –
(Typical)
–90.0 –
–95.0 –
Single Sideband Phase Noise (dBc/Hz)
0 °C to 55 °C1
-20 dBm Reference Level
–100.0 –
–105.0 –
–110.0 –
–115.0 –
–120.0 –
–125.0 –
–130.0 –
–
10.000k
–
–
1.000k
–
–
–
Input IP3
10 MHz to <30 MHz
≥5 dBm
30 MHz to <330 MHz
≥7 dBm
330 MHz to <3.0 GHz
≥12 dBm
3.0 GHz to 6.6 GHz
≥9 dBm
Note: Two - 24 dBm input tones = 200 kHz apart.
–135.0 –
–140.0 –
100.000
Frequency Range
100.000k
1.000M
10.000M
Frequency Offset (Hz)
Figure 1. Typical Phase Noise at 1 GHz
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5
Vector Signal Analyzer
IF Flatness
0 dBm Reference Level
Frequency Range
Input IP3
10 MHz to <30 MHz
≥21 dBm
30 MHz to <330 MHz
≥18 dBm
330 MHz to <3.0 GHz
≥21 dBm
3.0 GHz to 6.6 GHz
≥21 dBm
(Typical)
IF Amplitude Flatness, 23 °C ± 5 °C
Tuned Frequency
10 MHz to <75 MHz
Note: Two - 4 dBm input tones = 200 kHz apart.
75 MHz to <120 MHz
Dynamic Range1
Dynamic Range (Noise and Third-Order Intermodulation
Distortion (IMD3))
120 MHz to <140 MHz
(Nominal)
140 MHz to <330 MHz
10 –
Band 1 = 30 MHz to 330 MHz
Band 2 = 330 MHz to 3.0 GHz
Band 3 = 3.0 GHz to 6.6 GHz
–10 –
330 MHz to <6.6 GHz
–50 –
Digitizer
–70 –
IMD3
D3
–90 –
Noise
63
I 56
nd
Ba
N
1 IM
NI
–110 –
and
3B
566
D3
3 IM
–30
–20
–10
–
–
–
–
Tuned Frequency
–150 –
–40
0
Input Power (dBm, per tone)
Figure 4. NI 5663 Vector Signal Analyzer Nominal Dynamic Range, 0 dBm Reference Level
10 MHz to <75 MHz
75 MHz to <120 MHz
10 –
Band 1 = 30 MHz to 330 MHz
Band 2 = 330 MHz to 3.0 GHz
Band 3 = 3.0 GHz to 6.6 GHz
–10 –
120 MHz to <140 MHz
Noise (dBc/Hz) & IMD3 (dBc)
–30 –
–50 –
140 MHz to <330 MHz
Digitizer
–70 –
IMD3
Noise
–90 –
NI 5663 Band 2 IMD3
–110
–
3
NI
–
–
–60
–
–150
nd
Ba
1 IM
–
63
56
NI
nd
Ba
–
–
3
566
–
–130
330 MHz to <6.6 GHz
D3
D
3 IM
5 MHz
±0.25 dB
10 MHz
±0.3 dB
5 MHz
±0.4 dB
10 MHz
±0.6 dB
5 MHz
±0.45 dB
10 MHz
±0.65 dB
20 MHz
±0.9 dB
5 MHz
±0.2 dB
10 MHz
±0.4 dB
20 MHz
±0.5 dB
10 MHz
±0.2 dB
20 MHz
±0.35 dB
50 MHz
±0.60 dB
IF Amplitude Flatness, 0 to 55 °C
NI 5663 Band 2 IMD3
–130 –
Amplitude Flatness
Notes: RF attenuation ≥8 dB, 18 to 28 °C, with calibration correction; bandwidth centered about
tuned frequency. Typical represents the worst ripple expected for any reference level setting across
the specified frequency range.
–
Noise (dBc/Hz) & IMD3 (dBc)
–30 –
Bandwidth
–50
–40
–30
–20
Input Power (dBm, per tone)
Bandwidth
Amplitude Flatness
5 MHz
±0.3 dB
10 MHz
±0.45 dB
5 MHz
±0.35 dB
10 MHz
±0.6 dB
5 MHz
±0.55 dB
10 MHz
±0.85 dB
20 MHz
±1.1 dB
5 MHz
±0.35 dB
10 MHz
±0.8 dB
20 MHz
±0.8 dB
10 MHz
±0.25 dB
20 MHz
±0.4 dB
50 MHz
±0.7 dB
Notes: RF attenuation ≥8 dB, 0 to 55 °C, with calibration correction; bandwidth about tuned frequency.
Typical represents the worst ripple expected for any reference level setting across the specified
frequency range.
Figure 5. NI 5663 Vector Signal Analyzer Nominal Dynamic Range, -20 dBm Reference Level
Reference level allows 10 dB headroom for single-tone input signals before digitizer clipping occurs.
1
The dynamic range plots in the two preceding figures show nominal
performance with NI-RFSA automatic coupled settings that are optimized
for noise performance. If you use the RF attenuation manual settings, IMD3
performance can improve with minimal degradation in noise floor, thus
increasing the effective SFDR in the power per tone signal range of 10 to 0 dB
below reference level.
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6
Vector Signal Analyzer
Error Vector Magnitude (EVM) and Modulation
Error Ratio (MER)
(Nominal)
Data length in the following three tables is 1,250 symbols pseudorandom bit
sequence (PRBS) at -30 dBm power level. These results were obtained using the
NI 5663 onboard clock (the NI 5652 LO source onboard clock) and do not include
software equalization using the NI Modulation Toolkit. Results are the composite
effect of both an NI 5663 vector signal analyzer and an NI 5673 RF vector
signal generator.
825 MHz Carrier Frequency
QAM Order
M=4
M = 16
M = 64
M = 256
Symbol Rate (kS/s)
·RRC
EVM (% RMS)
MER (dB)
160
0.25
0.3
52
800
0.25
0.4
49
4,090
0.22
0.5
46
17,600
0.25
0.7
41
32,000
0.25
1.0
37
5,360
0.15
0.4
44
6,952
0.15
0.5
43
40,990
0.22
1.1
35
6,952
0.15
0.4
43
3.4 GHz Carrier Frequency
QAM Order
M=4
M = 16
M = 64
Symbol Rate (kS/s)
·RRC
EVM (% RMS)
MER (dB)
160
0.25
0.65
44
800
0.25
0.65
44
4,090
0.22
0.74
43
17,600
0.25
1.13
36
32,000
0.25
1.94
32
5,360
0.15
0.59
41
6,952
0.15
0.66
40
40,990
0.22
2.15
30
M = 256
6,952
0.15
0.64
40
QAM Order
Symbol Rate (kS/s)
EVM (% RMS)
MER (dB)
5.8 GHz Carrier Frequency
M=4
M = 16
M = 64
M = 256
·RRC
160
0.25
0.89
41
800
0.25
0.85
41
4,090
0.22
1.04
40
17,600
0.25
1.49
34
32,000
0.25
2.00
31
5,360
0.15
0.83
38
6,952
0.15
0.90
37
40,990
0.22
2.06
30
6,952
0.15
1.00
36
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