Home Support NI Product Manuals PXI Waveform Generator Manual

Table Of Contents

PXIe-5450 Specifications

Download Manual | Offline Viewer Required
Version:
    Last Modified: May 18, 2017

    These specifications apply to the 128 MB and 512 MB PXIe-5450.

    spd-note-hot
    Hot Surface  

    If the PXIe-5450 has been in use, it may exceed safe handling temperatures and cause burns. Allow the PXIe-5450 to cool before removing it from the chassis.

    spd-note-caution
    Caution  

    The outputs of this sensitive test and measurement product are not protected for electromagnetic interference for functional reasons. As a result, this product may experience reduced accuracy or other temporary performance degradation when cables are attached in an environment with electromagnetic interference present.

    Definitions

    Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

    Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

    • Typical specifications describe the expected performance met by a majority of the models.
    • Nominal specifications describe parameters and attributes that may be useful in operation.

    Specifications are Nominal unless otherwise noted.

    Conditions

    Specifications are valid under the following conditions unless otherwise noted.

    • Signals terminated with 50 Ω to ground
    • Direct path set to 0.5 Vpk differential (gain = 0.5, 1 Vpk-pk differential)
    • Sample clock set to 400 MS/s
    • Onboard Sample clock with no Reference clock
    • 0 °C to 55 °C ambient temperature

    Warranted specifications are valid under the following conditions unless otherwise noted.

    • 15 minutes warm-up time at ambient temperature
    • Calibration cycle maintained
    • Chassis fan speed set to High
    • NI-FGEN instrument driver used
    • NI-FGEN instrument driver self-calibration performed after instrument is stable

    Typical specifications are valid under the following conditions unless otherwise noted:

    • Over ambient temperature ranges of 23 ±5 °C with a 90% confidence level, based on measurements taken during development or production

    Analog Outputs

    CH 0+/–, CH 1+/– (Analog Outputs, Front Panel Connectors)

    Number of channels

    2

    Output type

    Differential

    Output paths

    Direct path

    DAC resolution

    16 bits

    Amplitude and Offset

    Amplitude resolution

    4 digits, <0.0025% (0.0002 dB of amplitude range)

    Table 1. Differential Full Scale Amplitude Range [1]
    Flatness Correction State Load Amplitude (Vpk-pk)[2]
    Minimum Value Maximum Value
    Disabled 50 Ω 0.708 1.00
    1 kΩ 1.35 1.90
    Open 1.42 2.00
    Enabled 50 Ω 0.567 0.8
    1 kΩ 1.08 1.52
    Open 1.14 1.6

    Accuracy

    Accuracy

    DC Accuracy[3]
    Absolute gain error

    Within ±5 °C of Self-Cal temperature

    ±0.2% of differential output range[4]

    Outside ±5 °C of Self-Cal temperature

    + 0.030%/°C

    + 0.015%/°C, typical

    Absolute Differential Offset

    ±1 mV (0 °C to 55 °C)

    Absolute common mode offset[5]

    ±350 µV (0 °C to 55 °C)

    Channel-to-channel relative gain error

    Within ±5 °C of Self-Cal temperature

    ±0.08% of differential output range[4]

    Outside ±5 °C of Self-Cal temperature

    + 0.010%/°C

    + 0.005%/°C, typical

    AC Amplitude Accuracy[6]
    Absolute AC amplitude accuracy

    within ±5 °C of Self-Cal temperature

    ±0.5% of differential output range

    Channel-to-Channel, relative AC amplitude accuracy

    within ±5 °C of Self-Cal temperature

    ±0.2% of differential output range

    ±0.07% of differential output range, typical

    Channel-to-channel timing alignment accuracy[7]

    35 ps

    25 ps, typical

    Output Characteristics

    Output impedance

    50 Ω nominal, per connector[8]
    Return loss (differential), nominal
    Single-ended direct path

    5 MHz to 60 MHz

    26 dB

    60 MHz to 145 MHz

    15 dB
    Differential direct path

    Up to 20 MHz

    35 dB

    Up to 60 MHz

    22 dB

    Up to 145 MHz

    12 dB

    Load impedance compensation

    Output amplitude is compensated for user-specified load impedance to ground. Performed in software.

    Output coupling

    DC

    Output enable

    Software-selectable. When disabled, output is terminated with a 50 Ω, 1 W resistor.

    Maximum output overload[9]

    ±8 V from a 50 Ω source

    Waveform summing

    The output terminals support waveform summing, which means the outputs of multiple PXIe-5450 signal generators can be connected together.[10]

    Frequency Response

    Analog bandwidth, typical[11]

    Baseband

    145 MHz for each I and Q output

    Complex baseband

    290 MHz when used with external I/Q modulator

    Analog filter

    4-pole filter for image suppression

    Table 2. Passband Flatness [12][15],[13]
    Passband Flatness Flatness Correction Disabled Flatness Correction Enabled[14],[15]
    0 MHz to 60 MHz [15],[16] 0.5 dB, typical 0.24 dB

    0.13 dB, typical

    60 MHz[15],[16] to 120 MHz [15],[17] 1.9 dB, typical 0.34 dB

    0.19 dB, typical

    Table 3. Passband Flatness [18]
    Passband Flatness Flatness Correction Disabled Flatness Correction Enabled[14], [15]
    Channel-to-Channel Passband Flatness Matching 0 MHz to 60 MHz [15],[16] 0.05 dB, typical 0.03 dB, typical
    Channel-to-Channel Passband Flatness Matching 60 MHz[15],[16] to 120 MHz [15],[17] 0.18 dB, typical 0.04 dB, typical
    Figure 1. Amplitude Response with Flatness Correction Enabled, 400 MS/s, Differential, Referenced to 50 kHz, Typical
    Figure 2. Amplitude Response, Flatness Correction Enabled, 400 MS/s, Differential, Referenced to 50 kHz, Typical
    Figure 3. Characteristic Frequency Response of Image Suppression Filter, Typical
    spd-note-note
    Note  

    Sinc response due to DAC sampling is not included in the previous figure.

    Spectral Characteristics

    Table 4. Nominal Spurious Free Dynamic Range (SFDR) at 1 MHz [19]
    Frequency Range SFDR Without Harmonics (dB) SFDR With Harmonics (dB)
    DC to 7 MHz 98 88
    DC to 200 MHz 84 75
    Table 5. SFDR with Harmonics [20]
    Frequency (MHz) SFDR (dB)
    10 70 (74)[21]
    60 68 (70)[21]
    100 62
    120 62
    160 62
    Table 6. SFDR without Harmonics [22]
    Frequency (MHz) SFDR (dB)
    10 70 (74)[21]
    60 68 (73)[21]
    100 64
    120 62
    160 62
    Table 7. Out-of-Band Performance, Nominal [23]
    In-Band Tone Frequency (MHz) Out of Band Spur Level (dBm)
    0 to 20 <–80 dBm
    20 to 50 <–65 dBm
    Channel-to-Channel Crosstalk

    0 MHz to 200 MHz

    <80 dBc, nominal

    0 MHz to 150 MHz

    <90 dBc, nominal

    Table 8. Total Harmonic Distortion (THD), Typical [24]
    Frequency (MHz) THD (dBc)
    10 -75
    20 -70
    40 -68
    80 -68
    100 -68
    120 -78
    160 -83
    Table 9. Intermodulation Distortion (IMD 3), Typical [25]
    Frequency (MHz) IMD (dBc)
    10 -84
    20 -81
    40 -75
    80 -71
    100 -68
    120 -68
    160 -66
    Table 10. Average Noise Density [26]
    Amplitude Range Average Noise Density
    Vpk-pk dBm dBm/Hz dBFS/Hz
    1 4.0 2.24 -160 -164
    Figure 4. Total Harmonic Distortion, Typical
    Figure 5. Intermodulation Distortion, 200 kHz Separation, Typical
    Figure 6. Intermodulation Distortion, 1 MHz Separation, 20 MHz Tone, 400 MS/s, – 7 dBFS, Typical
    Figure 7. 10.000 MHz Single-Tone Spectrum, 400 MS/s, –1 dBFS, Typical
    Figure 8. 10.100 MHz Single-Tone Spectrum, 400 MS/s, –1 dBFS, Typical

    Output Phase Noise and Jitter

    Table 11. Output Phase Noise and Jitter [27], Typical
    Sample Clock Source Output Freq. (MHz) System Phase Noise Density[28] (dBc/Hz) System Output Integrated Jitter[28]
    100 Hz 1 kHz 10 kHz 100 kHz 1 MHz
    Internal, High Resolution Clock, 400 MS/s 10 <-121 <-137 <-146 <-152 <-153 <350 fs
    100 <-101 <-119 <-126 <-136 <-141 <350 fs
    CLK IN External 10 MHz Reference Clock, 400 MS/s 10 <-122 <-135 <-146 <-152 <-153 <350 fs
    100 <-105 <-115 <-126 <-136 <-141 <350 fs
    Figure 9. Phase Noise on a Representative Module, 100 MHz Sine Wave, 400 MS/s Internal Clock Sample Rate, Chassis Fans Low, Shown With and Without a Reference Clock
    Figure 10. Phase Noise on a Representative Module, 100 MHz Sine Wave, 400 MS/s Internal Clock Sample Rate, Chassis Fans High, No Reference Clock

    Suggested Maximum Frequencies for Common Functions[29]

    Sine

    145 MHz

    Square

    33 MHz(<133 V/µs slew rate)[30]

    Ramp

    1 MHz(<50 V/µs slew rate)[30]

    Triangle

    8 MHz

    Pulse Response, Typical

    Typical Rise/Fall Time (10% to 90%)[31]

    Flatness correction disabled

    3 ns

    Flatness correction enabled

    2.5 ns
    Aberration[31]

    Flatness correction disabled

    18% (7%)[32]

    Flatness correction enabled

    22%

    Clocking

    Onboard Sample Clock

    Sample clock rate range

    12.2 kS/s to 400 MS/s

    Sample clock rate frequency resolution

    <5.7 μHz[33]

    Sample clock delay

    0 ns to 2 ns, independent per channel[34]

    Sample clock delay resolution

    10 ps nominal

    Sample clock timebase phase adjust

    ±1 Sample clock timebase period

    Reference Clock Sources

    None (internal reference)

    PXI_CLK10 (backplane)

    CLK IN (front panel connector)

    Reference Clock Frequency[35]

    1 MHz to 100 MHz in increments of 1 MHz

    100 MHz to 200 MHz in increments of 2 MHz

    200 MHz to 400 MHz in increments of 4 MHz

    Default of 10 MHz

    Internal Reference Clock Frequency Accuracy[36]

    ±0.01%

    External Sample Clock

    External Sample clock source

    CLK IN front panel connector, with multiplication and division

    External Sample clock rate

    10 MS/s, 20 MS/s to 400 MS/s

    Sample Clock rate range

    12.2 kS/s to 400 MS/s

    Multiplication/Division factor range

    Varies depending on the external Sample clock rate

    External Sample clock delay

    0 ns to 2 ns, independent per channel[37]

    External Sample clock delay resolution

    10 ps, nominal

    External Sample clock timebase phase adjust

    ±1 Sample clock timebase period

    External Sample Clock Timebase

    External Sample clock timebase sources

    CLK IN front panel connector, with division

    External Sample clock timebase rate range

    200 MS/s to 400 MS/s

    Divide factor range

    1, 2 to 32768 in steps of 2

    Sample Clock delay

    0 ns to 2 ns, independent per channel

    Sample Clock delay resolution

    10 ps nominal

    Exporting Clocks

    Table 12. Exported Clock Rates
    Clock Destination Rates
    Reference Clock CLK OUT 1 MHz to 400 MHz
    PFI<0..1> 1 MHz to 200 MHz
    Sample Clock[38] CLK OUT 100 kHz to 400 MHz
    PFI<0..1> 0 MHz to 200 MHz
    Sample Clock Timebase[39] CLK OUT 100 kHz to 400 MHz
    PFI<0..1> 0 MHz to 200 MHz

    Terminals

    CLK IN (Sample Clock and Reference Clock Input, Front Panel Connector)

    Direction

    Input

    Destinations

    Reference clock, Sample clock, or Sample clock timebase

    Frequency range

    1 MHz to 400 MHz[40]

    Input impedance

    50 Ω , nominal
    Input voltage range

    50% duty cycle input

    500 mVpk-pk to 5 Vpk-pk into 50 Ω (–2 dBm to +18 dBm)

    45% to 55% duty cycle input

    550 mVpk-pk to 4.5 Vpk-pk into 50 Ω (–1.2 dBm to +17 dBm)
    Input protection range

    50% duty cycle input

    6 Vpk-pk into 50 Ω (19.5 dBm)

    45% to 55% duty cycle input

    5.4 Vpk-pk into 50 Ω (18.5 dBm)

    Duty cycle requirements

    45% to 55%

    Input coupling

    AC

    Voltage standing wave ratio (VSWR)

    1.3:1 up to 2 GHz, nominal

    CLK OUT (Sample Clock and Reference Clock Output, Front Panel Connector)

    Direction

    Output

    Sources

    Sample clock, divided by integer K (1≤ K ≤ 3, minimum[41]), Reference clock, or Sample clock timebase, divided by integer M (1 ≤ M ≤ 1048576)

    Frequency Range

    100 kHz to 400 MHz

    Output Voltage

    ≥0.7 Vpk-pk into 50 Ω typical

    Maximum Output Overload

    3.3 Vpk-pk from a 50 Ω source

    Output Coupling

    AC

    VSWR

    1.3:1 up to 2 GHz nominal

    PFI 0 and PFI 1 (Programmable Function Interface, Front Panel Connectors)

    Direction

    Bidirectional

    Frequency Range

    DC to 200 MHz

    As an Input (Trigger)

    Destinations

    Start trigger, Script trigger

    Input Range

    0 V to 5 V

    Input Protection Range

    -2 V to +6.5 V
    Input voltage

    VIH

    1.8 V

    VIL

    1.5 V

    Input Impedance

    10 kΩ , nominal
    As an Output (Event)

    Sources

    Sample clock divided by integer K (2 ≤ K ≤ 3, minimum[42]), Sample clock timebase divided by integer M (2 ≤ M ≤ 1048576), Reference clock, Marker event, Data marker event, Exported Start trigger, Exported Script trigger, Ready for Start event, Started event, or Done event

    Output impedance

    50 Ω , nominal

    Maximum Output Overload

    –2 V to +6.5 V
    Output voltage[43]

    Minimum VOH

    2.4 V (Open load)

    1.3 V (50 Ω load)

    Maximum VOL

    0.4 V (Open load)

    0.2 V (50 Ω load)

    Rise/Fall Time[44]

    3 ns, typical

    Triggers and Events

    Triggers

    Sources

    PFI<0..1> (SMB front panel connectors)

    PXI_Trig<0..7> (backplane connector)

    Immediate (does not wait for a trigger). Default.

    Types

    Start trigger edge, Script trigger edge and level, Software trigger

    Edge detection

    Rise, falling

    Minimum pulse width

    25 ns

    Delay from trigger to analog output with OSP disabled

    154 Sample clock timebase periods + 65 ns, nominal

    Additional delay with OSP enabled

    Varies with OSP configuration
    Trigger exporting

    Exported Trigger Destinations

    PFI<0..1> (SMB front panel connectors) or PXI_Trig<0..6> (backplane connector)

    Exported Trigger Delay

    50 ns, nominal

    Exported Trigger Pulse Width

    >150 ns

    Events

    Destinations

    PFI<0..1> (SMB front panel connectors)

    PXI_Trig<0..6> (backplane connector)

    Types

    Marker<0..3>, Data Marker<0..1>[45], Ready for Start, Started, Done

    Quantum

    Marker position must be placed at an integer multiple of two samples.

    Width

    Adjustable, minimum of 2 samples. Default is 150 ns.

    Skew, with respect to analog output

    PFI<0..1>

    ±3 Sample clock periods

    PXI_Trig<0..6>

    ±6 Sample clock periods

    Waveform Generation Capabilities

    Memory Usage

    The PXIe-5450 uses the Synchronization and Memory Core (SMC) technology in which waveforms and instructions share onboard memory. Parameters, such as number of segments in sequence list, maximum number of waveforms in memory, and number of samples available for waveform storage, are flexible and user defined.

    Onboard Memory Size[46]

    128 MB option

    134,217,728 bytes

    512 MB option

    536,870,912 bytes

    Loop Count

    1 to 16,777,215

    Burst trigger: Unlimited

    Quantum

    Waveform size must be an integer multiple of two samples.

    Output modes

    Arbitrary Waveform, Script, and Arbitrary Sequence
    Table 13. Minimum Waveform Size (Samples) [47]
    Trigger Mode Number of Channels Arbitrary Waveform Mode Arbitrary Sequence Mode >180 MS/s Arbitrary Sequence Mode ≤180MS/s
    Single 1 4 2 2
    2 4 4 4
    Continuous 1 142 140 58
    2 284 280 116
    Stepped 1 210 154 54
    2 420 308 108
    Burst 1 142 1,134 476
    2 284 2,312 952
    Table 14. Memory Limits (Bytes)
    Generation Mode Number of Channels 128 MB 512 MB
    Arbitrary Waveform Mode, Maximum Waveform Memory[48] 1 67,108,352 268,434,944
    2 33,553,920 134,217,216
    Arbitrary Sequence Mode, Maximum Waveform Memory[49] 1 67,108,352 268,434,944
    2 33,553,920 134,217,216
    Arbitrary Sequence Mode, Maximum Waveforms[50] 1 1,048,575 4,194,303
    2 524,287 2,097,151
    Arbitrary Sequence Mode, Maximum Segments in a Sequence[51] 1 8,388,597 33,554,421
    2 4,194,293 16,777,205
    Table 15. Maximum Waveform Play Times [52]
    Sample Rate Number of Channels 128 MB 512 MB
    400 MS/s 1 0.17 seconds 0.67 seconds
    2 0.084 seconds 0.34 seconds
    25 MS/s 1 2.68 seconds 10.74 seconds
    2 1.34 seconds 5.37 seconds
    100 kS/s 1 11 minutes 11 seconds 44 minutes 44 seconds
    2 5 minutes 35 seconds 22 minutes 22 seconds

    Onboard Signal Processing

    I/Q Rate

    OSP interpolation range

    2, 4, 8, 12, 16, 20

    24 to 8,192 (multiples of 8)

    8,192 to 16,384 (multiples of 16)

    16,384 to 32,768 (multiples of 32)

    I/Q rate[53]

    (Sample Clock rate) ÷ (OSP interpolation)

    Bandwith[54]

    0.4 * I/Q rate, per output

    Data processing modes

    Real (I path only) or Complex (I/Q)

    OSP mode

    Baseband

    Prefilter Gain and Offset

    Prefilter Gain and Offset Resolution

    21 bits

    Prefilter Gain Range

    –16.0 to +16.0 (|Values| < 1 attenuate user data)[55]

    Prefilter Offset Range

    –1.0 to +1.0[56]

    Prefilter Output

    (User data × Prefilter gain) + Prefilter offset[57]

    Finite Impulse Response (FIR) Filtering

    Table 16. FIR Parameters by Filter Type
    Filter Types Parameter Minimum Maximum
    Flat[58] Passband 0.4 0.4
    Raised cosine[59] Alpha 0.1 0.4
    Root raised cosine[60] Alpha 0.1 0.4

    Numerically Controlled Oscillator (NCO)

    Maximum Frequency[61]

    0.4 * sample rate

    Frequency Resolution[62]

    Sample rate/248

    Tuning Speed[63]

    250 μs, typical

    Digital Performance

    Maximum NCO Spur

    <-90 dBc[64]

    Interpolating Flat Filter Passband Ripple

    <0.1 dB[65]

    Interpolating Flat Filter Out-of-Band Suppression

    >80 dB[66]

    Calibration

    External Calibration

    The external calibration calibrates the ADC voltage reference and passband flatness. Appropriate constants are stored in nonvolatile memory.

    Self-Calibration

    An onboard, 24-bit ADC and precision voltage reference are used to calibrate the DC gain and offset. Onboard channel alignment circuitry is used to calibrate the skew between channels. The self-calibration is initiated by the user through the software and takes approximately 60 seconds to complete. Appropriate constants are stored in nonvolatile memory.

    Calibration Interval

    Specifications valid within 1 year of external calibration

    Warm-up Time

    15 minutes

    Power

    +3.3 VDC

    Typical

    1.9 A

    Maximum

    2.0 A
    +12 VDC

    Typical

    2.2 A

    Maximum

    2.5 A
    Total power

    Typical

    32.7 W

    Maximum

    36.6 W

    Physical Characteristics

    Dimensions

    3U, two-slot, PXI Express module

    21.6 cm × 4.0 cm × 13.0 cm (8.5 in. × 1.6 in. × 5.1 in.)

    Weight

    476 g (17 oz)

    Environment

    Maximum altitude

    2,000 m (800 mbar) (at 25 °C ambient temperature)

    Pollution Degree

    2

    Indoor use only.

    Operating Environment

    Ambient temperature range

    0 °C to 55 °C (Tested in accordance with IEC 60068-2-1 and IEC 60068-2-2. Meets MIL-PRF-28800F Class 3 low temperature limit and MIL-PRF-28800F Class 2 high temperature limit.)

    Relative humidity range

    10% to 90%, noncondensing (Tested in accordance with IEC 60068-2-56.)

    Storage Environment

    Ambient temperature range

    -25 °C to 85 °C (Tested in accordance with IEC 60068-2-1 and IEC 60068-2-2. Meets MIL-PRF-28800F Class 3 limits.)

    Relative humidity range

    5% to 95%, noncondensing (Tested in accordance with IEC 60068-2-56.)

    Shock and Vibration

    Operating shock

    30 g peak, half-sine, 11 ms pulse (Tested in accordance with IEC 60068-2-27. Meets MIL-PRF-28800F Class 2 limits.)

    Random vibration

    Operating

    5 Hz to 500 Hz, 0.3 grms (Tested in accordance with IEC 60068-2-64.)

    Nonoperating

    5 Hz to 500 Hz, 2.4 grms (Tested in accordance with IEC 60068-2-64. Test profile exceeds the requirements of MIL-PRF-28800F, Class 3.)

    Compliance and Certifications

    Safety

    This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

    • IEC 61010-1, EN 61010-1
    • UL 61010-1, CSA C22.2 No. 61010-1
    spd-note-note
    Note  

    For UL and other safety certifications, refer to the product label or the Online Product Certification section.

    Electromagnetic Compatibility

    This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:
    • EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
    • EN 55011 (CISPR 11): Group 1, Class A emissions
    • AS/NZS CISPR 11: Group 1, Class A emissions
    • FCC 47 CFR Part 15B: Class A emissions
    • ICES-001: Class A emissions
    spd-note-note
    Note  

    In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia, and New Zealand (per CISPR 11), Class A equipment is intended for use only in heavy-industrial locations.

    spd-note-note
    Note  

    Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.

    spd-note-note
    Note  

    For EMC declarations and certifications, refer to the Online Product Certification section.

    CE Compliance

    This product meets the essential requirements of applicable European Directives, as follows:

    • 2014/35/EU; Low-Voltage Directive (safety)
    • 2014/30/EU; Electromagnetic Compatibility Directive (EMC)

    Online Product Certification

    Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column.

    Environmental Management

    NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

    For additional environmental information, refer to the Minimize Our Environmental Impact web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

    Waste Electrical and Electronic Equipment (WEEE)

    spd-note-weee
    EU Customers  

    At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit ni.com/environment/weee.

    电子信息产品污染控制管理办法（中国RoHS）

    spd-note-china-rohs
    中国客户  

    National Instruments符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于National Instruments中国RoHS合规性信息，请登录 ni.com/environment/rohs_china。(For information about China RoHS compliance, go to ni.com/environment/rohs_china.)

    • 1 Both CH 0+/- or CH 1+/- terminals are terminated to ground through loads of the same value. Measured as differential Vpk-pk. Each terminal Vpk-pk is half of the differential Vpk-pk.
    • 2 Amplitude values assume the full scale of the DAC is utilized. If an amplitude smaller than the minimum value is desired, you can use waveforms less than the full scale of the DAC or you can use digital gain. Gain values in NI-FGEN correspond to Vpk, which is half the amplitude in Vpk-pk
    • 3 Measured with a DMM. Differential offset is not adjusted during self-calibration. Measured with both output terminals terminated to ground through a high impedance.
    • 4 For DC accuracy, differential output range is defined as 2 times the gain setting into high impedance. For example, the accuracy of a DC signal with a gain of 1, a load impedance of 1 GΩ, and a differential output range of 2 V is calculated by the following equation:

      Gain Error within ±5 °C of Self-Cal temperature: ±0.2% x (2 V) = ±4 mV

      Gain Error at + 10 °C of Self-Cal temperature: 4 mV + 0.03% x 5 x (2 V) = 7 mV

    • 5 Common mode offset is minimized through active circuitry. Applying an external nonzero common-mode offset to the output terminal is not recommended; however the common-mode circuitry can sink or source up to 5 mA of common-mode bias current. Terminate both output terminals to ground through the same impedance. If the output terminals are not terminated to ground, the maximum termination voltage is 250 mV through 50 Ω.
    • 6 Measured using a DMM, with full-scale data into highimpedance, 50 kHz sine wave, 400 MS/s.
    • 7 ±5 °C of self-calibration temperature. Alignment can be improved with manual adjustment by using Sample Clock Delay.
    • 8 Both output terminals must be terminated with the same impedance to ground.
    • 9 Both CH 0+/– or CH 1+/– terminals are terminated to ground through loads of the same value.
    • 10 Clipping may occur if the summed voltage is outside the maximum voltage range.
    • 11 -3 dB, 400 MS/s. Includes DAC sinc response. Flatness correction disabled.
    • 12 With respect to 50 kHz into 100 Ω differential load, 400 MS/s
    • 13 Flatness correction corrects for analog frequency response and DAC sinc response up to 0.3 x Sample Rate. Receiver return loss may degrade flatness.
    • 14 Valid for use without OSP enabled or when interpolating by 2x with OSP enabled. For all larger interpolation rates using OSP, the OSP filters may introduce extra ripple. Refer to the Interpolating Flat Filter Passband Ripple specification in the OSP section for more information about OSP filter ripple
    • 15 Frequency ranges with flatness correction enabled are sample rate dependent.
    • 16 Value = Min (0.3 x Sample Rate, 60 MHz)
    • 17 Value = 0.3 x Sample Rate
    • 18 With respect to 50 kHz on each channel, 400 MS/s. Load variations may degrade performance. Refer to the AC Amplitude Accuracy specification for more information about the 50 kHz reference accuracy.
    • 19 400 MS/s, amplitude -1 dBFS. Includes aliased harmonics. Measured differentially.
    • 20 400 MS/s, amplitude -1 dBFS. Measured from DC to 200 MHz. Also called harmonic distortion. All values are typical and include aliased harmonics. Differential output measured single-ended with balun.
    • 21 Long, nonrepetitive waveforms like modulated signals offer better spurious performance. For periodic waveforms represented by a small number of unique samples, DAC nonlinearities limit dynamic specifications.

      The first specification listed is for a 10.0 MHz sinusoid at a 400 MS/s sample rate (waveform contains 40 unique samples), while the specification in parentheses is for a 10.0 MHz sinusoid at a 399.9 MS/s sample rate (waveform contains over 3000 unique samples with unique DAC codes).

    • 22 400 MS/s, amplitude -1 dBFS. Measured from DC to 200 MHz. All values are typical and include aliased harmonics. Differential output measured single-ended with balun .
    • 23 Generating full-scale sine wave at frequency listed, 400 MS/s. Measured 200 MHz to 2 GHz. Anti-imaging filter is fixed and optimized for 400 MS/s. Reduced sample rates degrade image rejection.
    • 24 Amplitude –1 dBFS. Includes the 2nd through the 6th harmonic. Measured at 0.1 MHz offset. 400 MS/s sample rate. Differential output measured single-ended with balun.
    • 25 Amplitude -7 dBFS. Differential output measured single-ended with balun. 400 MS/s sample rate. Two-tone frequencies are frequency ±100 kHz.
    • 26 Average noise density from DC to 200 MHz, 400 MS/s. Direct path, differential, 1 Vpk-pk signal range, measured with balun, generating -40 dBm, 1 MHz sine wave.
    • 27 Using an external Sample Clock at some frequencies may introduce phase noise spurs due to external clock beating with onboard clock.
    • 28

      Generating sine wave at output frequency. System output jitter integrated from 100 Hz to 100 kHz.

    • 29 The PXIe-5450 is optimized for frequency-domain performance.
    • 30 Aberrations on pulsed waveforms are due to the analog reconstruction filter and can be significantly reduced if waveform data has limited slew rate. Waveforms with higher slew rates are not recommended.
    • 31 Values into 50 Ω.
    • 32 7% aberrations achievable with 133 V/µs slew rate limiting on waveform data. Pulsed waveforms should contain multiple data points per rising or falling edge, regardless of DAC rate or signal frequency.
    • 33 Varies with Sample clock frequency. Specification is worst-case.
    • 34 Set in software with the Channel Delay property or the NIFGEN_ATTR_CHANNEL_DELAY attribute.
    • 35 ±0.01% accuracy required.
    • 36 Measured without an external Reference clock. When locking to a Reference clock, frequency accuracy is solely dependent on the frequency accuracy of the Reference clock source.
    • 37 Set in software with the Channel Delay property or the NIFGEN_ATTR_CHANNEL_DELAY attribute.
    • 38 With optional divider.
    • 39 With optional divider.
    • 40 Not applicable for all destinations. Refer to the specifications for your clocking configuration for applicable ranges.
    • 41 The maximum value of the divisor, K, is sample rate dependent.
    • 42 The maximum value of the Sample clock divisor, K, is sample rate dependent.
    • 43 Output drivers are +3.3 V TTL/CMOS compatible up to 200 MHz.
    • 44 Load of 10 pF.
    • 45 There are two data markers per channel.
    • 46 Memory is shared between both channels.
    • 47 The minimum waveform size is sample rate dependent. Measured using a 200 MHz trigger.
    • 48 All trigger modes except where noted.
    • 49 Condition: One or two segments in a sequence.
    • 50 Condition: One or two segments in a sequence.
    • 51 Condition: Waveform size is <4,000 samples.
    • 52 Single Trigger mode. Play times can be significantly extended by using Continuous, Stepped, or Burst Trigger modes.
    • 53 For example, for a Sample clock rate of 400 MS/s, I/Q rate range = 12.2 kS/s to 200 MS/s.
    • 54 When using an external I/Q modulator, RF bandwidth = 0.8 * I/Q Rate.
    • 55 Unitless
    • 56 Applied after prefilter gain.
    • 57 Overflows occur when |Output| > 1.
    • 58 Lowpass filter that minimizes ripple to: I/Q rate × Passband.
    • 59 When using pulse shaping, these filters require an OSP interpolation factor of 24 or greater.
    • 60 When using pulse shaping, these filters require an OSP interpolation factor of 24 or greater.
    • 61 Frequency shift using the NCO is a quadrature (complex) operation.
    • 62 For example, 1.42 μHz with a sample rate of 400 MS/s.
    • 63 Software- and system-dependent.
    • 64 Full-scale output.
    • 65 Passband from 0 to (0.4 × I/Q Rate). Ripple is dependent upon the interpolation rate.
    • 66 Stopband suppression from (0.6 × I/Q rate).

    Recently Viewed Topics