NI pxie-5840 features功能指南使用手册.pdf
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1、2023-03-01PXIe-5840 FeaturesPXIe-5840 FeaturesContentsPXIe-5840.4PXIe-5840 Front Panel and LEDs.4PFI 0 Connector Using NI-RFSA and NI-RFSG.7PXIe-5840 Block Diagram.7RF Input Subsystem.8RF Output Subsystem.11FPGA Basecard Subsystem.14LO Path.24Synchronization Using NI-RFSA and NI-RFSG.25Associating t
2、he PXIe-5840 and PXIe-5653 Modules.26Associating Devices in MAX.27Calibrating the Devices.28Other Considerations.28Peer-to-Peer Data Streaming.29Configuring a Peer-to-Peer Endpoint.29Configuring a Peer-to-Peer Endpoint with NI-RFSG.30Configuring a Peer-to-Peer Endpoint with NI-RFSA.30Configuring a P
3、eer-to-Peer Stream.31Configuring Flow Control.31Starting Peer-to-Peer Generation.31Stopping Peer-to-Peer Generation.33Stopping Peer-to-Peer Acquisition.34Device Warm-Up.34Power On,Reset,and Download Conditions.34Advanced Topics.35Spurious Performance.35RF Path Transitions.36Frequency Offset.40Local
4、Oscillators.42Interconnecting Multiple PXIe-5840 RF Channels(Homogeneous ChannelTypes).44Quadrature Mixing(Direct Conversion).47Configuring Attenuator Hold.49/PXIe-5840 FeaturesDe-embedding Overview.49S-parameters.50Scalar De-embedding.52Frequency and Bandwidth Configuration.52Calibration.64Self-Cal
5、ibration.64NI-TClk Manual Calibration Using NI-RFSA.68NI-TClk Manual Calibration Using NI-RFSG.69Unsupported NI-RFSG Features.70 National InstrumentsPXIe-5840 FeaturesPXIe-58406 GHz,1 GHz Bandwidth,RF PXI Vector Signal Transceiver 9 kHz to 6 GHz frequency range Up to 1 GHz of instantaneous bandwidth
6、PXIe-5840 Front Panel and LEDsFront Panel and LEDs7 NATIONAL产 INSTRUMENTSNl PXIe-5840Vect or Sig nal Transceiver9 kHz-6 GHz,1 GHz BWooACCESS ACTIVEREF INPFIO SENSITIVE=中RFOUTReverse Power+33 dBm MAXREFOUTLO IN+15 dBm MAXLO OUTJLOIN+15 dBm MAXLO OUTRF IN+33 dBm MAXJ4 PXIe-5840 FeaturesTable 1.General
7、 Connector DescriptionsConnectorUseConnector TypeREFINInput terminal that allows for the use of an external 10 MHz Reference Clock.MMPX(f)REF OUTOutput terminal that can export a 10 MHz Reference Clock orthe 156.25 MHz Data Clock.MMPX(f)PFIOProgrammable-function digital I/O(DIO)connector for use wit
8、h triggers or events.MMPX(f)DIOMulti-signal DIO connector that provides access to FPGA multi-gigabit transceivers(MGTs)and general purpose LVCMOS signals.Nano-PitchNotice The DIO connector is not an OCuLink interface.Do not connect the DIO connector on the PXIe-5840 to the OCuLink interface of anoth
9、er device.Nl is not liable for any damage resulting from such signal connections.ConnectorUseConnector TypeRFOUT RFOUTOutput terminal for RF signals.SMA(f)LOINInput terminal that allows for the use of an external local oscillator(LO)for RF OUT.MMPX(f)LOOUTOutput terminal for exporting the RF OUT LO
10、source.MMPX(f)National InstrumentsPXIe-5840 FeaturesTable 3.RF Connector DescriptionsConnectorUseConnector TypeRFIN LOINInput terminal that allows the use of an external LO for RF IN.MMPX(f)LOOUTOutput terminal for exporting the RF IN LO source.MMPX(f)RFOUTInput terminal for RF signals.SMA(f)OffThe
11、device is idle.LEDIndicationsACCESSIndicates the basic hardware status of the device.OffThe device is not yet functional or has detected a problem with a PXI Express power rail.AmberThe device is being accessed.Accessed means that you are writing to the device setup registers to control the device,r
12、eading from the device to monitor the device status,or transferring data to/from the device.GreenThe device is controllable through the software.ACTIVESolid greenThe device is generating a waveform.Dim amberThe device is waiting for an acquisition Reference Trigger.Solid amberThe device is acquiring
13、 a waveform.Solid redThe device has detected an error.The LED remains red until the error condition is removed.Not The indicators are listed in increasing order of priority.For6 PXIe-5840 FeaturesTable 3.LED IndicatorsLEDIndicationsexample,if you are generating a waveform using NI-RFSG and waiting o
14、n an acquisition Reference Trigger in NI-RFSA,the LED is dim amber.DIO Connector PinoutReservedGNDMGT Rx+0MGT Rx-0GNDMGT Rx+1MGT Rx-1GNDDIO 4DIO 5GNDMGTREF+/DIOOMGT REF-/DIO 1GNDMGT Rx+2MGT Rx-2GNDMGT Rx+3MGT Rx-3GND5.0 V/AlBl5.0 VA2B2GNDA3B3MGT Tx+0A4B4MGT Tx-0A5B5GNDA6B6MGT Tx+1A7B7MGT Tx-1A8B8GND
15、A9B9DIO 6A10BIODIO 7AllBllGNDA12B12DIO 2A13B13DIO 3A14B14GNDA15B15MGTTx+2A16B16MGTTx-2A17B17GNDA18B18MGTTx+3A19B19MGTTx-3A20B20GNDA21B21ReservedPFI 0 Connector Using NI-RFSA and NI-RFSGPFI 0 is a bidirectional connector.When programming the PXIe-5840 using NI-RFSA or NI-RFSG,the PFI 0 terminal can a
16、ccept a trigger from an external source or export an eventortrigger.Refer to the PXIe-5840 Specifications document for information about acceptable input signal characteristics for the PFI 0 line and output signal characteristics.PXIe-5840 Block Diagram National InstrumentsPXIe-5840 FeaturesThe PXIe
17、-5840 has the RF Input,RF Output,FPGA Basecard,and LO Path subsystems.REF OUTRFOUTRF INPFIODIOREF IN/Note Some calibration-related routing paths and front panel connectors have been omitted from the illustration of the high-level block diagram for simplicity.Related concepts:RF Input Subsystem RF Ou
18、tput Subsystem FPGA Basecard Subsystem LO PathRF Input SubsystemThe PXIe-5840 has two configurable RF paths comprised of an independent vector signal analyzer(RF input)path and vector signal generator(RF output)path.The following high-level block diagram represents the PXIe-5840 RF input path.8 PXIe
19、-5840 FeaturesBands Select Filter Bands:120-165 MHz 13-1.6GHZ165-240 MHz 1.622 GHz240-310 MHz 22-2.7 GHz310-410 MHz 2.7-3 4 GHz41050 MHz 3.4-4 5 GHz650-920 MHz 4.5-6 0 GHz092-1.3 GHzThe PXIe-5840 RF input path is AC coupled and covers a frequency range of 9 kHz to 6,000 MHz center frequency.For freq
20、uencies below 120 MHz(low frequency),RF input signals are directly sampled via analog-to-digital conversion.Frequencies greater than 120 MHz(high frequency)are translated to baseband via a single stage direct conversion(l/Q)down converter,allowing for wide instantaneous bandwidth.High Frequency RF I
21、nput PathThe high frequency subsystem of the RF input path consists of a programmable and filtered front end that feeds into a direct conversion downconverter.Once at baseband frequencies,the signal is sampled with an analog-to-digital converter(ADC)capable of up to 1,000 MHz of complex equalized ba
22、ndwidth.RF attenuation greater than 70 dB can be nominally configured through the combination of switchable attenuation and programmable step attenuators.RF attenuation is automatically chosen in conjunction with amplification stages to provide optimal reference levels over the support range of the
23、device.A switchable pre-amplifier is also configurable in the front end of the device to further optimize the signal path for noise figure.This pre-amplifier can be configured for bypass,forced inline,or automatically configured based on application needs.The configurable range of reference levels m
24、ay vary based on which option is selected for the pre-amplifier.Low Frequency RF Input PathThe low frequency subsystem of the RF input path is used to directly sample RF input signals below 120 MHz.The RF input signal is provided via a frequency selective diplexer to programmable gain components bef
25、ore being filtered and sampled with an analog-to-digital converter.National InstrumentsPXIe-5840 FeaturesThe programmable gain elements at low frequency consist of a switchable amplifier and a programmable attenuator.When disabled,the switched amplifier is bypassed by a 10 dB attenuator.The programm
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