用户手册目录PCI-4451/4452 User Manual1Support2Internet Support2Bulletin Board Support2Fax-on-Demand Support2Telephone Support (USA)2International Offices2National Instruments Corporate Headquarters2Important Information3Warranty3Copyright3Trademarks3WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS3Contents4About This Manual8Organization of This Manual8Conventions Used in This Manual9National Instruments Documentation10Related Documentation10Customer Communication10Chapter 1 Introduction11What You Need to Get Started12Unpacking12Software Programming Choices13National Instruments Application Software13Optional Equipment14Custom Cabling14Chapter 2 Installation and Configuration16Software Installation16Hardware Installation16Device Configuration17Chapter 3 Hardware Overview18Analog Input20Input Mode20Input Coupling20Input Polarity and Input Range20Considerations for Selecting Input Ranges21Analog Output22Output Mode22Output Polarity and Output Range22Trigger23RTSI Triggers26Digital I/O27Timing Signal Routing28Programmable Function Inputs28Device and RTSI Clocks28Selecting Sample/Update Clock Frequency29Device Configuration Issues30Chapter 4 Signal Connections31I/O Connectors31Analog I/O Connector Signal Descriptions32Digital I/O Connector Signal Descriptions35Analog Input Signal Connections39Types of Signal Sources40Floating Signal Sources40Ground-Referenced Signal Sources40Analog Output Signal Connections41Analog Power Connections42Digital I/O Signal Connections42Digital Power Connections44Timing Connections44Programmable Function Input Connections44Acquisition Timing Connections45PFI0/TRIG1 (EXT_TRIG) Signal46PFI1/TRIG2 (PRETRIG) Signal47CONVERT* Signal47EXTSTROBE* Signal48Waveform Generation Timing Connections48WFTRIG Signal48UPDATE* Signal48General-Purpose Timing Signal Connections49GPCTR0_SOURCE Signal49GPCTR0_GATE Signal50GPCTR0_OUT Signal50GPCTR0_UP_DOWN Signal50GPCTR1_SOURCE Signal51GPCTR1_GATE Signal51GPCTR1_OUT Signal52GPCTR1_UP_DOWN Signal52FREQ_OUT Signal54Field Wiring Considerations54Chapter 5 Calibration56Loading Calibration Constants56Self-Calibration57External Calibration57Traceable Recalibration58Chapter 6 Theory of Analog Operation59Functional Overview59Analog Input Circuitry59Input Coupling60Calibration60Antialias Filtering61The ADC66Noise67Analog Output Circuitry68Anti-Image Filtering68The DAC70Calibration70Mute Feature71Appendix A Specifications72Analog Input72Onboard Calibration Reference76Analog Output76Digital I/O78Timing I/O79Triggers80Bus Interface80Power Requirement80Physical81Environment81Calibration81Appendix B Pin Connections82Appendix C Customer Communication84Electronic Services84Telephone and Fax Support85Technical Support Form86PCI-4451/4452 Hardware and Software ConfigurationForm87National Instruments Products87Other Products87Documentation Comment Form88Glossary89Numbers/Symbols89A89B-C91D93E-F95G96H-I97K-L99M-N100O-P101Q102R-S103T105U-V106W-Z107Index108Numbers108A108B-C109D110E-H111I-P112R-S113T114U-W115Figures7Figure 3-1. Digital Function Block Diagram18Figure 3-2. Analog Function Block Diagram19Figure 3-3. Below-Low-Level Triggering Mode24Figure 3-4. Above-High-Level Triggering Mode25Figure 3-5. Inside-Region Triggering Mode25Figure 3-6. High-Hysteresis Triggering Mode25Figure 3-7. Low-Hysteresis Triggering Mode26Figure 3-8. RTSI Bus Signal Connection27Figure 4-1. Analog Pin Connections32Figure 4-2. Digital Pin Connections35Figure 4-3. Analog Input Stage39Figure 4-4. Analog Output Channel Block Diagram41Figure 4-5. Digital I/O Connections43Figure 4-6. Typical Posttriggered Acquisition45Figure 4-7. Typical Pretriggered AcquisitionPFI146Figure 4-8. EXTSTROBE* Signal Timing48Figure 4-9. GPCTR0_SOURCE Signal Timing49Figure 4-10. GPCTR0_OUT Signal Timing50Figure 4-11. GPCTR1_SOURCE Signal Timing51Figure 4-12. GPCTR1_OUT Signal Timing52Figure 4-13. GPCTR Timing Summary53Figure 6-1. Input Frequency Response63Figure 6-2. Input Frequency Response Near the Cutoff64Figure 6-3. Alias Rejection at the Oversample Rate65Figure 6-4. Comparison of a Clipped Signal to a Proper Signal66Figure 6-5. Signal Spectra in the DAC69Figure A-1. Idle Channel Noise (Typical)75Figure B-1. 68 Pin Digital Connector for any Digital Accessory83Tables7Table 3-1. Actual Range and Measurement Precision21Table 3-2. Actual Range and Measurement Precision23Table 4-1. Analog I/O Connector Pin Assignment33Table 4-2. Analog I/O Signal Summary34Table 4-3. Digital I/O Connector Pin Assignment36Table 4-4. Digital I/O Signal Summary38文件大小: 2.4 MB页数: 115Language: English打开用户手册
用户手册目录PCI-4451/4452 User Manual1Support2Internet Support2Bulletin Board Support2Fax-on-Demand Support2Telephone Support (USA)2International Offices2National Instruments Corporate Headquarters2Important Information3Warranty3Copyright3Trademarks3WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS3Contents4About This Manual8Organization of This Manual8Conventions Used in This Manual9National Instruments Documentation10Related Documentation10Customer Communication10Chapter 1 Introduction11What You Need to Get Started12Unpacking12Software Programming Choices13National Instruments Application Software13Optional Equipment14Custom Cabling14Chapter 2 Installation and Configuration16Software Installation16Hardware Installation16Device Configuration17Chapter 3 Hardware Overview18Analog Input20Input Mode20Input Coupling20Input Polarity and Input Range20Considerations for Selecting Input Ranges21Analog Output22Output Mode22Output Polarity and Output Range22Trigger23RTSI Triggers26Digital I/O27Timing Signal Routing28Programmable Function Inputs28Device and RTSI Clocks28Selecting Sample/Update Clock Frequency29Device Configuration Issues30Chapter 4 Signal Connections31I/O Connectors31Analog I/O Connector Signal Descriptions32Digital I/O Connector Signal Descriptions35Analog Input Signal Connections39Types of Signal Sources40Floating Signal Sources40Ground-Referenced Signal Sources40Analog Output Signal Connections41Analog Power Connections42Digital I/O Signal Connections42Digital Power Connections44Timing Connections44Programmable Function Input Connections44Acquisition Timing Connections45PFI0/TRIG1 (EXT_TRIG) Signal46PFI1/TRIG2 (PRETRIG) Signal47CONVERT* Signal47EXTSTROBE* Signal48Waveform Generation Timing Connections48WFTRIG Signal48UPDATE* Signal48General-Purpose Timing Signal Connections49GPCTR0_SOURCE Signal49GPCTR0_GATE Signal50GPCTR0_OUT Signal50GPCTR0_UP_DOWN Signal50GPCTR1_SOURCE Signal51GPCTR1_GATE Signal51GPCTR1_OUT Signal52GPCTR1_UP_DOWN Signal52FREQ_OUT Signal54Field Wiring Considerations54Chapter 5 Calibration56Loading Calibration Constants56Self-Calibration57External Calibration57Traceable Recalibration58Chapter 6 Theory of Analog Operation59Functional Overview59Analog Input Circuitry59Input Coupling60Calibration60Antialias Filtering61The ADC66Noise67Analog Output Circuitry68Anti-Image Filtering68The DAC70Calibration70Mute Feature71Appendix A Specifications72Analog Input72Onboard Calibration Reference76Analog Output76Digital I/O78Timing I/O79Triggers80Bus Interface80Power Requirement80Physical81Environment81Calibration81Appendix B Pin Connections82Appendix C Customer Communication84Electronic Services84Telephone and Fax Support85Technical Support Form86PCI-4451/4452 Hardware and Software ConfigurationForm87National Instruments Products87Other Products87Documentation Comment Form88Glossary89Numbers/Symbols89A89B-C91D93E-F95G96H-I97K-L99M-N100O-P101Q102R-S103T105U-V106W-Z107Index108Numbers108A108B-C109D110E-H111I-P112R-S113T114U-W115Figures7Figure 3-1. Digital Function Block Diagram18Figure 3-2. Analog Function Block Diagram19Figure 3-3. Below-Low-Level Triggering Mode24Figure 3-4. Above-High-Level Triggering Mode25Figure 3-5. Inside-Region Triggering Mode25Figure 3-6. High-Hysteresis Triggering Mode25Figure 3-7. Low-Hysteresis Triggering Mode26Figure 3-8. RTSI Bus Signal Connection27Figure 4-1. Analog Pin Connections32Figure 4-2. Digital Pin Connections35Figure 4-3. Analog Input Stage39Figure 4-4. Analog Output Channel Block Diagram41Figure 4-5. Digital I/O Connections43Figure 4-6. Typical Posttriggered Acquisition45Figure 4-7. Typical Pretriggered AcquisitionPFI146Figure 4-8. EXTSTROBE* Signal Timing48Figure 4-9. GPCTR0_SOURCE Signal Timing49Figure 4-10. GPCTR0_OUT Signal Timing50Figure 4-11. GPCTR1_SOURCE Signal Timing51Figure 4-12. GPCTR1_OUT Signal Timing52Figure 4-13. GPCTR Timing Summary53Figure 6-1. Input Frequency Response63Figure 6-2. Input Frequency Response Near the Cutoff64Figure 6-3. Alias Rejection at the Oversample Rate65Figure 6-4. Comparison of a Clipped Signal to a Proper Signal66Figure 6-5. Signal Spectra in the DAC69Figure A-1. Idle Channel Noise (Typical)75Figure B-1. 68 Pin Digital Connector for any Digital Accessory83Tables7Table 3-1. Actual Range and Measurement Precision21Table 3-2. Actual Range and Measurement Precision23Table 4-1. Analog I/O Connector Pin Assignment33Table 4-2. Analog I/O Signal Summary34Table 4-3. Digital I/O Connector Pin Assignment36Table 4-4. Digital I/O Signal Summary38文件大小: 2.4 MB页数: 115Language: English打开用户手册