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National Instruments Corporation 3-1 PCI-4451/4452 User Manual
3
Hardware Overview
This chapter presents an overview of the hardware functions on your
PCI-4451/4452 device. Figure 3-1 shows a block diagram of the digital
functions. Figure 3-2 shows a block diagram of the analog functions.
The two function blocks connect through the analog mezzanine bus.
Figure 3-1.
Digital Function Block Diagram
Direct Digital
Synthesis
Clock Generator
DAQ-STC
AI FIFO
MITE
PCI Controller
PCI Bus
AO FIFO
†
Parallel <-> Serial
Converter
FIFO and DMA
Control
General Control
Functions
Clock Control
RTSI Bus
Digital I/O Bus
Analog Mezzanine Bus (to Analog Section)
Analog Mezzanine Control
†
PCI-4451 only
User.book Page 1 Tuesday, April 14, 1998 10:20 AM
- PCI-4451/4452 User Manual 1
- Important Information 3
- Contents 4
- Chapter 4 5
- About This Manual 8
- PCI-4451/4452 User Manual x 9
- Related Documentation 10
- Customer Communication 10
- Introduction 11
- What You Need to Get Started 12
- Unpacking 12
- Software Programming Choices 13
- Optional Equipment 14
- Custom Cabling 14
- Chapter 1 Introduction 15
- Software Installation 16
- Hardware Installation 16
- Device Configuration 17
- Hardware Overview 18
- Figure 3-2 19
- Analog Function Block Diagram 19
- Analog Input 20
- Table 3-1 21
- Analog Output 22
- Table 3-2 23
- Figure 3-3 24
- Chapter 3 Hardware Overview 25
- PCI-4451/4452 User Manual 3-8 25
- RTSI Triggers 26
- Digital I/O 27
- Timing Signal Routing 28
- Device Configuration Issues 30
- Signal Connections 31
- Figure 4-1 32
- Analog Pin Connections 32
- Table 4-1 33
- Table 4-2 34
- Analog I/O Signal Summary 34
- Figure 4-2 35
- Digital Pin Connections 35
- Table 4-3 36
- Table 4-4 38
- Digital I/O Signal Summary 38
- Figure 4-3 39
- Analog Input Stage 39
- Types of Signal Sources 40
- Figure 4-4 41
- Analog Power Connections 42
- Figure 4-5 43
- Digital I/O Connections 43
- Digital Power Connections 44
- Timing Connections 44
- CONVERT* 45
- Scan Counter 45
- PFI0/TRIG1 (EXT_TRIG) Signal 46
- PFI1/TRIG2 (PRETRIG) Signal 47
- CONVERT* Signal 47
- EXTSTROBE* Signal 48
- WFTRIG Signal 48
- UPDATE* Signal 48
- GPCTR0_SOURCE Signal 49
- GPCTR0_GATE Signal 50
- GPCTR0_OUT Signal 50
- GPCTR0_UP_DOWN Signal 50
- GPCTR1_SOURCE Signal 51
- GPCTR1_GATE Signal 51
- GPCTR1_OUT Signal 52
- GPCTR1_UP_DOWN Signal 52
- Figure 4-13 53
- GPCTR Timing Summary 53
- Field Wiring Considerations 54
- Chapter 4 Signal Connections 55
- Calibration 56
- Self-Calibration 57
- External Calibration 57
- Traceable Recalibration 58
- Theory of Analog Operation 59
- Input Coupling 60
- Antialias Filtering 61
- PCI-4451/4452 User Manual 6-4 62
- Figure 6-1 63
- Input Frequency Response 63
- Figure 6-2 64
- Figure 6-3 65
- Figure 6-4 66
- Analog Output Circuitry 68
- Figure 6-5 69
- Signal Spectra in the DAC 69
- Mute Feature 71
- Specifications 72
- Transfer Characteristics 73
- Amplifier Characteristics 74
- Dynamic Characteristics 75
- Onboard Calibration Reference 76
- Channel Characteristics 76
- Timing I/O 79
- Triggers 80
- Analog Trigger 80
- Digital Trigger 80
- Bus Interface 80
- Power Requirement 80
- Physical 81
- Environment 81
- Pin Connections 82
- Figure B-1 83
- Country Telephone Fax 85
- Technical Support Form 86
- Configuration Form 87
- Edition Date: 88
- Part Number: 88
- Mail to: 88
- Numbers/Symbols 89
- PCI-4451/4452 User Manual G-2 90
- PCI-4451/4452 User Manual G-4 92
- PCI-4451/4452 User Manual G-6 94
- PCI-4451/4452 User Manual G-8 96
- Glossary 100
- PCI-4451/4452 User Manual I-2 109
- PCI-4451/4452 User Manual I-4 111
- PCI-4451/4452 User Manual I-6 113
- PCI-4451/4452 User Manual I-8 115
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