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Appendix A Specifications
PCI-4451/4452 User Manual A-6
©
National Instruments Corporation
Output signal range, software-selectable
FIFO buffer size......................................512 samples
Data transfers..........................................DMA, programmed I/O, Interrupt
Transfer Characteristics
Offset (residual DC) ...............................±5 mV max, any gain
Gain (amplitude accuracy)......................±0.1 dB, f
out
= 1 kHz
Voltage Output Characteristics
Output impedance...................................22 Ω between + and −
DACxOUT, 4.55 kΩ to AOGND
Frequency response ................................±0.2 dB, 0 to 23 kHz, 51.2 kS/s
−3 dB bandwidth.....................................0.492 f
s
Output coupling......................................DC
Short-circuit protection...........................yes (+ and − may be shorted
together indefinitely)
Outputs protected....................................±DAC0OUT, ±DAC1OUT
Idle channel noise ...................................−91 dB f
s
, DC to 23 kHz
measurement bandwidth
Attenuation
Full
-scale Range
Linear Log
1 0 dB ±10.0 V
10 20 dB ±1.00 V
100 40 dB ±0.100 V
User.book Page 6 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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