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9

Spectral Characteristics – PXI-69846

Specification

Input Range

±1 V

±0�2 V

Signal to Noise and Distortion (SINAD), typical

76.06 dBc

71.97 dBc

Signal-to-Noise Ratio (SNR), typical

76.17 dBc

71.98 dBc

Total Harmonic Distortion (THD), typical

-90.65 dBc

-95.78 dBc

Spurious Free Dynamic Range (SFDR), typical

91.62 dBc

96.15 dBc

Effective Number of Bit (ENOB), typical

12.34-Bit

11.66-Bit

Test Conditions: Input signal frequency is 0.998 MHz. Digitizer sampling rate at 40 MHz

with 50 Ω input impedance. Calculated with 64 K-point data.
Note that these dynamic parameters may vary from one unit to another, with input

frequency and with the full scale input range selected.

Table 1-7: Spectral Characteristics – PCI/PXI-69846

PXI-69846, +/-0.2V, S-Rate = 40MS/s, Input Signal = 0.998 MHz @ -0.9758 dBFs

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

x 10

7

-120

-100

-80

-60

-40

-20

0

Frequency (Hz)

M

agn

itude

(d

B)

PXI-9846, +/-0.2V, S-Rate = 40MS/s, Input Signal = 0.998 MHz @ -0.9758 dBFs

Figure 1-8: PXI-69846 FFT with ±0.2 V Input Range

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Содержание PCI-69816H

Страница 1: ...PCI PXI 69816 26 46 4 CH 16 Bit 10 20 40 MS s Digitizer with 512 MB SDRAM User s Manual Manual Rev 1 00 Revision Date Jul 16 2016...

Страница 2: ...03 China Tel 86 21 5047 5899 Fax 86 21 5047 5899 Email service jytek com Additional information aids and tips that help users perform tasks Information to prevent minor physical injury component damag...

Страница 3: ...ling Rate and TIMEBASE Control 23 3 3 1 Internal Oscillator 23 3 3 2 External Clock Through Front Panel 23 3 3 3 External Clock from PXI Interfaces 24 3 3 4 Sampling Rate Control 24 3 3 5 Timebase Exp...

Страница 4: ...4 Comparing the Different Trigger Sources from SSI 37 3 8 Physical Location of the PXI and PCI Digitizer 38 3 8 1 Identify PXI Digitizer s Physical Location by Geographic Address 38 3 8 2 Assign a Bo...

Страница 5: ...69846 9 Table 1 8 Timebase 11 Table 1 9 Triggering 12 Table 1 10 Data Storage and Transfer 12 Table 1 11 Onboard Reference 12 Table 1 12 General Information 13 Table 2 1 Connector Pin Assignments 16...

Страница 6: ...ource and Architecture 23 Figure 3 6 Configuring Different Sampling Rate of a Digitizer 24 Figure 3 7 PCI PXI 698x6 Trigger Architecture 25 Figure 3 8 External Digital Trigger Polarity and Pulse Width...

Страница 7: ...ansferred to the host memory The data transfer is performed using scatter gather DMA which provides a high data throughput rate and uses system memory more effectively Flexible Triggering The PCI PXI...

Страница 8: ...PXI version Standard height half length PCI form factor PCI version Support 5 V and 3 3 V PCI signaling Support 32 bit 66 MHz PCI interface 4 channels simultaneous single ended analog input 16 bit hi...

Страница 9: ...t 1 in 65536 Crosstalk 80 dB at 1MHz for all input ranges at 50 input impedance Table 1 1 Analog Input Specifications Offset Error Model Name PXI 69816D PXI 69826D PXI 69846D PXI 69846W PCI 69846D PXI...

Страница 10: ...1 M impedance 0 2 V 1 V 5 1 MHz 9 6 MHz 20 MHz 80 MHz 1 V 50 MHz 0 2 V Input Range PCI 69816H PCI 69826H PXI 69846H PCI 69846H 50 and impedance 1 V 5 V 5 1 MHz 9 6 MHz 20 MHz 1 M impedance 1 V 5 V 90...

Страница 11: ...mpedance Input Range PXI 69816D PXI 69826D PXI 69846D PXI 69846W PCI 69846D 0 2 V 5 0 LSBRMS 6 0 LSBRMS 8 0 LSBRMS 15 0 LSBRMS 8 0 LSBRMS 1 V 3 0 LSBRMS 4 0 LSBRMS 5 0 LSBRMS 7 0 LSBRMS 5 0 LSBRMS Inp...

Страница 12: ...Range SFDR typical 90 37 dBc 98 65 dBc Effective Number of Bit ENOB typical 12 85 Bit 12 32 Bit Test Conditions Input signal frequency is 0 998 MHz Digitizer sampling rate at 10 MHz with 50 input imp...

Страница 13: ...typical 88 29 dBc 93 52 dBc Spurious Free Dynamic Range SFDR typical 88 88dBc 95 52 dBc Effective Number of Bit ENOB typical 12 77 Bit 12 07 Bit Test Conditions Input signal frequency is 0 998 MHz Di...

Страница 14: ...ge PXI 69826 1V S Rate 20MS s Input Signal 0 998 MHz 1 0796 dBF 0 1 2 3 4 5 6 7 8 9 10 x 10 6 120 100 80 60 40 20 0 Frequency Hz Magnitude dB PXI 9826 1V S Rate 20MS s Input Signal 0 998 MHz 1 0796 dB...

Страница 15: ...ns Input signal frequency is 0 998 MHz Digitizer sampling rate at 40 MHz with 50 input impedance Calculated with 64 K point data Note that these dynamic parameters may vary from one unit to another wi...

Страница 16: ...put Signal 0 998 MHz 1 1732 dBFs 0 0 2 0 4 0 6 0 8 1 1 2 1 4 1 6 1 8 2 x 10 7 120 100 80 60 40 20 0 Frequency Hz Magnitude dB PXI 9846 1V S Rate 40MS s Input Signal 0 998 MHz 1 1732 dBFs Figure 1 9 PX...

Страница 17: ...846 Timebase Frequency Range 10 MHz 1 MHz 20 MHz 1 MHz 40 MHz 1 MHz Sampling Rate Range 24 bitdividedcounter 10 MS s 0 596 S s 20 MS s 1 192 S s 40 MS s 2 384 S s Internal Oscillator Stability 25 ppm...

Страница 18: ...put port Connector Type SMB Compatibility 3 3 V TTL Output Level High threshold VOH 2 4V minimum Low threshold VOL 0 2 maximum Driving Capability 8 mA Minimum Output Pulse Width 20 ns Analog Trigger S...

Страница 19: ...uding connectors PXI version Single 3U PXI module 100 mm by 160 mm PCI version Standard height half length PCI card 167 64 mm by 106 68 mm PCI Slot Width 1 slot PCI Bus Interface PCI Signaling Support...

Страница 20: ...amaged by static electricity The equipment should be handled on a grounded anti static mat and the operator should wear an anti static wristband during the unpacking and installation procedure Please...

Страница 21: ...Mechanical Drawing Figure 2 2 PCI 698x6 Mechanical Drawing The JYTEK PXI 69816 PXI 69826 PXI 69846 is packaged in a Eurocard form factor with PXI specificationsmeasuring160mminlengthand100mminheight...

Страница 22: ...nction CLK IN Input SMB The CLK IN is a 50 AC coupled external timebase input TRG IO Input Output SMB The TRG IO is a bidirectional port for external digital trigger input or output CH0 Input BNC Thes...

Страница 23: ...or latch 6 Tighten the screw on the front panel 7 Power on the PXI system chassis To remove the module reverse step 2 through 6 above To install the PCI 69816 PCI 69826 PCI 69846 module 1 Turn off you...

Страница 24: ...provides drivers for other application environment 2 5 1 WD DASK Legacy Drivers and Support WD DASK is composed for advanced 32 bit kernel drivers for customized DAQ application development WD DASK en...

Страница 25: ...cribed in this chapter including the control and setting of signal sources trigger sources trigger modes data transfers and synchronizing multiple modules 3 1 Functional Block Diagram Figure 3 1 PCI 6...

Страница 26: ...Figure 3 3 Analog Input Signal Block Diagram 3 2 2 Basic Acquisition Timing The trigger is a signal that starts or stops the acquisition In post trigger mode and delay trigger mode the trigger is use...

Страница 27: ...t of a delay count is the period of the TIMEBASE For PCI PXI 69816 the unit is 100ns and for PCI PXI 69846 the unit is 25ns Refer to section 3 5 4 for more detail Re Trg Cnt 24 bit 1 16777215 Re Trigg...

Страница 28: ...he following table illustrates the idea transfer characteristics of various input ranges of the PCI PXI 69816 26 46 The data format of the PCI PXI 69816 26 46 is straight binary Description Analog Inp...

Страница 29: ...z 20 MHz and 40 MHz for PCI PXI 69816 PCI PXI 69826 and PCI PXI 69846 respectively 3 3 2 External Clock Through Front Panel When you need a specific timebase in some applications that the onboard osci...

Страница 30: ...R as timebase clock source Note that the function is only available when the PCI PXI 698x6 is in a PXI system It s not supported when the PCI PXI 69816 26 46 is in a Compact PCI system 3 3 4 Sampling...

Страница 31: ...Analog CH2 Analog CH3 Digital Trigger Output SSI Bus Only available in PCI version Figure 3 7 PCI PXI 698x6 Trigger Architecture 3 4 1 Software Trigger Software trigger is generated by software comman...

Страница 32: ...Analog Triggers The trigger conditions for analog triggers are illustrated in Figure 3 9 and described as follows Positive slope trigger The trigger event occurs when the trigger signal analog input...

Страница 33: ...d as a master module and can output SSI_TRG1 SSI_TRG2 or SSI_START_OP to PXI Trigger Bus Each signal can be routed from one of the PXI Trigger Bus 0 7 by software programming For more detail about the...

Страница 34: ...ion 3 5 2 Pre trigger Acquisition Use pre trigger acquisition to collect data before the trigger event The acquisition starts once specified function calls are executed to begin the pre trigger operat...

Страница 35: ...ration 3 5 3 Middle trigger Acquisition Use middle trigger acquisition when you want to collect data before and after the trigger event The amount of stored data before and after trigger event can be...

Страница 36: ...tion to collect data after several trigger events as illustrated in Figure 3 16 You can program the number of triggers then the digitizer will acquire a specific sample data each time a trigger is acc...

Страница 37: ...ce all the data has been stored in the on board memory the data will be transferred to the host computer s memory through bus mastering DMA In a multi user or multi tasking OS like Microsoft Windows L...

Страница 38: ...The bi directional SSI I Os provide a flexible connection between modules which allows one SSI master PCI PXI 69816 26 46 to output the SSI signals to other slaves modules to receive the signals Table...

Страница 39: ...9816 26 46 is capable of achieving multiple module synchronization Users can use ACLSSI 2 ACL SSI 3 ACL SSI 4 cables to synchronize 2 3 or 4 modules Please refer to Figure 3 20 for the installation of...

Страница 40: ...I Signal Locations and Pin Definition 3 7 1 SSI_TIMEBASE As an output the SSI_TIMEBASE signal outputs the onboard LVTTL timebase through PXI trigger bus As an input the PCI PXI 69816 26 46 accepts the...

Страница 41: ...l by TIMEBASE as illustrated in Figure 3 22 SSI_TRIG1 Tw Tw 2 TIMEBASE Clocks TIMEBASE SSI_TRIG2 Figure 3 22 SSI_TRIG2 Output Timing As an input the PCI PXI 69816 26 46 accepts the SSI_TRIG2 signal to...

Страница 42: ...art signal in a pre trigger or middle trigger acquisition sequence The signal is configured in the rising edge detection mode Figure 3 24 show the SSI_START_OP signal input and output timing requireme...

Страница 43: ...software command so multiple PCI PXI 69816 26 46 modules don t start the data acquisition simultaneously which may result in the fact that the amount of stored samples are different if the trigger ev...

Страница 44: ...D to a PCI Digitizer When users plug two or more PCI 69816 26 46 modules in one computer board ID provides an effective mechanism for user to identity the specific module With this method users can ac...

Страница 45: ...e 3 26 Enlargement of Board ID setting Only dip switches 1 5 are valid for board ID settings Dip switches 6 9 are unused When a dip switch is switched to ON it represents 1 the opposite direction repr...

Страница 46: ...1 1 0 1 9 0 1 1 0 1 10 1 0 1 0 1 11 0 0 1 0 1 12 1 1 0 0 1 13 0 1 0 0 1 14 1 0 0 0 1 15 0 0 0 0 1 16 1 1 1 1 0 17 0 1 1 1 0 18 1 0 1 1 0 19 0 0 1 1 0 20 1 1 0 1 0 21 0 1 0 1 0 22 1 0 0 1 0 23 0 0 0 1...

Страница 47: ...ng over the power cord If the equipment will not bein usefor long periods of time disconnect theequipment from mains to avoid being damaged by transient overvoltage All cautions and warnings on the eq...

Страница 48: ...he equipment is not functioning or does not function according to the user s manual The equipment has been dropped and damaged If the equipment has obvious sign of breakage Never open the equipment Fo...

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