Device for Registration, Digital Processing and Synthesis of Analog Signals the Sampling Rate of which is up to 100 MHz
ADC100AS1
ADC 2υ12 bit, 80 MHz, DAC 9 bit, 80 MHz,
MASTER PCI 32/33
General technical characteristics
  • Data exchange type
MASTER PCI32/33
  • Number of ADC channels
2
  • Number of DAC channels
1
  • ADC resolution, bit
12
  • Absense of code missing, guaranted bit
12
 
  •  Effective resolution (bit) for frequency 49 MHz
10.9*
  • Maximum sampling rate, MHz
80
  • DAC resolution, bit
7...14
  • Input impedance of analog input, Ohm
50 + 1
  • Input signal range,V, up to 
+ 1
  • Apperture jitter RMS value
         when the temperature is  +25Ρ, ps (typical value)0.25**
  • Integral nonlinearity of conversion, ΕΜΠ, (typical.)
+ 1*
  • Differential nonlinearity of conversion, ΕΜΠ (typical)
+ 0.5*
         Input digital lines number is upto6
  • Output digital lines number is upto
5
  • Digital signals lines input impedance, Ohm
50 + 1
  • Digital signals lines input , pF, upto
10
  • Input digital signal level
LVTTL, LVCMOS33
  • Maximum volume of buffer RAM, signal countings per channel
256K
  • Required power, Vt, upto
7
  • Power supply voltage, V
5
  • Power supply of the device is executed through PCI bus of the PC
  • The card enables you to set reprogrammable logic cells matrix of the company XILINX family Virtex- up to 800 thousand logic cells
  • Digital automat scheme programming is executed from a chip Flash SPROM that is installed on the card
  • Digital automat scheme for signal processing may be changed to the order of the buyer
  • The card supports PCI interface work in the mode "Master" (DMA, data transfer speed is not less than 100 MB/sec)

*  - parameters are controlled by indirect methods;
** - value for ADC chip. For the whole device parameter depends on the oscillator that is being used . It can be installed according to the technical order of the buy

GENERAL DESCRIPTION OF THE  CARD

The device ADC100AS1 is used for conversion of analog signals to digital codes, for storage of these codes and for their transfer through the PCI bus. Analog part of the device is based on ADC chips  of the company ANALOG DEVICES. Maximum sampling rate is 80 MHz. Results of conversion are stored in the buffer memory of the device ADC100AS1. The volume of stored realisation is 256K. Using PLIS of Virtex family of company XILINX enables to reprogram the device ADC100AS1 to execute processing analog and digital signals according to algorythms. According to the order of the buyer. Typical scheme of the card is digital oscilloscope. ADC data storage is executed synchronously with data output to the outputs of the DAC. Sampling process start is executed according to the order from a PC or according to external start code and continues till the buffer memory is full. Buffer memory volume-256k. Sampling process finish is followed by apparatus interruption processing or by card registers asking.

INSTALLATION AND USAGE OF THE DEVICE

The card is made as standard PCI broadening card. There are the card, device driver for operation systems  Windows 9x\ME\2000\XP, test software and DDL function library for card usage in the progects of the user and samples of  work in different modes are included in a set. After card installation to a free PCI slot and after PC loading operation system will recognise the device in the system. Then when the driver place is required you should indicate  the route to the file "MDMAI.inf". This file is included in software of the card. When the driver is installed under  Windows 2000\XP, if the window "Digital signature not found" you should answer "Yes" to the question " Continue installation?". After installing the driver it is necessary to reload the PC. To check the card work after successful driver installation you may use a test program Xdsp_Oscilloscope, that is included in the software of the card..

EXTRA DOCUMENTS

  • Operation manual for installation

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  • Card inputs usage

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  • Digital oscilloscope test program description Xdsp_Oscilloscope

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  • Programmer guide

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