1、adi hscadcevalcz基于fpga的高速adc評估方案公司的hsc-evalcz是采納 virtex-4 的高速adc評估平臺,能從adi高速adc評估板中捕捉數字數據.平臺通過端口銜接到pc,采納visualanalog 迅速評估高速adc的性能,與之配套的有adi adc高速評估板,信號源和時鐘源.平臺具有64 kb fifo深度, 644 msps sdr 和800 msps ddr并行輸入,支持1.8 v, 2.5 v和3.3 v 與lvds接口,支持高達18位的多個adc通路.本文介紹了hsc-adc-evalcz評估平臺產品亮點和主要特性,功能框圖以及,材料清單與元件布局

2、圖.the hsc-adc-evalcz high speed converter evaluation platform uses an fpga based buffer memory board to capture blocks of digital data from the analog devices high speed analog-to-digital converter (adc) evaluation boards. the board is connected to the pc through a usb port and is used with visualan

3、alog to quickly evaluate the performance of high speed adcs. the evaluation kit is easy to set up. additional equipment needed includes an analog devices high speed adc evaluation board, a signal source, and a clock source. once the kit is connected and powered, the evaluation is enabled instantly o

4、n the pc.hsc-adc-evalcz評估平臺產品亮點:1. easy to set up. connect the included power supply along with the clk and ain signal sources to the two evaluation boards. then connect to the pc via the usb port and evaluate the performance instantly.2. usb port connection to pc. pc interface is via a usb 2.0 conn

5、ection (1.1 compatible) to the pc. a usb cable is provided in the kit.3. 64 kb fifo. the on-board fpga contains an integrated fifo to store data captured from the adc for subsequent processing.4. up to 644 msps sdr/800 msps ddr encode rates on each channel. multichannel adcs with encode rates up to

6、644 msps sdr and 800 msps ddr can be used with the adc capture board.5. supports adcs with serial port interface or spi. some adcs include a feature set that can be changed via the spi. the adc capture board supports these spi-driven features through the existing usb connection to the computer witho

7、ut additional cabling needed.6. visualanalog . visualanalog supports the hsc-adc-evalc hardware platform as well as enabling virtual adc evaluation using adisimadc , analog devices proprietary behavioral modeling technology. this allows rapid compari-son between multiple adcs, with or without hardwa

8、re evaluation boards.hsc-adc-evalcz評估平臺主要特性:xilinx virtex-4 fpga-based buffer memory boardused for capturing digital data from high speed adc evaluation boards to simplify evaluation64 kb fifo depthparallel input at 644 msps sdr and 800 msps ddrsupports 1.8 v, 2.5 v, and 3.3 v cmos and lvds interfac

9、essupports multiple adc channels up to 18 bitsmeasures performance with visualanalogreal-time fft and time domain analysisanalyzes snr, sinad, sfdr, and harmonicssimple usb port interface (2.0)supports adcs with serial port interfaces (spi)fpga reconfigurable via jtag, on-board eprom, or usbon-board regulator circuit speeds setup5 v, 3 a switching power supply includedcompatible with windows 98 (2nd edition), windows 2000, windows me, and windows xpequipment neededanalog signal source and antialiasing filterlow jitter clock sourcehigh speed adc evaluation board and adc data sheetpc ru