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AD7984 датащи(PDF) 11 Page - Analog Devices |
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AD7984 датащи(HTML) 11 Page - Analog Devices |
11 / 12 page Circuit Note CN-0269 Rev. 0 | Page 11 of 12 CIRCUIT EVALUATION AND TEST This circuit uses the EVAL-CN0269-SDPZ circuit board and the EVAL-SDP-CB1Z SDP-B System Demonstration Platform controller board. The two boards have 120-pin mating connectors, allowing for the quick setup and evaluation of the performance of the circuit. The EVAL-CN0269-SDPZ board contains the circuit to be evaluated, as described in this note, and the SDP-B controller board is used with the CN-0269 evaluation software to capture the data from the EVAL-CN0269-SDPZ circuit board. Equipment Needed The following equipment is needed: • PC with a USB port and Windows® XP (32 bit), Windows Vista®, or Windows 7 • EVAL-CN0269-SDPZ circuit board • EVAL-SDP-CB1Z SDP-B controller board • CN-0269 SDP Evaluation Software • 6 V dc (500 mA), ±12 V(300 mA) power supply • Low distortion signal generator to provide ±10 V output with frequency from dc to 1MHz Getting Started Load the evaluation software by placing the CN-0269 evaluation software into the CD drive of the PC. Using My Computer, locate the drive that contains the evaluation software. Functional Block Diagram See Figure 1 for the circuit block diagram and the EVAL-CN0269- SDPZ-SCH-RevX.pdf file for the complete circuit schematic. This file is contained in the CN-0269 Design Support Package. A functional block diagram of the test setup is shown in Figure 24. Figure 24. Test Setup Block Diagram Setup Connect the 120-pin connector on the EVAL-CN0269-SDPZ circuit board to the CON A connector on the EVAL-SDP-CB1Z controller board (SDP-B). Use nylon hardware to firmly secure the two boards, using the holes provided at the ends of the 120-pin connectors. With power to the supply off, connect a 6 V and ±12 V dc power supply to the pins on CN1, CN2 marked with +6 V, ±12 V and GND on the board. If available, a 6 V wall wart can be connected to the barrel connector on the board and used in place of the 6 V power supply. Connect the USB cable supplied with the SDP-B board to the USB port on the PC. Do not connect the USB cable to the Mini-USB connector on the SDP-B board at this time. Turn on the 6 V and ±12 V power supply at the same time and then connect the USB cable to the Mini-USB connector. Test With the 6 V and ±12 V power supply on, launch the evaluation software. Once USB communications are established, the SDP-B board can be used to send, receive, and capture data from the EVAL-CN0269-SDPZ board and do the data analysis under time and frequency domain to evaluate the performance of the whole circuit. Figure 25 shows a photo of the EVAL-CN0269-SDPZ evaluation board connected. Information regarding the SDP-B board can be found in the SDP-B User Guide. Information and details regarding test setup and calibration, and how to use the evaluation software for data capture can be found in the CN-0269 Software User Guide. Figure 25. EVAL-CN0269-SDPZ Evaluation Board Connectivity for Prototype Development The EVAL-CN0269-SDPZ evaluation board is designed to be evaluated with the EVAL-SDP-CB1Z SDP-B board based on the Black-Fin DSP through SPORT port; however, any microprocessor can be used to interface to serial port of AD7984 through the 14 pin PMOD connector. In order for another controller to be used with the EVAL-CN0269-SDPZ evaluation board, software must be developed by a third party. There are existing interposer boards that can be used to interface to the Altera and Xilinx field programmable gate arrays (FPGAs). The BeMicro SDK board from Altera can be used with the BeMicro SDK/SDP interposer using Nios Drivers. Any Xilinx evaluation board that features the FMC connector can be used with the FMC-SDP Interposer board. 6V DC ± 12V DC POWER SUPPLY EVAL-CN0269-SDPZ BOARD CN1 AND CN2 PC EVAL-SDP-CB1Z SDP BOARD 120 PINS J2 ~ J5 JP3 USB USB CABLE JP4 10.000V + G – SIGNAL GENERATOR |
Аналогичный номер детали - AD7984 |
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Аналогичное описание - AD7984 |
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