Texas Instruments ADS58J64 EVM, Руководство пользователя, Страница: 8 / 20

Quick Start Guide
www.ti.com
8 SBAU284 – January 2017
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
ADS58J64 EVM
6. Press the Additional Device Parameters symbol next to the ADC Output Data Rate (see Figure 4 ), and
enter the following values, then press OK:
• Check the Enable box.
• ADC Sampling Rate = 491.52M
• ADC Input Frequency = 70M
• NCO = –122.88M
• Decimation = 2
7. Press the CPU_RESET button on the TSW14J56EVM device.
8. Click the Instrument Options menu at the top of HSDC Pro, and select Reset Board.
9. Click Capture in HSDC Pro to capture data from the ADC.
10. In HSDCPRO, change the Test Selection to Single Tone .
11. Also in HSDCPRO, change the spectrum analysis from Real FFT to Complex FFT .
12. From the Test Options file menu, enable the Analysis Window Markers .
13. Set the of value of the Analysis Window markers in the lower left corner of the HSDC Pro window:
• AWM1 = –120M
• AWM2 = 120M
14. The results from the captured data of Channel 1 should resemble Figure 5 , and the performance
should be similar to Table 1 . If this result was not achieved, then see Section 2.4 of this document.
Figure 5. Data Capture Results from Quick Start Procedure
Table 1. Quick Start Performance Measurements
Result Measured Value Units
SNR > 67 dBFS
SFDR > 80 dBFS