Rev 30 Sep 2014 21:07 | Page 5
Figure 4. Entry Screen of the AD9136/AD9135 SPI software
2. Configure the hardware according to the hardware set-up instructions given in the Hardware Setup
section above. Set the frequency of the DAC clock signal generator to 1.6GHz, and the output level to
3dBm. The spectrum analyzer can be configured with Start Frequency = 1 MHz, Stop Frequency =
800 MHz, and Resolution Bandwidth of 30 kHz, and Trace Detector to Average (Log/RMS/V). Choose
Input Attenuation to be 8dB. This can be adjusted later if indications are that the analyzer is causing
degradations.
3. Follow the sequence below to configure the AD9136/AD9135 SPI registers.
a. The Links should be set to dual link. The JESD Mode is set to 8, Subclass 1 box checked,
Interpolation set to 1, and FDAC set to 1.6GHz. Click “Commit” button to initialize the AD9136/AD9135.
The JESD204B PLL should be locked indicated with bright green JESD204B PLL readback LED.
b. At this point the Serial Line Rate in the DPG3 software panel should read 8Gbps.
}}
Figure 5. Configured panel of the AD9136/AD9135 SPI software
) in the DPG Downloader screen.
