1.2. Hardware Setup
- The ADC AD9217 derives power from the FMC pins.
- Si5341 clock generator on the Intel® Stratix® 10 development kit provides reference clock to the ADF5356 clock source and device clock to the field-programmable gate array (FPGA).
- In ADF5356, provide a reference clock to a single-ended SMA input marked as REFINB, while a 5 GHz suppression filter is added. In this setup procedure, VHF-8400+ from Mini-Circuits Inc. is used.
- Attach SMA 50 Ohm terminations to other inputs and outputs and ensure required modifications are done to the ADF5356 board. Refer to Figure 2.
Note: Remove R12 and R27 to apply external reference.Figure 2. ADF5356 Terminating Unused Input and Output
- Connect RFOUTB of ADF5356 to the clock input J13 of AD9217.
- Connect the mini-USB cable to the system demonstration platform-serial (SDP-S) controller board of ADF5356 and power up the boards.
The following system-level diagram shows how the different modules connect in this design.
In this setup, the data rate of the native PHY transceiver lanes is 10 Gbps. An external clock source card ADF5356 provides sampling clock of 10000 MHz to the ADC (AD9217) through the SMA cables. The Si5341 oscillator on the development kit board provides reference clock to the FPGA and the external clock source board ADF5356. The reference clock to the FPGA is provided to the ATX PLL, which generates the serial clock to transceiver. SPI is used to access the registers in ADC (AD9217).