8xDigiBuffer

I/O multichannel (8x) digital buffer to match the impedance of external reference signals with the input impedance of the Xilinx® KC705 Evaluation kit

The 8xDigiBuffer is a custom built circuital component used as signal level (voltage) and impedance matching device. It is used as front-end logic to adapt and buffer external signals to the LVTTL 50 Ohm requirements of the Xilinx® KC705 Evaluation kit.

The 8xDigiBuffer accomodates 8x inputs and it is capable of translating the input voltage levels into LVTTL 50 Ohm in real-time.

In the current application and implementation, the 8xDigiBuffer, is used to make the pixel, line and frame clocks in a suitable form to be read bythe Xilinx® KC705 Evaluation kit SMA ports (Fig. 1).

I/Os SMA-FMC connector Board

Fig.1 - 8xDigiBuffer connections.

At the links in the table below all the needed information for building a 8xDigiBuffer:

Name

Where to get

8xDigiBuffer gerber soucer files

DigiBuff8_rev2_GerberFiles.zip

8xDigiBuffer build of materials

BOM_DIGIBUFF8_rev2.xlsx

8xDigibuffer circuit schematic

DigiBuff8_rev2_sch.pdf

8xDigibuffer pcb views

DigiBuff8_rev2_pcb.pdf