DIGILENT ANALOG DISCOVERY PRO PRO

Where are the termination resistors on the DDR chip I wondered though? Do you not need them when it’s so close or do they use series resistance of the drivers? They don’t show up on the front or back from what I see!

So the final question – what’s under the heatsink? That turns out to be the magic part of this. Removing the torx bolts is needed to see any more than this…Īnd now we’ve got it – not too much on the bottom: Switching back to digital section, we can see the routing of the Digital IO goes to that BGA part, with DDR memory beside it:īoldly a few jumpers hanging out here too – this is how it was shipped to me: Moving the metal shield up reveals it’s mostly just the relays for range switching: There are a few analog parts you can see, but a lot is hidden behind that metal shield: These channels are capable of interfacing with 3.3V and 1. When used this way, the 16 digital input/output channels are configured to capture high/low logic states on connected pins at a sample rate of up to 125 MS/s.

DIGILENT ANALOG DISCOVERY PRO PRO

The ADC is a AD9648 – two of them on the 4-channel device. The Analog Discovery Pro (ADP3450/ADP3250) can be used with WaveForms Logic instrument to act as a Logic Analyzer. The upper left has a BGA with a heatsink on it – nothing too serious so a small Zynq maybe, or a helper FPGA? The power supplies and similar are all well labeled. NOTE: This was going to be a twitter thread but twitter was down? So this is a lazy blog post… Analog Discovery Pro (from Digilent Website)Īnyone used to Digilent would expect this to be based on Zynq or similar – the fact the device has USB + ethernet ports makes it a pretty much sure thing! Taking the screws off the bottom gives us this view:

Digilent analog discovery pro