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does anybody recognize this style of (presumably) FPGA packaging?
doesn't look like a Zynq despite it seeming very plausible by other factors, not sure what else
the device this ASIC is a part of has two AD9361S RFICs connected to it
actually it looks like there _are_ zynqs sold in this weird blank packaging?? https://www.ebay.com/itm/405451209796
@whitequark How many pins? This looks like a Xilinx package, FFG676 for Kintex-7 isn't too different.
I would expect there to still be laser markings on it though.
@azonenberg check this out https://www.ebay.com/itm/405451209796
@whitequark that looks more like "we ground off the markings to obscure its origin" than "chip was blank from the factory" to me. But I could be wrong.
@whitequark compare to a normal FFG676 part https://www.ebay.com/itm/364348675869
I've bought several of this exact listing from this seller. Barcode is either blacklisted or tampered with because it scans as "contact FAE" but the one chip of five that I put on a board worked.
@azonenberg if you look carefully you'll see two raised(?) bumps which make grinding unlikely
@whitequark the pin 1 mark is a pit not a bump
@whitequark the bumps i think are probably thermal compound residue?
@whitequark can we see the underside? the decoupling capacitor placements and power/ground via pattern (and transceiver signal locations) may be enough to ID the footprint if it's a xilinx part.
@azonenberg no but the part is 27x27 mm
@whitequark (I meant PCB underside not the component)
27x27 mm is consistent with a 676 ball 1mm pitch part.
Possible options that fit this overall mechanical style that I was able to find:
* Kintex-7 FFG676 or RF676 (7k160t, 325t, 410t)
* Zynq-7 FFG676 (xc7z045)
* Zynq-7 RF676 (xq7z030 or xq7z045)
* Kintex UltraScale RBA676 (XQKU040)
* Kintex UltraScale+ FFRB676 (XQKU5P)