it came with a companion photo, this time of a die marked "1DX4A". there's some weird stuff going on in there...
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it came with a companion photo, this time of a die marked "1DX4A". there's some weird stuff going on in there... 5 comments
ahh, the HP Journal delivers! these are chips from the HP 54720/10 oscilloscope. the 1DX3 is a dual 7-bit (8-bit?) ADC and the 1DX4 is the front-end sampler and timing generator. (https://vtda.org/pubs/HP_Journal/HP_Journal_1993-10.pdf pg 74). (H/T SiliconInsider) HP Journal now would have articles about how great their marketing weenies are for trapping clueless customers in their subscription printing scams. Oh I wish Keysight had managed to keep the Hewlett-Packard name. |
like there are differential signals going all over the place even with some length matching. gotta be at the picosecond level.