Re: QMX(+) Build experience, Poor Audio Filter Sweep/RF Filter Sweep/Image Sweep/ADC IQ test and resolution with new PCM1804
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Jeff Moore has never seen a PCM1804 fail after he’s replaced it and he replaces quite a few of them. Jeff is sourcing replacement devices from Digikey and they’re also available directly from TI.com. I tend to agree there’s something amiss in the CM’s procurement process.
Tony
If boards with a failed PCM1804 never fail when the part is replaced, that points to counterfeit parts.? And I'd not have them stuffed at that assembly house, make it?a hand add at QRP Labs instead.
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Jerry, KE7ER
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On Thu, Jan 2, 2025 at 07:56 AM, Jerry Gaffke wrote:
When final test detects a problem with the PCM1804, do they replace it with stock you buy from directly from TI?
Do these parts also fail in the same way at a 15% rate?
It could be your assembly house is sourcing what they believe are parts from TI, but they are counterfeit.
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