Buying on Alibaba

[Bassman59]

Not what I would call "high end", no.  It is an interface for audio for IP networking.  It operates in several modes in coordination with a serial data input, but mostly is used for voice calls including uLaw/A-law but also 48 kSPS, 16 bit audio.  Ever hear of IRIG-B120?

It may come to spinning the board, but this device is very small, 20-TSSOP and has discrete lines for configuration rather than an I2C or SPI interface, hard to find something similar. 

Seems like PCM3060 might be an option for you if you have to re-spin the board?

Hardware control over config options, single-ended analog inputs, ADC side and DAC side are separate but driving the clocks from the same source fixes that.

[gnuarm]

Not what I would call "high end", no.  It is an interface for audio for IP networking.  It operates in several modes in coordination with a serial data input, but mostly is used for voice calls including uLaw/A-law but also 48 kSPS, 16 bit audio.  Ever hear of IRIG-B120?

It may come to spinning the board, but this device is very small, 20-TSSOP and has discrete lines for configuration rather than an I2C or SPI interface, hard to find something similar. 

Seems like PCM3060 might be an option for you if you have to re-spin the board?

Hardware control over config options, single-ended analog inputs, ADC side and DAC side are separate but driving the clocks from the same source fixes that.

Yes, at first glance that has potential.  Thanks.  Not too many "dumb" CODECs around.  This one seems to have a number of extra pins making the part half again as long.  The differential outputs can save me an op amp which could make up for the difference in size.  However, that ends up being a much bigger rework.  So in effect a complete do over.  The board is very tight... VERY TIGHT.  So I'd like to change as little as possible.  We will see.  I may have to pay $30 or $40 per for the AKM part, but that still leaves room for profit.  My customer marks their equipment up big time, so they will pay if necessary. 

[gnuarm]

Crap!  For who knows what reason, the PCM3060 does not work at 8 kHz sample rate!  Low end is only 16 kSPS.   Oh, well.

[gnuarm]

I got the quote back from my CM and there are a number of parts that are a half year out in sourcing.  An AD part is 140 days (4.5 months) out, I've asked for a quote from AD.  A TI 422 driver/receiver is listed as 245 days, but the TI web site says they have 12,000 on hand! 

I just tried to contact Sullins through their web site.  You can type into the form but if you use the arrow key to move the cursor backwards it erases everything you have typed in.  What a PITA that is.

I heard back from Sullins and they have a lead time of only 5 weeks, so no problem.  If I can believe TI and Future having stock on a few items there shouldn't be any problems other than the durn AD switches.  When they quote "days" rather than weeks, is that calendar days or work days?

[mon2]

I do not think a few days will be a difference but guessing calendar days.

RS422 is a jelly-bean component - we use them in high volumes for our RS422/RS485 designs. There must be at least a dozen valid subs for that part. If TI is showing stock - trust that inventory level. Like TI but there are many others as noted.

What is the part you are after from AD? TI ?

[gnuarm]

The AD part is ADG1411YRUZ.  I'm not worried about the TI part.  As you say, there must be many subs.  It's just odd that the CM didn't find any when TI has stock.  Seems they do a lot of that.  Digikey will have a couple thousand and TI will have 100 thousand.  Some chip makers have inventory for the distis to draw from, but TI will sell direct and they are typically much cheaper. 

Don't think you'll find any of the ADG1411YRUZ other than through brokers maybe.  Someone clued me into netcomponents.com, but they want your life history to sign up and I Haven't completed that yet.  I expect all the sources are just brokers or worse.

BTW, the "few days" is 5 vs 7.  Yeah, that makes a big difference.  The assembly will go fast, but the testing is about 600 a week.  So 11,000 take some 4 months.  Add another 7 months onto the front to get inventory and that's the nearly a year.  Yeah, I'd like to know if it is 20 weeks or 28 weeks for the AD chip.