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Old 9th November 2004, 04:26 PM   #1
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Default Looking for Crystal CS8416 for my power DAC.

Well, I guess the title says it all here, I am looking to try and find a source of some crystal CS8416 parts in a SOIC 28 package as I can't seem to find anyone who can sell (or give) me one for less than 100 at the moment (which is no use at all).

Basicaly, I will be using this chip as an input selecter/decoder for an all digital amplifier I am supposed to be building as my fourth year project for university. However, as I can't seem to find any, this is looking less likely.

An alternative would be if anyone could sujest another way of taking a SPDIF or TOSLINK signal strigh from the input of the amp, and splitting it into a suitable format to run into a ti TAS5518 digital PWM processor (basicaly, the whole amp will be acting like a big 1-bit DAC). I have no idea if there are other people out there who make simmilar chips (I haven't found any yet, but that doesn't mean they don't exist) that I could use in place of this one, but if there are I would love to know about them as well.

so, if anyone could help me out here it would be very useful and might keep me going with making this amp up (rather than wimping out and going back to building a class-ab type thing).

thanks

andrew
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Old 9th November 2004, 05:07 PM   #2
tiroth is offline tiroth  United States
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Have you tried calling Newark, Insight, Cirrus?

TI also makes DIR, they are more of a pain to work with though. DIR1701/1703 etc.
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Old 9th November 2004, 05:08 PM   #3
jwb is offline jwb  United States
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Hey parsnip,

I replied to your email. Guess you never got it. I prefer Newark.
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Old 9th November 2004, 05:50 PM   #4
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Default He is not the only one who doesn't read their e-mail........

I told him that TI does not make the DIR170x any longer.

Jocko
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Old 9th November 2004, 06:07 PM   #5
tiroth is offline tiroth  United States
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Sorry Jocko.
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Old 9th November 2004, 06:07 PM   #6
jwb is offline jwb  United States
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Oh goody, they can release a DIR 270x. Surpassing their previous confusion, the 270x's datasheet will be completely blank.
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Old 9th November 2004, 06:30 PM   #7
JoeBob is offline JoeBob  Canada
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Just order a sample from Cirrus/Crystal. Unless of course you need large amounts of them that is.
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Old 9th November 2004, 09:31 PM   #8
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Prehaps component sourcing ought to be part of any electronics course.

http://www.asahi-kasei.co.jp/akm/en/product/audio.html

Failing that create a SPDIF decoder in a FPGA or a selector preceding a more common SPDIF rx.
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Old 9th November 2004, 10:09 PM   #9
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A blank data sheet may be an improvement. At least it won't contain contradictory information.

Jocko
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Old 9th November 2004, 10:29 PM   #10
OliverD is offline OliverD  Germany
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And it shows more clearly what the TI engineers had in mind when they designed the chip.
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