Need Advice

A'af · 28th February 2002, 04:10 PM

How can I get 192kHz sampling with CS8420, and the dac match to it, what the difference between Upsampling and Oversamplig?

tiroth · 28th February 2002, 05:52 PM

a) CS8420 does not support sample rate >100kHz

b) AD1852/3 and many other DAC support 192kHz

c) there is no difference

hill · 1st March 2002, 05:49 AM

Hi, A'af,

The CS8420 doesn't support 192KHz sampling rate. If it's very necessary then you can use AD1896.

At 192K sampling rate, if you don't want to oversampling the signal then there'er so much DAC you can use. Such PCM1702, PCM63, PCM67, AD1862, TDA1541A, AD1853, CS43122 etc. If you want to do oversampling at 192K sampling rate then the DACs which is support 192KHz sampling rate would been the only choice. Such as AD1853, CS4397, CS43122, PCM1738 etc.

ftorres · 1st March 2002, 08:21 AM

A'Af,

As my eminent colleagues pointed out, CS8420 doesn't accept 192kHz. If you still want to use a this sampling frequency, you can chain the CS8420 (up to 96 kHz) with the NPC SM5849, (96-> 192) The NPC chip doesn't handle directly 192 kHz (max conversion ratio is about 2.2) This 2-chip solution has been used in the italian "North Star Design 192" model DAC, which is highly praised here in Europe. AFAIK, the only ASRC capable of handling 44.1->192 conversion is the AD1896.

Concerning the DAC chips, I was told that AD was about to launch a new 192 DAC, AD1955. Arrival date should be around April 02. May be it's woth waiting...

A'af · 4th March 2002, 08:16 AM

Thank you for all of you, now I get a clear sight.

28th February 2002, 04:10 PM	#1
A'af diyAudio Member Join Date: Nov 2001 Location: Indonesia, Jakarta	Need Advice How can I get 192kHz sampling with CS8420, and the dac match to it, what the difference between Upsampling and Oversamplig?

1st March 2002, 05:49 AM	#3
hill diyAudio Member Join Date: Nov 2001 Location: G.Z. China	Re: Need Advice Hi, A'af, The CS8420 doesn't support 192KHz sampling rate. If it's very necessary then you can use AD1896. At 192K sampling rate, if you don't want to oversampling the signal then there'er so much DAC you can use. Such PCM1702, PCM63, PCM67, AD1862, TDA1541A, AD1853, CS43122 etc. If you want to do oversampling at 192K sampling rate then the DACs which is support 192KHz sampling rate would been the only choice. Such as AD1853, CS4397, CS43122, PCM1738 etc. __________________ I change therefore I am.

1st March 2002, 08:21 AM	#4
ftorres diyAudio Member Join Date: Apr 2001 Location: Limoges, France	A'Af, As my eminent colleagues pointed out, CS8420 doesn't accept 192kHz. If you still want to use a this sampling frequency, you can chain the CS8420 (up to 96 kHz) with the NPC SM5849, (96-> 192) The NPC chip doesn't handle directly 192 kHz (max conversion ratio is about 2.2) This 2-chip solution has been used in the italian "North Star Design 192" model DAC, which is highly praised here in Europe. AFAIK, the only ASRC capable of handling 44.1->192 conversion is the AD1896. Concerning the DAC chips, I was told that AD was about to launch a new 192 DAC, AD1955. Arrival date should be around April 02. May be it's woth waiting... __________________ François "Learning French is trivial: the word for horse is cheval, and everything else follows in the same way."

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28th February 2002, 05:52 PM	#2
tiroth diyAudio Member Join Date: Dec 2001 Location: Pittsburgh, PA, USA	a) CS8420 does not support sample rate >100kHz b) AD1852/3 and many other DAC support 192kHz c) there is no difference

4th March 2002, 08:16 AM	#5
A'af diyAudio Member Join Date: Nov 2001 Location: Indonesia, Jakarta	Thank you for all of you, now I get a clear sight.

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