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Old 21st May 2013, 10:36 AM   #1
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Default ADC to IP and IP to DAC

For start I wanted to say a hi to all.

Now.

As title says

I want a SINGLE ANALOGUE input which can do up to 100KHz FLAT.
Then I want this analogue signal to put it into a ADC.
Than, I want to take it out from IP (NET).

On the other side of the NET (IP) there will be a IP to DAC where I could take out this signal as it was (up to 100KHz flat) BUT without much latency.

Simlified, I want a single analogue signal from 0Hz up to ~100KHz to pass it through a NETWORK.

Is it posible?

Thanks in advance,
George.

Last edited by hipro5; 21st May 2013 at 10:43 AM.
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Old 21st May 2013, 02:56 PM   #2
Julf is offline Julf  Europe
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Quote:
Originally Posted by hipro5 View Post
I want a SINGLE ANALOGUE input which can do up to 100KHz FLAT.
Why the 100 K requirement?

Quote:
BUT without much latency.
What do you consider "much"?

Quote:
Is it posible?
Maybe. Depends on your latency criteria. An ADC that can do above 96K is not going to be cheap, and you do need to buffer the IP packets to some degree, and that will inevitably bring latency.

If you only want to transmit audio and not some strange high-frequency information for a non-audio application, you could use something like the Barix Exastreamer.
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Old 21st May 2013, 03:06 PM   #3
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No, I know barix.

I need to transmit at least 65KHz FLAT.

Is there anything ready "out there"?
Could someone do this for me? (NOT 1 piece )

Thanks.
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Old 21st May 2013, 03:09 PM   #4
qusp is offline qusp  Australia
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-87dB SNR on the ADC input isnt so flash though
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Old 21st May 2013, 03:12 PM   #5
Julf is offline Julf  Europe
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-87dB SNR on the ADC input isnt so flash though
Agree, but the OP said nothing about SNR, and I have no idea what his/her application is that requires 0-100 KHz. It might not be SNR-sensitive.
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Old 21st May 2013, 03:42 PM   #6
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SNR is OK if it is at least BELOW -90dB to -95dB
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Old 21st May 2013, 03:47 PM   #7
Julf is offline Julf  Europe
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Originally Posted by hipro5 View Post
I need to transmit at least 65KHz FLAT.
Clearly you have some unusual and special requirements. It would help to know what kind of analog information it is that you want to transmit, and why.
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Old 21st May 2013, 04:05 PM   #8
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Can't an ADC or a DAC do ONE Input ~65KHz?

It's about some musicians.
They need a bandwidth 0 Hz to 65KHz flat for passing:
a. their musical instumens (0 - 20KHz - yes they want 20KHz - I can't even hear this frequency )
b. they want "flatness".
c. they have an equipment that has an oscilator ~45KHz. They give to it 0 - 20KHz and they get that 45KHz + the mix from 0 to 20KHz, thus ~65KHz, and their max frequency is 45+20 = 65KHz. (Though I can't imagine where they use a system like that)
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Old 21st May 2013, 04:45 PM   #9
Julf is offline Julf  Europe
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c. they have an equipment that has an oscilator ~45KHz. They give to it 0 - 20KHz and they get that 45KHz + the mix from 0 to 20KHz, thus ~65KHz, and their max frequency is 45+20 = 65KHz. (Though I can't imagine where they use a system like that)
How would they know if there is any signal above 20 KHz?
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Old 21st May 2013, 05:45 PM   #10
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I don't know.

They asked me this - 0 - 65KHz FLAT to IP out and IP in to 0 - 65KHz out.
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