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ADC selection help needed!

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wiztronix

wiztronix

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hi everyone,
i want to sample signals from the electric guitar and make i talk to a digital FPGA board... what ADC type and resolution would be a good choice?? also what is the best way to interface it..? any help would be greatly appreciated...

regards,
wiztronix
 

Its simple, I believe E-guitar has only a single channel o/p. Just check out for the max frequency range you will encounter. Plemty of ADCs with Megasample/sec and upto 24 bits are available from TI and AD. Maxim also hav some... I would say, max the bits, the better.. 24bit is good
 

hey thanks for the details, i'll try a few things out and get back to you..

in the mean time, dos anyone know some ADCs that are specifically made for audio applications or something??

regards,
wiztronix
 

Look on Analog or TI websites, on audio ADC, it's on their main page, U can't miss it.
 

TI has a separate set of ADC for audio applications, starting with 'PCM'. eg:pCM1850
 

48KHz, 16bits per sample, would do the job
 

48KHz might not be high enough for the high freq from this instrument.

mondunno said:
48KHz, 16bits per sample, would do the job
Click to expand...
 

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Find the maximum frequency output from the guitar and decide also on the dynamic range u want. More the dynamic range more is the resolution needed and more is the cost of the device.

Added after 1 minutes:


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Find the maximum frequency output from the guitar and decide also on the dynamic range u want. More the dynamic range more is the resolution needed and more is the cost of the device.
 

hey thank you everyone for your inputs

has anyone seen anything like this done by anyone on the net? can ya refer me a link or two??

regards,
wiztronix
 

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