[sdiy] Book on ADC/DACs for synth applications

[Tom Wiltshire]

Dave makes a good point. Some experience with I2C (or it's faster  
cousin I2S) or SPI is useful.

Personally, I find talking to DACs (I haven't tried ADCs) not too big  
a problem. You set it up to shoot SPI at it, nothing happens, and  
then you change stuff until something comes out. I usually just send  
a incrementing count as a test signal. When you see a rising ramp on  
the scope, it's working.

Debugging comms links where *both* ends are software is much worse,  
since I never seem to know which end is causing the problem and  
finish up working on both bits simultaneously. I guess I need a known- 
good device and a personal SPI standard of some type so I don't have  
to go through the day-of-pain that it seems to cost me!

On another note, M.A.M. gets another vote from me. It's the best book  
on synthtech that there is, and it's an absolute pleasure to read.

T.



On 3 Mar 2010, at 07:28, Dave Manley wrote:

> Sam Ecoff wrote:
>> Hi,
>>
>> If I were to read one and only one book on ADCs and DACs for audio  
>> applications, what book would it be?
>>
>> Thanks in advance!
>>
> Sam,
>
> Note in addition to all the analog specs associated with these  
> devices, they typically have one of  two types of digital  
> interface, either parallel or serial.  If you are unfamiliar with  
> how these interfaces work it would be worthwhile to get a text on  
> basic digital design.  For the serial interfaces, look for a  
> description of the  I2C or SPI protocols.
>
> HTH,
> Dave
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