[sdiy] New dsPIC chips with on-chip audio DACs

Paul Schreiber synth1 at airmail.net
Fri Mar 28 03:57:38 CET 2008


SP = DIP

Paul S.

----- Original Message ----- 
From: "Robin Whittle" <rw at firstpr.com.au>
To: "sdiy" <synth-diy at dropmix.xs4all.nl>
Sent: Thursday, March 27, 2008 9:47 PM
Subject: Re: [sdiy] New dsPIC chips with on-chip audio DACs


> In 2005/06 I did some intensive audio work on a project for a
> client, with a dsPIC30F6012.  I found it to be a very good device
> and was really happy with the complex stuff I could do in real-time,
> including some minimal reverb using on-chip RAM.
> 
> I worked in assembler and got to know the innards of the chip very
> well.  I interfaced it to a TI audio DAC with headphone amp, I guess
> it was a Burr-Brown device - PCM1770:
> 
>  http://focus.ti.com/docs/prod/folders/print/pcm1770.html
> 
> These 33 series chips are faster.
> 
> Is the dsPIC33FJ64GP802 really available in 28 pin DIP?
> 
> The selector guide at microchip.com says "please call for package
> information".  Searching for this at Mouser turns up a bunch of
> things with Microchip part numbers ending in things I guess indicate
> packaging:
> 
>  dsPIC33FJ64GP802-I/SO
>  dsPIC33FJ64GP802-I/SP
>  dsPIC33FJ64GP802-E/MM
>  dsPIC33FJ64GP802-E/SO
>  dsPIC33FJ64GP802-E/SP   1:  $9.60   25: $5.13  100: $5.00
>  dsPIC33FJ64GP802-I/MM
>  dsPIC33FJ64GP802T-I/SO
>  dsPIC33FJ64GP802T-I/MM
> 
> Back at the Microchip site, I look at the details for the
> dsPIC33FJ32MC202 which is in production, and is available in 28 pin
> DIP.  It looks like "-E/SP" is DIP.
> 
> This is most promising!
> 
> 
>  - Robin           http://www.firstpr.com.au/rwi/dfish/
> 
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