If I may be the heresy, one of the Philips LPC series (8051 core) has 4 x
PWM which can be run from 2 to 10 bits accuracy and with rates AFAIR up to
around 1 MHz.
Not a PIC though :-(.
Development  system with true ICE costs under $NZ1000 ($US400).
(Made by Philips in NZ)

More heresy suggests that a Scenix would give you about 50/20 * 4 = 10 times
the throughput of a PIC,
Heavy on power and $ though. .



regards



      Russell McMahon



From: Roman Black <fastvid@EZY.NET.AU>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Thursday, 21 December 2000 05:01
Subject: Re: [PIC]: fast easy DAC with PIC


>Hi, I need to implement 2 DAC with one PIC,
>preferably a 16F84, and I need reasonably
>fine resolution, at least 64 levels, pref
>128.
>
>I have tried the PWM options, but I need more
>speed, like the ability to adjust from full
>to zero output 32,000 times/sec. Using 20MHz
>PIC and home made PWM I can't even come close.
>
>So, any suggestions on getting 2x analogue
>output from a small PIC at high speed??
>:o)
>-Roman
>
>--
>http://www.piclist.com hint: The PICList is archived three different
>ways.  See http://www.piclist.com/#archives for details.
>
>
>

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