=20

	I'd always read in the past to not use the internal OSC of a PIC as
it was too innacurate, but am now wondering if this is still the case
for a PIC24F?=20

	I've just started making a board based on a PIC24FJ64GA004 (my first
time with a 24F), and added the usual 20MHz crystal and supporting
caps; but are the modern PICs accurate enough to start considering
dumping this external setup?  The most time sensitive thing I'm doing
is interrupting @ 16kHz for PCM sound playback (current sample to PWM
output, set flag for Main loop to process the next sample), and simple
RS232 comms.  The datasheet seems to indicate a max variation of +/-
5%, but I don't have a benchmark to compare that against.=20

	I'd possibly be running the 8Mhz internal with the 4x PLL multiplier,
resulting in 16MIPS, vs the 10MIPS of the external 20MHz crystal
without PLL.=20

	Thoughts?=20

	Lee

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