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

[Bruce Duncan]

At 07:13 PM 3/27/2008, you wrote:
>Ooooh, tasty.
>
>Although when you look closely, the 16-bit DAC only has 14-bit
>accuracy. Still, it's better than jumping off Beachy Head with a rake
>up your nose, as my friend Chris is over-fond of saying.
>
>Still, there's a UART so you can get MIDI onto the chip, there's SPI
>so you can attach a digitally-scanned control panel, there's at least
>10 channels of A/D in case your controls aren't digitally scanned,
>and there's 4 PWM output modules so you can also get it to generate a
>slew of LFOs and Envs.
>
>In fact, if you followed it with a analogue filter and a VCA
>(SSM2045/47 spare anyone?), you could probably build an entire synth
>voice with it.
>
>Nice work, Microchip. Hot damn, there goes my summer.
>
>T.
These will be killer for VC Digital oscillators and 14bit out will be 
more than adequate for generated waveforms.
Sample rate is probably more important than bit depth when generating 
sawtooths and squares.
100kHz sample rate will great.
We won't be playing the violin through these as the A2D is only 12bit.

If only they could do all all of the above and be 32bit we would be in heaven.

Oh yes the data sheet shows 28pin version which usually means a 
300mil DIP version with Microchip.

Bruce