[yejun]

there's a taiwan website selling cs3122 kit.

 

[ProFingerSk8er]

Quote:

Originally posted by yejun there's a taiwan website selling cs3122 kit.

link please?

 

[yejun]

Quote:

Originally posted by ProFingerSk8er link please?

cs43122 kit
PCB
(chinese)

hope it won't be sold out so soon, i haven't bought yet.

 

[[so]hai(R)]

er? the pcb and the kit are sold separately?

this definately not for portable...

hey yejun, where r u from? taiwan? hk? china?

 

[yejun]

China, but in states now.
the kit includes pcb of cos.

 

[yejun]

DIR1702, are you sure?
I only found 1701 and 1703.

 

[[so]hai(R)]

hihi..sorry my bad...it's DIR1703...

 

[yejun]

Do you have toslink receiver?

 

[[so]hai(R)]

i got one.... but not sure whether it's suitable.... it's actually for industry fiber optic... like server I/Os... but i think that should be ok... have u find one?

 

[yejun]

digikey have torx 179.

another question, if use pll clock, does that mean no external crystal is needed?
and all different clock speed which is best?

 

[[so]hai(R)]

no... u still need the main system clock input in order to operate the 1703.... ppl is used on the system clock out... that's mean u need a main clock for input, then 4 output clock, u can either choose ppl or cyrstal mode....

for the clock speed, there is no best speed.. all depend on the sampling frequency u want, i used 12.288Mhz...
which is 128fs..

 

[yejun]

Just back from theater, matrix reloaded isn't too bad.

So in pll mode, the output clock will follow the source, why the crystal speed will matter?
I am thinking run the dir and mic by one crstal or clock.

 

[[so]hai(R)]

hmm... i think u misunderstood, in ppl mode the clock out will follow what u configured at SCF0 and SCF1... while in crystal mode, the output clock will follow the main clock...

the speed is important 'cos it's a product of the sampling frequency, fs, e.g. 128x96KHz=12.288Mhz

Actually u can run from single source, i don't see any problem with that... but make sure u got the clock speed accurate at DIR.. it's not that important for PIC....

I left the project too long... now i need to dig and study the datasheet back...

p/s: i wanted to watch the Matrix as well.... but my exam is tomoro....

 

[yejun]

good luck on your exam. let's discuss tomorrow.

 

[[so]hai(R)]

ok..thx...