Building my first LM1875 amp

aditya · 6th March 2010, 02:27 AM

hiii

i m building a LM1875 + PGA2311 with 3 input relay selection- confused for how to do hte pcb for 1875 , i have made a few layout could the gurus out here help me with it, hmmm only one thing is that i dont have schematics, all the designs are on datasheet diagrams also for the pga2311,

also if icould make one single pcb for 3 relays + PGA2311 + 1875 (2) than that would be just perfect , a small single sided 6"X4" or maby be a litter smaller so could probably do away will maximmum of the wiring
currently i just have pga2311 and relays on one board

pra3718 · 6th March 2010, 08:11 AM

Search Thread = lm1875 pcb layout for gainclone.

aditya · 8th March 2010, 04:48 PM

Quote:

Originally Posted by pra3718

Search Thread = lm1875 pcb layout for gainclone.

how is this layout ... , Today got my samples from N.S.C.

kuldeepsingh · 9th March 2010, 03:58 AM

this one looks good, make a PCB yourself by toner transfer method.

aditya · 9th March 2010, 02:51 PM

Quote:

Originally Posted by kuldeepsingh

this one looks good, make a PCB yourself by toner transfer method.

hey thanks i was scared as to was it ok or good or bad or useless i m going to do a toner transfer only,,,

i m confused for should i keep the PGA2311 with 3 relay and that RCA connector on the amplifier board or just connect the thing via wire to the amp input,

6th March 2010, 02:27 AM	#1
aditya diyAudio Member Join Date: Mar 2010 Location: Bombay, India	Building my first LM1875 amp hiii i m building a LM1875 + PGA2311 with 3 input relay selection- confused for how to do hte pcb for 1875 , i have made a few layout could the gurus out here help me with it, hmmm only one thing is that i dont have schematics, all the designs are on datasheet diagrams also for the pga2311, also if icould make one single pcb for 3 relays + PGA2311 + 1875 (2) than that would be just perfect , a small single sided 6"X4" or maby be a litter smaller so could probably do away will maximmum of the wiring currently i just have pga2311 and relays on one board

9th March 2010, 03:58 AM	#4
kuldeepsingh diyAudio Member Join Date: Aug 2006 Location: Chennai, India	this one looks good, make a PCB yourself by toner transfer method. __________________ . . .. ... ..... ........ ............. ..................... .................................. My Best LM3886 PCB layout

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6th March 2010, 08:11 AM	#2
pra3718 diyAudio Member Join Date: Jan 2009	Search Thread = lm1875 pcb layout for gainclone.

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