Single layer LM3886 planning for PCB samples - Page 2

sivan_and · 12th March 2012, 04:14 PM

Dear kulddepJee,...nice to hear that u still paly with Chip amps..btw whci program do u use

kuldeepsingh · 12th March 2012, 05:10 PM

Hello sivan ji... thanks for the comments

... i am using eagle now...
eagle pcb software. its quite easy to use.

neeraj · 30th March 2012, 09:18 AM

Good job Bro!!

kuldeepsingh · 30th March 2012, 10:48 AM

hoping to receive first supply of PCBs today

neeraj · 30th March 2012, 10:50 AM

By the way could you please specify Pitch of Power Capacitor. Snap in type will work ??
Please Post snap of finished PCB .

kuldeepsingh · 30th March 2012, 11:02 AM

pitch is 5 mm to 7.5 mm, both can come. i'll post pic as soon it comes.

jaycee · 30th March 2012, 10:50 PM

Do you want the mute function? If not, just wire the mute pin to -V via 22Kohms. No need for the extra parts then

kuldeepsingh · 31st March 2012, 06:45 AM

@jaycee. Ya, thats why i provided jumpers, simply put a jumper there or connect a push-on-switch if you want a seperate mute switch

kuldeepsingh · 31st March 2012, 07:12 AM

Got the PCBs

Yippee
received 18 PCBs today...

(only issue i found was the smaller holes for the IC mounting, i have to enlarge it manually only)
any1 interested to buy, available for 150 INR per piece

kuldeepsingh · 12:06 PM

Finished amplifier modules...

One PCB with basic components and second PCB with all extra components (Output inductor and resister, 220pF, 47pF and 22K and with cable provision for mute switch).

One small issue in PCB track was one pad of 220pF was not connected. And another thing was i forgot to apply thermals

Last image shows simple Power supply using 10 Amp rectifier module and 10,000uF caps.

12th March 2012, 04:14 PM	#11
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	Dear kulddepJee,...nice to hear that u still paly with Chip amps..btw whci program do u use __________________ SivanandBalan

12th March 2012, 05:10 PM	#12
kuldeepsingh diyAudio Member Join Date: Aug 2006 Location: Chennai, India	Hello sivan ji... thanks for the comments ... i am using eagle now... eagle pcb software. its quite easy to use. __________________ . . .. ... ..... ........ ............. ..................... .................................. My Blog

30th March 2012, 09:18 AM	#13
neeraj diyAudio Member Join Date: Dec 2005 Location: New delhi	Good job Bro!! __________________ Neeraj

30th March 2012, 10:48 AM	#14
kuldeepsingh diyAudio Member Join Date: Aug 2006 Location: Chennai, India	hoping to receive first supply of PCBs today __________________ . . .. ... ..... ........ ............. ..................... .................................. My Blog

30th March 2012, 10:50 AM	#15
neeraj diyAudio Member Join Date: Dec 2005 Location: New delhi	By the way could you please specify Pitch of Power Capacitor. Snap in type will work ?? Please Post snap of finished PCB . __________________ Neeraj


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30th March 2012, 11:02 AM	#16
kuldeepsingh diyAudio Member Join Date: Aug 2006 Location: Chennai, India	pitch is 5 mm to 7.5 mm, both can come. i'll post pic as soon it comes. __________________ . . .. ... ..... ........ ............. ..................... .................................. My Blog

30th March 2012, 10:50 PM	#17
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	Do you want the mute function? If not, just wire the mute pin to -V via 22Kohms. No need for the extra parts then

31st March 2012, 06:45 AM	#18
kuldeepsingh diyAudio Member Join Date: Aug 2006 Location: Chennai, India	@jaycee. Ya, thats why i provided jumpers, simply put a jumper there or connect a push-on-switch if you want a seperate mute switch __________________ . . .. ... ..... ........ ............. ..................... .................................. My Blog

31st March 2012, 07:12 AM	#19
kuldeepsingh diyAudio Member Join Date: Aug 2006 Location: Chennai, India	Got the PCBs Yippee received 18 PCBs today... (only issue i found was the smaller holes for the IC mounting, i have to enlarge it manually only) any1 interested to buy, available for 150 INR per piece __________________ . . .. ... ..... ........ ............. ..................... .................................. My Blog

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