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Topics - Leopard

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Schematics and Layouts / 2x11W stereo amplifier [TDA7360]
« on: October 19, 2009, 12:40:27 PM »
Hi all!

First of all, here's a link to the TDA7360 PDF: http://www.datasheetcatalog.org/datasheet/stmicroelectronics/1499.pdf

I've tried to make my own PCB layout now. I made a breadboard version which is completed with pretty much the same schematic, and now I would like to take this project to the next step.

List of parts in my layout:

C1 = Input capacitor, value 220nF
C2 = see C1
C3 = Output capacitor, value 2200uF 16V, Low ESR
C4 = see C3
C5 = Power filtering capacitor, value 3300uF 25V, Low ESR
C6 = Stand-by capacitor, value 47uF 25V
C7 = Power filtering capacitor, value 680nF
C8 = see C7
C9 = SVR capacitor, value 220uF 25V, Low ESR
J1 = metal jumper which connects C9 and pin 7 of TDA7360

Any comments on the chip itself, the capacitor values etc. ideas are welcome. ;)



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The Newcomer's Forum / Own simple schematic - comments wanted
« on: May 11, 2009, 01:39:47 PM »
Hi all,

I just made this simple LM386-schematic, and would like to get some suggestions etc. regarding it. It is sort of based on the Little Gem / Ruby plus common sense, so nothing original here, just a cost-cutting variation. All feedback is welcome! :)

And a couple of questions:

1. Pin 7 is bypass, do I have to connect it to ground or can I just leave it open? Additionally, in the Ruby schematic, theres a 100nF cap before ground, what does it do?
2. What do I benefit if I added a 47nF input cap?
3. What are the 10ohm resistor + 47nF cap after output pin 5 for in the Ruby schematic? Noise filtering?



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