PCB layout for TDA1557Q

syber · 6th January 2007, 05:36 PM

Hi all,

i'm new to this forum and i want to make a power amplifier with TDA1557Q.

Can anyone please provide me the layout.

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netrino · 6th January 2007, 07:06 PM

Hi! i'm new here...

recently i've build the same amplifier Syber wants to build...

http://www.nxp.com/acrobat/datasheet...557Q_CNV_2.pdf

somewhere in the PDF says that if we connect pin 12 with two diodes to the ground then the distortion is reduced...

can someone tell me what kind of diodes do i need and how i connect them? (i have some BA159 spare...)

@Syber the TDA1557Q is very simple to construct it...you can even building in a bread board.

formula 22 · 15th November 2011, 01:09 AM

Hello all!
And I seek PCB for this amplifier.
thanks

kuldeepsingh · 16th November 2011, 02:50 PM

what friend. do u really need a PCB layout for TDA1557Q??

its the simplest amplifier chip available with zero component count. Simply solder the IC on a general purpose PCB and solder pin headers for input and output. put 2 caps for power supply filtering. And you got a working 4 ch amplifier

yliroma · 13th December 2011, 04:45 PM

How to solder such a Chip-Amp on the commercial experimental PCB's ?
The usual ones have a pace of 2.54 mm.
Chips have the front-pin's-line spaced 2.54mm ; the back-pin's-line is spaced 2.54mm as well but misaligned with respect to the Front one.
Any suggestion on "how to do" ?

16th November 2011, 02:50 PM	#4
kuldeepsingh diyAudio Member Join Date: Aug 2006 Location: Chennai, India	what friend. do u really need a PCB layout for TDA1557Q?? its the simplest amplifier chip available with zero component count. Simply solder the IC on a general purpose PCB and solder pin headers for input and output. put 2 caps for power supply filtering. And you got a working 4 ch amplifier __________________ . . .. ... ..... ........ ............. ..................... .................................. My Best LM3886 PCB layout

13th December 2011, 04:45 PM	#5
yliroma diyAudio Member Join Date: Dec 2011 Location: Rome - Italy	H.W. mounting TDA-xxxx on Experimental PCB How to solder such a Chip-Amp on the commercial experimental PCB's ? The usual ones have a pace of 2.54 mm. Chips have the front-pin's-line spaced 2.54mm ; the back-pin's-line is spaced 2.54mm as well but misaligned with respect to the Front one. Any suggestion on "how to do" ?

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6th January 2007, 07:06 PM	#2
netrino diyAudio Member Join Date: Jan 2007	Hi! i'm new here... recently i've build the same amplifier Syber wants to build... http://www.nxp.com/acrobat/datasheet...557Q_CNV_2.pdf somewhere in the PDF says that if we connect pin 12 with two diodes to the ground then the distortion is reduced... can someone tell me what kind of diodes do i need and how i connect them? (i have some BA159 spare...) @Syber the TDA1557Q is very simple to construct it...you can even building in a bread board.

15th November 2011, 01:09 AM	#3
formula 22 diyAudio Member Join Date: Sep 2011 Location: El Triunfo	Hello all! And I seek PCB for this amplifier. thanks

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