TDA1543 DAC

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Jempie

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Joined 2008
#1
Hi,

I have several TDA1543 dac with logo Philips, NPX, only Philips.
I use the Mini 1543 dac that use the Philips dac

When I change the dac for other 1543 only noise.

Are the other dac fake or are there several different type's

Thx
 
#3
kevinkevin said:
Please post photos of the 'fake' dacs
Click to expand...

I'm not sure they are fake, that's why i need to know if there are different
type of TDA1543 is there any way to measure them

images.jpg
this one give noise
 

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#4
may be similar probvlem

Hi
I have a similiar problem with the nxp marked TDA 1543 chip.
see my post here

http://www.diyaudio.com/forums/digital-line-level/259097-real-tda-1543-a.html

I sourced the chip from adeleparts , ebay.
Where do you source the TDA 1543 ?
manage to solve the problem yet ?

I am planning to change the value of the I ref and output resistors to try .
I have no luck with 1K I ref and 1.5 K IV resistor .
i get white noise that you hear in between FM stations
 
#5
kp93300 said:
Hi
I have a similiar problem with the nxp marked TDA 1543 chip.
see my post here

http://www.diyaudio.com/forums/digital-line-level/259097-real-tda-1543-a.html

I sourced the chip from adeleparts , ebay.
Where do you source the TDA 1543 ?
manage to solve the problem yet ?

I am planning to change the value of the I ref and output resistors to try .
I have no luck with 1K I ref and 1.5 K IV resistor .
i get white noise that you hear in between FM stations
Click to expand...

both with the same noise, the one with Philips logo if you start the music you hear an few seconds music then noise

still no original tda 1543 found
 
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