Unfortunately I am not an expert, just a music lover, so the tecnical matters are not very clear for me, therefore will stay on simple explanations and ask questions when it is difficult to understand.
Thanks for understanding
Thanks for understanding
Hi, I think I have replied already but just in case will repeat - I am trying to implement a very simple DAC based on TDA 1543, the shematics proposed years ago by Jean Paul. Since I am not a technician it is a problem to get oriented in the data sheets or so. So just a tutorial for a newbee will be appreciated.
Thanks
Thanks
Without schematic it is next to impossible to know for sure how to configure that board.
Here is what I would try:
1. Add SPDIF coax cable input circuit to RXP and RXN (see CS8412 datasheet figure A4)
2. Connect BCK, LRCK, SDATA and GND to your TDA1543 board (BCK, WS, DATA, GND)
3. Set dip switch M0-M3 for I2S output. I assume this would be as in ebay item picture.
4. Add jumper (or short) J3. I assume this is needed based on another ebay item picture.
Here is what I would try:
1. Add SPDIF coax cable input circuit to RXP and RXN (see CS8412 datasheet figure A4)
2. Connect BCK, LRCK, SDATA and GND to your TDA1543 board (BCK, WS, DATA, GND)
3. Set dip switch M0-M3 for I2S output. I assume this would be as in ebay item picture.
4. Add jumper (or short) J3. I assume this is needed based on another ebay item picture.
Noted, thanks. I have done exactly that time ago without result. Have shortened also ST1 as suggested. Here is the only instruction from the seller -
The current version is CS8412CS SOP28 package
The colors are green and white, the default is green
CS8412 digital receiving board SPDIF coaxial receiving board coaxial to I2S,
1. When used alone, ST1 is shorted and J3 is shorted, and the signal is input from the two pins of RxP GND
2. If you want an external crystal oscillator, please select a 5V 11.2896M crystal oscillator, J3 is disconnected, and U2 selects 74HC4040
3. The red DIP switch corresponds to CS8412 M0 M1 M2 M3, the working mode of CS8412 can be set, please refer to CS8412 specification for details
ON=0, OFF=1
Thanks
The current version is CS8412CS SOP28 package
The colors are green and white, the default is green
CS8412 digital receiving board SPDIF coaxial receiving board coaxial to I2S,
1. When used alone, ST1 is shorted and J3 is shorted, and the signal is input from the two pins of RxP GND
2. If you want an external crystal oscillator, please select a 5V 11.2896M crystal oscillator, J3 is disconnected, and U2 selects 74HC4040
3. The red DIP switch corresponds to CS8412 M0 M1 M2 M3, the working mode of CS8412 can be set, please refer to CS8412 specification for details
ON=0, OFF=1
Thanks
Ok, so my suggestion was more or less correct. If it still does not work there is not much else to do. Check that your TDA1543 is not A version (TDA1543A) as that uses so called japanese input format instead of I2S. If you have another dac with I2S input you could check if the CS8412 board works.
Thanks for your attention, I have checked both CS and TDA and replaced them just in case. They are OK so maybe the board itself is damaged.
CS8412 board is very simple so it is not likely to be damaged (other than CS8412 chip itself). You should check that the incoming SPDIF is ok e.g. if you have a computer with SPDIF input.
Do you have a picture showing how your devices are connected? Have you added the LED and does it light up with incoming SPDIF?
I assume the LED is for indicating SPDIF lock. If it lights up with incoming SPDIF the board should be working.
Could be so. There is only 1.35 V DC there - is it normal ?? A small LED - 3 V shoul de OK there ??
Thanks
Thanks
Normal red or green LED should work.
Typically CS8412 SPDIF lock indicator is connected to either pin 28 VERF or 25 ERF. The former goes low with lock and the latter high without lock.
Typically CS8412 SPDIF lock indicator is connected to either pin 28 VERF or 25 ERF. The former goes low with lock and the latter high without lock.
I'm trying to adapt a Toslink receiver in my old Sony mini system (MHC GT222), so it can receive audio from my new Samsung TV (I prefer the Sony's bass over these current TV soundbars). Which finished DAC module would you recommend to me, which had a good level of output?
Why not feed the ic with an USB amareno (that has SPIDF input too) or any cheap US to I2Sboard, then use for the TC a spidf toslink to USB converter, you have the isolation and voila, patatra ! But as said newvirus, maybe costing too much for a TDA1545. Not it was bad sounding (good trebles AFIR, but there are cheap better PCM IC for instance PCM56 that cost is ridiculous low for the good sound in a salad to salad comparison).