Hi,
I am trying to operate a DSD1794A in 24-bit, 192kHz in PCM (I2S) mode on a custom PCB, but without success. :-(
I am sending data only when L-CH frame (PLRCK=Low). I've changed the OS[1:0] bits in register 20, to 0x01 value (reg+data = 0x1401).
My clocks are:
- PBCK = 12.288 MHz
- PLRCK = 192 kHz
- SCK = 24.576 MHz
I get REALLY strange stuff at the analog output, far-far away from the 1kHz sine I supposed to see. I get something ugly - like chopped 20Hz sine, at low quantization.
Scope of a 16bit signal at PDATA & PLRCK pins (don't mind the ringing at PLRCK signal - it's my oscilloscope issue...):
Signal at L-CH analog output (10mS/div, probing directly at pins 25 + 26 of DSD1794 chip):
Am I doing something wrong?
