Hi,
In my design stereo signals from Radio IC (Single-ended) uses MIC1LP and MIC1RP inputs for headphone or speaker output.
1-LP and RP unite at ADC. Also, LP RP unites directly after the DAC without any conversion operation so is this the way to get analog output?
2-Is MIC1LM passes through DAC after ADC?
3-Radio Chip is supplied with 5V so can I connect signals directly or do I need to change the voltage level?
Best Regards.
Hi,
1. You can mix LP and RP at the analog side shown in the red or through ADC with the blue and configure the loopback in the register.
2. You can use the loopback shown above for LP and LM to route ADC to DAC.
3. Per the ADC spec, this is the full-scale analog input, so your analog input level has to be 0.707Vrms.
Regards.
Hi,
1-LM and LP shall united at + so what should I give to the - side? (Signals are single-ended)
2-What should be the register configuration for my application according to the attached tables?
Best regards.
1. LP combine with LM in ADC PGA+ and VCOM will be in ADC PGA-.
2. See below
