It doesn't work like that... this ADC will bring more background noise, harmonic distortions etc. than others to the signal you send to it... than others more qualitative... that's all... too bad...
For fun I ask an AI about the ADC used in WiiM Ultra.
"The PCM1861 from Texas Instruments is generally well-regarded as a high-quality audio ADC (Analog-to-Digital Converter). It offers 110dB Signal-to-Noise Ratio (SNR) and supports up to 192kHz/32-bit digital output. This makes it suitable for audiophile-grade applications and high-resolution audio.
It's used in devices like the WiiM Pro Plus, which highlights its capability for high-fidelity audio processing. If you're looking for a reliable ADC for high-quality audio applications, the PCM1861 is a solid choice.
Here are the detailed specifications for the PCM1861 ADC from Texas Instruments:
### Key Features:
- **Signal-to-Noise Ratio (SNR)**: 110 dB
- **Sampling Rate**: 8 kHz to 192 kHz
- **Number of Channels**: 2-channel
- **Input Range**: Single-ended, 2.1 V RMS full-scale input; Differential, 4.2 V RMS full-scale input
- **Gain**: Programmable Gain Amplifier (PGA) with fixed gain options of 0 dB, 12 dB, and 32 dB
- **Power Supply**: Single 3.3 V operation
- **Power Dissipation**: < 85 mW at 3.3 V
### Additional Features:
- **Hardware Control**: PCM1861 supports hardware control for volume adjustments.
- **Integrated Audio PLL**: High-performance audio phase-locked loop for stable operation.
- **Energy-Sense Audio Content Detector**: For auto system wakeup and sleep.
- **Automatic PGA Clipping Suppression Control**: To prevent clipping and distortion.
- **PCB-Footprint Compatibility**: Across all devices in the PCM186x family for easy integration."
So not all agree it's bad
