In the current market, many popular and effective dongles utilize the chip, often paired with a companion chip like the Maxim MAX97220 for amplification. Other products might use chips from Realtek or ESS. The key specification to look for is PCM (Pulse-Code Modulation) support , which is the standard for digital audio. Many modern dongles, including the CX31993-based ones, support up to 32-bit/384kHz playback, which is considered Hi-Res Audio certified and far exceeds the quality of standard streaming services.
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