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TAS5825M: 只有48khz及以下采样率可用

Part Number: TAS5825M
Other Parts Discussed in Thread: PCM1794

 使用USB音频桥为TAS5825M提供I2S信号,再通过MCU配置完TAS5825M后读取其寄存器数值,发现reg57(0x39)即 CLKDET_STATUS Register显示为0b1000报错,datasheet中指示错误为(:This bit indicates whether the PLL is locked or not. The PLL is reported as unlocked when the PLL is disabled.)。

此时,I2S信号在48khz/24bit 44.1khz/24bit是可正常播放声音的,但是当通过PC端将I2S信号手动切换为48khz以上采样率(如96khz/192khz)后,TAS5825M便输出直流信号,不能正常播放声音。经查,I2S信号正常,其在PCM1794上使用高于48khz的采样率时可正常播放声音,所以只可能是TAS5825M的问题。请问这应该如何解决?

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