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TLV320AIC3104: TLV320AIC3104 POP 声问题

Part Number: TLV320AIC3104


用到两组Line-out通道,外接功放设备。

我们有尝试增加电子开关(Mute),但效果仍不理想。 AVDDDACLine-out通道开启/关闭对PoP均有影响(上电初期,播放开启,关闭播放等),部分PoP可消除,但仍有些无法消除

有参考HP寄存器配置:TLV320AIC3104: the HP outs creat a 'pop' noise when powering up DAC - Audio forum - Audio - TI E2E support forums

  • 您好,

    有客户发现以下操作可以减低POP,您可以尝试一下吗?即在对register 93操作时,通过register 0x01 bit 7 software reset ,然后经过2ms,再将register 93 写 0x09 以启用 line out。software reset需要100us

    https://e2e.ti.com/support/audio-group/audio/f/audio-forum/944816/tlv320aic3104-q1-line-out-pop-noise-when-used-in-single-end-mode?tisearch=e2e-sitesearch&keymatch=TLV320AIC3104%2525252520pop#