老师，您好！我在设计一款HI-FI播放器，使用TPA6120A2作为耳机放大芯片，用反向输入，请问是否可以设置放大倍数小于1吗？因为现在的播放器对噪声要求很严格，我现在增益设置为1倍，还是能够听得到一点噪声，所以我想降低点增益，比如到0.9倍。
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