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TAS5766M: 音量增益设置?

Part Number: TAS5766M
Other Parts Discussed in Thread: TAS5768M,

Volume block, from -110 db to +6 dB with 0.5 dB steps, including a fixed gain block of 0dB to 12 dB gain.

你好,这句话怎么理解?我找不到关于音量寄存器的操作说明,无意中找到一份liunx驱动Linux Driver for TAS5766M and TAS5768M (SmartAmp Mode).zip里面有-110到6db的数组 设置的是page44,reg08 开始的4字节。但PPC3能设置到最多17.99db。通过生成的头文件对比看,音量影响的寄存器参数不止page44,reg08。还有page44,reg0x20-0x26。能否提供清晰的说明关于TAS5766M音量增益部分?

  • 您好, 您的思路是对的, 您在哪儿下载的Linux driver? 参考这篇FAQ关于TAS5766M的Linux driver, C code中能看到哪些寄存器是调节音量的.

    https://e2e.ti.com/support/audio-group/audio/f/audio-forum/719216/faq-linux-linux-drivers