请教TIBQ.exe工具在aic3204中滤波时怎么使用？

我在TI网站上下载了滤波参数计算的工具，但对工具中的参数有些迷惑，请帮忙提供指导，谢谢！

请问工具中的参数 FC，Gain BW，Q，S，O这几个参数具体是什么含义，对应aic3204中那些参数？

计算出来的结果形式如下，又应该怎么使用计算出来的参数，我参考了一些网上同仁使用滤波参数的例子，对已N0有三个字节，但用工具

计算出来的结果一个参数只有2个字节, 感到比较疑惑。

AIC3204_rset( 36, 0x6A ); // Left N0 H
AIC3204_rset( 37, 0xC3 ); // Left N0 M

 AIC3204_rset( 38, 0x6F ); // Left N0 L

Text "* Sample Rate = 8000"
Text "* Filter 1 EQ 3 Hz Fc 0.0 dB 0 Hz BW"

Text "* BQ: H(z) = (N0 + 2*N1/z + N2/(z2)) / (32768 - 2*D1/z - D2/(z2))"
Text "* Filter Coefficients in format N0, N1, N2, D1, D2"

Text "* 1O: H(z) = (N0 + N1/z) / (32768 - D1/z)"
Text "* Filter Coefficients in format N0, N1, D1"

Text "* Filter 1 BQ "
0x7FFF
0x800B
0x7FEC
0x7FF5
0x8014

  // set biquad A to low pass fc = 3628
    AIC3204_rset( 0, 8 ); // Select page 8
    AIC3204_rset( 36, 0x6A ); // Left N0 H
    AIC3204_rset( 37, 0xC3 ); // Left N0 M
    AIC3204_rset( 38, 0x6F ); // Left N0 L
    AIC3204_rset( 40, 0x35 ); // Left N1 H
    AIC3204_rset( 41, 0x61 ); // Left N1 M
    AIC3204_rset( 42, 0xB7 ); // Left N1 L
    AIC3204_rset( 44, 0x00 ); // Left N2 H
    AIC3204_rset( 45, 0x00 ); // Left N2 M
    AIC3204_rset( 46, 0x00 ); // Left N2 L
    AIC3204_rset( 48, 0xD5 ); // Left D1 H
    AIC3204_rset( 49, 0x3C ); // Left D1 M
    AIC3204_rset( 50, 0x91 ); // Left D1 L
    AIC3204_rset( 52, 0x00 ); // Left D2 H
    AIC3204_rset( 53, 0x00 ); // Left D2 M
    AIC3204_rset( 54, 0x00 ); // Left D2 L
   
    AIC3204_rset( 0, 9 ); // Select page 9
    AIC3204_rset( 44, 0x6F ); // Right N0 H
    AIC3204_rset( 45, 0x96 ); // Right N0 M
    AIC3204_rset( 46, 0x52 ); // Right N0 L
    AIC3204_rset( 48, 0x37 ); // Right N1 H
    AIC3204_rset( 49, 0xCB ); // Right N1 M
    AIC3204_rset( 50, 0x29 ); // Right N1 L
    AIC3204_rset( 52, 0x00 ); // Right N2 H
    AIC3204_rset( 53, 0x00 ); // Right N2 M
    AIC3204_rset( 54, 0x00 ); // Right N2 L
    AIC3204_rset( 56, 0xD0 ); // Right D1 H
    AIC3204_rset( 57, 0x69 ); // Right D1 M
    AIC3204_rset( 58, 0xAD ); // Right D1 L
    AIC3204_rset( 60, 0x00 ); // Right D2 H
    AIC3204_rset( 61, 0x00 ); // Right D2 M
    AIC3204_rset( 62, 0x00 ); // Right D2 L
   
    AIC3204_rset(0x00,44);     //High-pass first order butterworth Filter
    AIC3204_rset(0x0c,0x7c);   //Fc=40 Hz              
    AIC3204_rset(0x0d,0x73);         
    AIC3204_rset(0x0e,0xe4);       
    AIC3204_rset(0x0f,0x00);         
    AIC3204_rset(0x10,0xc1);         
    AIC3204_rset(0x11,0xc6);         
    AIC3204_rset(0x12,0x0f);         
    AIC3204_rset(0x13,0x00);         
    AIC3204_rset(0x14,0x00);         
    AIC3204_rset(0x15,0x00);         
    AIC3204_rset(0x16,0x00);         
    AIC3204_rset(0x17,0x00);         
    AIC3204_rset(0x18,0x3c);
    AIC3204_rset(0x19,0x73);         
    AIC3204_rset(0x1a,0xe6);        
    AIC3204_rset(0x1b,0x00);         
    AIC3204_rset(0x1c,0x00);         
    AIC3204_rset(0x1d,0x00);         
    AIC3204_rset(0x1e,0x00);        
    AIC3204_rset(0x1f,0x00);
   
    AIC3204_rset(0x00,45);  
    AIC3204_rset(0x14,0x7c); 
    AIC3204_rset(0x15,0x73);         
    AIC3204_rset(0x16,0xe4);       
    AIC3204_rset(0x17,0x00);         
    AIC3204_rset(0x18,0xc1);         
    AIC3204_rset(0x19,0xc6);         
    AIC3204_rset(0x1a,0x0f);         
    AIC3204_rset(0x1b,0x00);         
    AIC3204_rset(0x1c,0x00);         
    AIC3204_rset(0x1d,0x00);         
    AIC3204_rset(0x1e,0x00);         
    AIC3204_rset(0x1f,0x00);         
    AIC3204_rset(0x20,0x3c);
    AIC3204_rset(0x21,0x73);         
    AIC3204_rset(0x22,0xe6);        
    AIC3204_rset(0x23,0x00);         
    AIC3204_rset(0x24,0x00);         
    AIC3204_rset(0x25,0x00);         
    AIC3204_rset(0x26,0x00);        
    AIC3204_rset(0x27,0x00);
    AIC3204_rset(0x00,0x2c);        
    AIC3204_rset(0x01,0x05);

AIC3204的滤波器参数本身就是16bit的。算出来的直接放到EQ寄存器中机壳

请问你的AIC3204是外部MCU通过I2C对它进行配置的吗？

我的QQ：365652555，有机会一起探讨下。

Hi,

You can change the resolution box to get 3 bytes@24 bits. See below.

这个链接有详细的使用说明，请参考：http://www.deyisupport.com/question_answer/f/42/p/14944/51797.aspx#51797