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TLV320AIC3100设置DAC采样频率8KHz,但测量结果却是44.1KHz



开发环境:TI公司的DEMO板—— ACEV-1B

我利用利用图形界面配置工具,设置了PLL: P=1, R=1, J=8, D=1920, NDAC=48, MDAC=2, DOSR=128

对应的Page0的寄存器设置为:R4=0X07, R5=0X91, R6=0X06, R7=0X20, R8=0X4B; R11=0X84, R12=0X94, R13=0X00, R14=0X80。

照说得出来的DAC采样频率的值是8KHz的,但通过利用逻辑分析仪测量板子上的WCLK测试点TP3,得到的却是44.1KHz。

请问一下,这是为什么?