TAS5825没有输出

各位好!

最近使用TAS5825做1KHZ的标准音源,发现TAS5825没有输出,有几个问题

1.TAS5825的寄存器配置问题,上电默认是page0 吗?上电直接可通过IIC配置寄存器?因为我上电后某些寄存器读出和默认值是一致的,

有些不一致,比如ID读的就是0x00.

2.上电后根据datasheet,第3步 then start SCLK,LRCLK, TAS5825做从机,这个意思是我主控发送数据吗?

9.5.3.1 Startup Procedures
1. Configure ADR pin with proper setting for I2C device address.
2. Bring up power supplies (it does not matter if PVDD or DVDD comes up first).
3. Once power supplies are stable, bring up PDN to High and wait 5ms at least, then start SCLK, LRCLK.
4. Once I2S clock are stable, set the device into HiZ state and enable DSP via the I2C control port.
5. Wait 5ms at least.Then initialize the DSP Coefficient, then set the device to Play state
6. The device is now in normal operation

3.假设我不更改寄存器的配置,根据默认值可以驱动TAS5825吗?

我主控设定的是IIS MASTER ,IIS模式 FS=96K, 24bit,这和TAS5825 的默认参数一致的。

以梦为马