This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
我也碰到了,将5548拆下来。焊了片5558上去。也是晶振不起振。不知道如何是好
TI的官方回复
Please modify TAS5548EVM as below if replacing TAS5548 with TAS5558 on TAS5548EVM since TAS5558 doesn't support the external crystal.
- Modification
1. Remove C17, C18, Y2 and R23
2. Replace C18 with 18.2kΩ Resistor(1% Tolerance)
3. Assemble R24 with 47Ω Resistor
4. Replace TAS5548(U1) with TAS5558
看下引脚排列情况,TAS5558的Pin11 为MCLK引脚, Pin10 是ASEL_EMO2。
而TAS5548的Pin10 和Pin11 为XTAL的输入输出。
从TAS5558的引脚定义来看,并没有外部晶振输入引脚。