Dear Expert,
I would like to know the specifications about TAS2562
Please teach us about TAS2562 of Audio Amplifier.
We designed our equipment using TAS2562 for Audio spearker.
I have a speaker connected to the TAS2562 and am outputting sound.
Normally, it works fine. However, when I play loud sound, the limit function of the TAS2562 is activated and no sound is output from the speakers.
If I turn down the sound on the sound source side, there is no problem.
The cause of the limit function can be found in the following table.
Lutched interrupt Readback 0 Field Descriptions
Bit1=1 which means interrupt due to over current error.
I think TAS2562 work the protect and cause by the sound turned up too loud.
TAS2562 work the function. No sound was produced due to over current being detected.
1. Is it correct? an over current was generated by making the sound louder?
2. In which part of TAS2562 did the over current occur?
3. Where terminal (pin) or what part of the TAS2562 caused the over current?
4. Power Control Field Description
In Bit 3, ISNS_PD is default 1 and I-sensen is powered down, but does the over current function?
5. External PVDD supplies +10V from outside to make the sound louder.
5. When PVDD is connected externally, the application note is wrote that +10V is connected to the VBST pin, is this correct?
6. The datasheet page 49 of TAS2562,
When driving the Class-D amplifier using an external supply through the PVDD pin, the boost should be disabled and the VBST pin can be left floating.
Do not drive an external voltage on the VBST pin.
Which is sorrect No.5 or No.6?
7. When PVDD coneced the External PVDD supplies +10V, VBST connected External PVDD then the TAS2562 fail or detected over current.
8. I would like to know, how to I could make the sound as loud as possible useing to connect PVDD +10V external.
for exsample, there any register where I can adjust it?
Sincerely,
