Hello,
I was trying to interface my stm32l452 microcontroller with tfa9882 audio amplifier and had a few questions on how the data is transferred and signals involved.
1. Does the word select WS signal always need to oscillate/switch. What happens when I give an active low signal to the WS signal and how does the transfer happen? According to the datasheet, there is a period where the transfer doesn't happen. How to eliminate that?
2. How to send control settings and change the gain of the amplifier?
Hello Aishwarya Rajendran,
1. Does the word select WS signal always need to oscillate/switch. What happens when I give an active low signal to the WS signal and how does the transfer happen? According to the datasheet, there is a period where the transfer doesn't happen. How to eliminate that?
[A] Please check a document attached. The WS logic level selects the channel being transmitted.
[A] Your master defines the WS logic level and SCK clock timing. The TFA9882 was transferred to Goodix, please contact their support.
2. How to send control settings and change the gain of the amplifier?
[A] The TFA9882 was transferred to Goodix, please contact their support.
With Best Regards,
Jozef
