![]() But if you just want to build the boombox, think about buying a switched 12V power supply. If your objective is learning, go on with your project. user guide um1724 user manual stm32 boards (mb1136) introduction the stm32 boards based on. It would be better if the amplifier could run directly with the rectified 15V output from transformer, and the LM317 circuit will be used only for the digital part feeding 10v to the microcontroller (I didnt't read the MCU's datasheet does it really needs those 10V? You may need for some kind of level shifting to connect this MCU with the digital inputs of TAS6424L) There's no need to reduce the 15V input for power the amplifier, and it's not advisable for a power-hungry device like this. Its audio amplifier part can support a 4.5V to 18 V power supply. ![]() This is a linear amplifier with digital inputs. Look at item 7.1 of TAS6424L-Q1 amplifier's datasheet:ĭefinitely, this amplifier needs much more than only 15 mA. The amplifier part of this chip needs a lot of amperes for the audio amplifier part (PVdd in datasheet). Ivdd = 15mA is the requirement for just the logic (digital) part of this chip, whose voltage is "V Logic". Though I tried replacing MCU on Nucleo-L452RE with STM32L4P5RET6, and its working fine without any issues so far. This is a linear amplifier with digital inputs. I am asking if I can replace the Onboard MCU from Nucleo-F446RE with STM32L4P5RET6, and expect the Board to program STM32L4P5RET6. I fear that you are looking at the wrong parameters of this chip. The ST Nucleo-F446RE board includes an on-board ST-LINK V2 programmer. ![]() What kind of "boombox" is this, that its amplifier draws only 15 mA? Datasheet Datasheet Reference Manual Reference Manual Programming.
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