Electronics > Projects, Designs, and Technical Stuff
Small and cheap MCU with DAC
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Unixon:
Hi,

Can anyone suggest a cheap MCU with a single DAC channel capable of about 30-50kSPS for sound playback.
Small SMD package in range SOT23-SO8-QFN20 is preferred, TSSOP20 and alike is nearly largest acceptable package.
technix:

--- Quote from: Unixon on December 16, 2018, 02:02:50 pm ---Hi,

Can anyone suggest a cheap MCU with a single DAC channel capable of about 30-50kSPS for sound playback.
Small SMD package in range SOT23-SO8-QFN20 is preferred, TSSOP20 and alike is nearly largest acceptable package.

--- End quote ---

Are you okay with two-chip solutions? If so, there are multiple I2S DAC in MSOP-8 or smaller packages that can go along with a STM32F030 or STM32F042 in TSSOP-20 or QFN-28. Those runs at least 48ksps, often 96ksps.
Wimberleytech:

--- Quote from: Unixon on December 16, 2018, 02:02:50 pm ---Hi,

Can anyone suggest a cheap MCU with a single DAC channel capable of about 30-50kSPS for sound playback.
Small SMD package in range SOT23-SO8-QFN20 is preferred, TSSOP20 and alike is nearly largest acceptable package.

--- End quote ---

SiLabs C8051F411 has two current DACs and comes in a 20 pin QFN package.
wraper:
Most of Silabs EFM8 laser bee family have 2/4 12 bit 200ksps voltage DACs. EFM8BB3 series have them too. They also should have ARM with more advanced DACs as well. Their MCUs are pretty good in analog part.
technix:

--- Quote from: Wimberleytech on December 16, 2018, 03:35:42 pm ---
--- Quote from: Unixon on December 16, 2018, 02:02:50 pm ---Hi,

Can anyone suggest a cheap MCU with a single DAC channel capable of about 30-50kSPS for sound playback.
Small SMD package in range SOT23-SO8-QFN20 is preferred, TSSOP20 and alike is nearly largest acceptable package.

--- End quote ---

SiLabs C8051F411 has two current DACs and comes in a 20 pin QFN package.

--- End quote ---
Is that thing fast enough though... And it is a 12-bit job.
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