hello,I’m looking for a MCU,supported USB2.0HS& I2S@32bit*192kfs,

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hello,I’m looking for a MCU,supported USB2.0HS& I2S@32bit*192kfs,

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Contributor II

第一次提问不知道支持中文吗。

我要升级一个项目,需要把ADC采集的数据通过USB发给PC,需要找一个MCU。ADC是用的AK5572EN,32bit 768khz fs.

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Contributor II

@Magicoe Niu 员工

你好,LPC18xx 手册里明确提到可以支持到192khzpastedImage_1.png

但是在库lpc18xx_i2s.h里面却限制在96khz#define PRAM_I2S_FREQ(freq) ((freq>=8000)&&(freq <= 96000))

在LPC55S6x 手册里没有明确说支持192khzpastedImage_3.png

这两款芯片可以支持192khz以上吗?

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NXP Employee
NXP Employee

可以考虑LPC55S69系列,一路高速USB2.0, 4路全双工I2S.

也可以考虑LPC1830系列,一路高速USB2.0, 1路双工I2S。

Thank you!

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Contributor II

LPC55S69或者LPC1830的I2S最高能支持32bit 768kfps吗?

谢谢!

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NXP Employee
NXP Employee

YES

Thank you!
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NXP TechSupport
NXP TechSupport

HI WAYNE SUN 

How many USB HS and I2S interface do you need?

Have a nice day,

Jun Zhang

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104 Views
Contributor II

HI ZhangJennie 

One USB HS and one I2S.

I just want send the audio to PC.

Analog signal -->ADC-->Digital signal-->I2S-->MCU-->USB-->PC

The AK5572EN is a ADC(32bit 768khz ),it's supported I2S interface.

Is there any MCU have I2C support 32bit 768khz?

If no,how about 32bit 192khz?

Thank you!

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