TLV320AIC3109-Q1: Characteristics of SDA and SCL Bus for Standard Mode and Fast Mode

Sadanori Kato

Part Number: TLV320AIC3109-Q1
Other Parts Discussed in Thread: TLV320AIC3120

Hi,

Could you please provide me the timing characteristics in detail on standard and fast modes for I2C bus specification?

Q1.
I can't find the following parameters which are specified on standard and fast modes in the I2C-bus specification (UM10204), so please tell me them regarding TLV320AIC3109-Q1.

- e.g. : fSCL, tLOW, tHIGH, tSU;DAT, tHD;DAT, tr, tf and so on

Q2.
According to TLV320AIC3109-Q1 datasheet, TLV320AIC3109-Q1 can support fast mode, but please let me know if there are any concerns when using the TLV320AIC3109-Q1 at 150kHz, 200kHz and 400kHz (SCK).

Best regards,
Kato

over 2 years ago

0 pdjuandi over 2 years ago

TI__Mastermind 29745 points

Hi,

These are normally quite standard, you can probably use the parameter from a similar device.

https://www.ti.com/lit/ds/symlink/tlv320aic3120.pdf?ts=1661187899522&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTLV320AIC3120

The fast mode covers up to 400KHz, so it should be ok for those frequencies.

Regards.

0 Sadanori Kato over 2 years ago in reply to pdjuandi

Guru 36530 points

Hi pdjuandi-san,

Thank you for your information.

Comparing the data sheets of TLV320AIC3109-Q1 and TLV320AIC3120, values such as tHD;STA, tSU;STA, tSU;STO are different. Are there detailed timing specifications for the TLV320AIC3109-Q1?

- TLV320AIC3109-Q1 I2C Timing Spec

-TLV320AIC3120 I2C Timing Spec

Best regards,
Kato

+1 pdjuandi over 2 years ago in reply to Sadanori Kato

TI__Mastermind 29745 points

Unfortunately not, but these parameters are normally very close to the standard I2C spec.

It's ok to use the other spec.

0 Sadanori Kato over 2 years ago in reply to pdjuandi

Guru 36530 points

Hi pdjuandi-san,

Thank you for your cooperation.

I understand.

Best regards,
Kato

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TLV320AIC3109-Q1: Characteristics of SDA and SCL Bus for Standard Mode and Fast Mode