TLV320ADC3101: Can the MCLK pin (which is unused) be grounded?

Veselin Georgiev

Part Number: TLV320ADC3101

If we're not using the MCLK pin of the TLV320ADC3101 (the MCLK signal is generated via PLL from BCLK), can the pin be connected to digital ground? The alternative is to leave it floating.

Grounding it would be best for PCB routing reasons.

Kind regards, Veselin

over 3 years ago

+1 Jeff McPherson over 3 years ago

TI__Mastermind 48515 points

Hi Veselin,

Because the device uses a multiplexer to determine which clock source to use for the PLL generation, there shouldn't be a problem with grounding MCLK. However if you run into any issues, I would try to leave it floating.

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TLV320ADC3101: Can the MCLK pin (which is unused) be grounded?