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PCM1789: ADR6 setting question

Haiwen Huang

Intellectual 1740 points

Part Number: PCM1789

Dears:

i noticed that ADR6 has two status :0 and 1, but follow the datasheet I can't find detailed difference between them , could you please help give a explicatory introduction ? Thanks .

over 3 years ago

0 Paul_Frost over 3 years ago

TI__Guru 53433 points

Hi Haiwen,

The ADR6 bit is in the SPI address byte. This allows you to have two PCM1789 on a single SPI bus with a shared CS line. The two devices differentiate themselves by the status of the ADR6 bit.

Thanks,

Paul

0 Haiwen Huang over 3 years ago in reply to Paul_Frost

TI__Intellectual 1740 points

Paul:

so the ADR6=0 is single SPI bus , ADR6=1 is SPI bus in parallel ？ Am I right ? Thanks .

0 Paul_Frost over 3 years ago in reply to Haiwen Huang

TI__Guru 53433 points

You could use either setting with a single device. If you use two devices, then one of them will need ADR6=0 and the other will need ADR6=1.

0 Haiwen Huang over 3 years ago in reply to Paul_Frost

TI__Intellectual 1740 points

Paul:

Got it .Thanks.