[SOLVED] Is 1/2 Vss = floating

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sharethl

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Hi,

An ADC datasheet said: if Pin4 is floating => DDR mode, if not floating => SDR mode,
The schematic I saw connected this pin to voltage divider to get 1/2 Voltage supply,
Is this ADC configured as DDR or SDR?
floating means pin is not connected, but what 1/2 Vss

Thanks.
 

Which ADC? Can you give a link to the datasheet?
 

Just read the text completely: "When this pin is floating or connected to 1/2 the supply voltage"...
 
Page 4 also describes how pin 4 works:
When this pin is floating or connected to 1/2 the supply voltage, DDR clocking is enabled.
Click to expand...

edit: Oops, crosspost with FvM
 
FvM said:
Just read the text completely: "When this pin is floating or connected to 1/2 the supply voltage"...
Click to expand...

Oh, Thanks. I did read that one, but for page 31, it didn't say that, then I forgot.


Have a great holiday!
 

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