TLV320AIC10 DOUT Data value

Kummi

Other Parts Discussed in Thread: TLV320AIC10, ADS8342

Hi,

Regarding the TLV320AIC10 DOUT, if we want to send the
ADC output as a 16 bit data, what could the be output value
for the 16 bit data at FFFF.
Is it 1 or 65535?

Best Regards
Kummi

over 9 years ago

0 Diego Melendez over 9 years ago

TI__Guru 57800 points

Hi Kummi,

The format of the serial data interface is two' s complement signed integer, so FFFF will correspond to -1.

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

0 Kummi over 9 years ago in reply to Diego Melendez

Mastermind 6220 points

Hi Diego,

Thank you so much for the quick details.
Could you please let me ask one more question about this topic.

The TLV320AIC10 datasheet "4.3.4 ADC Channel Characteristics" mentions
ADC's "VI(PP) Peak-to-peak input voltage(differential)" is 4V.
Does it mean the output data is "1" for Vi= 4V and
"-1" for Vi=-4V? or else "-1" for Vi=0V?

Similarly regarding the DAC "4.3.7 DAC Channel Characteristics"
the "Analog output voltage (Vo) " is -4(min) to +4'Max).
Will the output be 4V when the data is "1" and
-4V output when the data is "-1"?

Best Regards
Kummi

0 Kummi over 9 years ago in reply to Kummi

Mastermind 6220 points

Hi Diego,

Please let me know if there is any comment on the above question.

Regarding the ADC output data can I assume it be something like the
one below (from ADS8342 datasheet).

Best Regards
kummi