DAC1280: how to send bits stream for dac1280

Dear sir

i can't access the link in your reply

i have another question,if i want to get the smallest current or maximum current 

what can i do? in the datasheet it  only tell us just  calculate the 1 and 0 density

but we don't know how long dac will stop calculate the 1 and 0 density (update rate)

,we need to send 2^24 data??

thanks!!

Hi TAI,

If you'll refer to the following diagram, there are multiple flip-flops in series which control a total of 19 current taps. If you clock in alternating "1"s and "0"s on TDATA, you'll get a differential output current of nearly 0 mA. Therefore, the minimum output current will require clocking in 0101010...

For the maximum output current, you only need to clock in a signal of 75% "1"s density, so for example 01110111...

For anything in between, the flip-flops will perform a moving average on the bitstream to calculate an average output current.

Dear sir

it's more clearly!! but could you please give me the other  current  pattern

for example  6%, 43% .the other question is if  i want  to achieve 24bits dac 

accuracy , more 1 and 0  will be sent to the dac moving average  D flip flop??

and  i need to repeat send the pattern??

many thanks!!

TAI