DDC232C datasheet(24/35 Pages) TI2

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INT

* tSDCV ) tSDCV ) tHDDODV

(20

32)t

DCLK

…

DCLK

DVALID

CONV

DOUT

Side B

Data

Side A

Data

INT

SDCV

HDDODV

INT

DDC232

SBAS331D – AUGUST 2004 – REVISED APRIL 2010

www.ti.com

RETRIEVAL BEFORE AND AFTER CONV

TOGGLES (CONTINUOUS MODE)

(4)

For the absolute maximum time for data retrieval,

NOTE: (16 × 32)tDCLK is used for Format = 0.

data can be retrieved before and after CONV toggles.

Nearly all of tINT is available for data retrieval.

For tINT = 400ms and DCLK = 10MHz, the maximum

Figure 22 illustrates how this is done by combining

number

DDC232s

five

(or

seven

for

the two previous methods. Pause the retrieval during

Format = 0).

CONV toggling to prevent digital noise, as discussed

previously, and finish before the next data are ready.

The maximum number of DDC232s that can be

daisy-chained together with Format = 1 is:

Figure 22. Readback Before and After CONV Toggles

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