DDC232 datasheet(25/35 Pages) TI2

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IN T

N C D R 1

IN T

N C D R 2

Side A

Data

S ide B

Data

CO NV

D VA LID

DC LK

DO UT

DDC232

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SBAS331D – AUGUST 2004 – REVISED APRIL 2010

RETRIEVAL: NONCONTINUOUS MODE

until the second integration completes, leaving less

time available for retrieval. The time available is

Retrieving in Noncontinuous mode is slightly different

tNCDR2 – (tINT – tNCDR1). Data from the second

compared

with

the

Continuous

mode.

integration must be retrieved before the next round of

illustrated in Figure 23, DVALID goes low in time

integration begins. This time is highly dependent on

tNCDR1 after the first integration completes. If tINT is

the pattern used to generate CONV. As with the

shorter than this time, all of tNCDR2 is available to

continuous mode, data retrieval must halt before and

retrieve data before the other side data are ready. For

after CONV toggles (tSDCV) and be completed before

tINT > tNCDR1, the first integration data are ready

new data are ready (tHDDODV).

before

the

second

integration

completes.

Data

retrieval

must

delayed

Figure 23. Readback in Noncontinuous Mode

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