LT6237 datasheet(34/52 Pages) LINER

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LTC2373-16

237316fa

For more information www.linear.com/LTC2373-16

applicaTions inForMaTion

new configuration may result in a different channel being

acquired. Additional valid input control words are written

into subsequent memory locations. The sequencer only

storesvalidinputcontrolwordsanddiscardscontrolwords

that are partially written or have C[7] = 0. If C[7] = 0 at any

point during sequencer programming, the LTC2373-16

closes the input transaction window until the completion

of the next conversion as shown in Figure 20b. Figure 21

shows a truncated programming transaction where the

first partial input control word is discarded and the second

complete input control word is successfully programmed.

The transaction window also closes after 16 successive

valid input control words have been written, since the

sequencer memory has been filled.

Figure 20a. Valid Control Word Successfully Programmed, C[7] = 1

CNV

BUSY

RDL

SCK

C[7]

C[6]

C[5]

C[4]

C[3]

C[2]

C[1]

C[0]

SDI

DON’T CARE

START OF NEW

TRANSACTION

WINDOW

Hi-Z

1ST VALID CONTROL WORD ENTERED

SEQUENCER MEMORY CLEARED AND UPDATED

NEW CONFIGURATION APPLIED

NEW ACQUISITION PERIOD BEGINS

SDO

237316 F20a

D15

D14

D13

D12

D11

D10

Figure 20b. Invalid Control Word Entered, C[7] = 0

CNV

BUSY

RDL

SCK

C[7]

SDI

DON’T CARE

START OF NEW

TRANSACTION

WINDOW

Hi-Z

TRANSACTION WINDOW CLOSED

SDO

237316 F20b

D15

D14

D13

D12

D11

D10

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