TLV2544CPWR datasheet(17/49 Pages) TI1

17 / 49 page

TLV2544, TLV2548

2.7V TO 5.5V, 12BIT, 200KSPS, 4/8CHANNEL, LOW POWER

SERIAL ANALOGTODIGITAL CONVERTERS WITH AUTOPOWERDOWN

SLAS198E − FEBRUARY 1999 − REVISED JUNE 2003

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

modes using the FIFO: modes 01, 10, 11 timing (continued)

CSTART

SDI

INT

SDO

From Channel 0

(DSP)

Configure

Conversion

Read FIFO

Top of FIFO

Read FIFO

From Channel 0

Conversion

Repeat

First FIFO Read

Second FIFO Read

Repeat

‡

†

‡‡

‡

From Channel 3

Conversion

From Channel 3

t(sample)

† Command = Configure write for mode 10 or 11, FIFO threshold = 1/2, sweep seq = 0−1−2−3.

‡ Command = Read FIFO

Figure 13. TLV2544/TLV2548 Mode 10/11 DSP Serial Interface (Conversions Triggered by CSTART)

CSTART

SDI

INT

SDO

From Channel 0

Configure

Conversion

Read FIFO

Top of FIFO

Conversion

Repeat

First FIFO Read

Second FIFO Read

Repeat

‡

†

‡‡

‡

From Channel 3

From Channel 0

From Channel 3

Read FIFO

§§

† Command = Configure write for mode 10 or 11, FIFO threshold = 1/2, sweep seq = 0−1−2−3.

‡ Command = Read FIFO

§ Use any channel select command to trigger SDI input.

Figure 14. TLV2544/TLV2548 Mode 10/11

µp Serial Interface (Conversions Triggered by CS)

TLV2544CPWR Datasheet(PDF) 17 Page - Texas Instruments

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