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TLV2544_14 Datasheet, PDF (14/48 Pages) Texas Instruments – Maximum Throughput 200-KSPS Built-In Reference, Conversion Clock and 8× FIFO | |||
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TLV2544, TLV2548
2.7ÄV TO 5.5ÄV, 12ÄBIT, 200ÄKSPS, 4Ä/8ÄCHANNEL, LOWÄPOWER
SERIAL ANALOGÄTOÄDIGITAL CONVERTERS WITH AUTOPOWERÄDOWN
SLAS198E â FEBRUARY 1999 â REVISED JUNE 2003
conversion cycles
DSP/normal sampling
SCLK
CS
1 234567
12
tc (30 or 42 SCLKs)
16 â Short Sampling
28 â Long Sampling
30 â Short Sampling
42 â Long Sampling
(If CONV
CLK = SCLK0
FS
ÃÃÃÃÃÃ SDI
ID15
ID14
ID13
ID12ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃID15
INT
t(sample) (12 or 24 SCLKs)
EOC
SDO
MSB
MSB-1 MSB-2 MSB-3 MSB-4 MSB-5 MSB-6
(SDOZ on SCLK16L Regardless
of Sampling Time)
ÃÃÃÃÃÃÃÃÃÃÃÃ LSB
t(conv)
MSB
Figure 7. Mode 00 Single Shot/Normal Sampling (FS Signal Used)
SCLK
CS
1 23 4567
12 13
tc (30 or 42 SCLKs)
16 â Short Sampling
28 â Long Sampling
30 â Short Sampling (If CONV
42 â Long Sampling
CLK = SCLK0
1
FS
ÃÃÃÃÃÃÃÃ SDI
ID15
ID14
ID13
ID12 ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃID15
INT
t(sample) (12 or 24 SCLKs)
EOC
(SDOZ on SCLK16L Regardless
SDO
MSB MSB-1 MSB-2 MSB-3 MSB-4 MSB-5 MSB-6
of Sampling Time)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃ LSB
t(conv)
MSB
Figure 8. Mode 00 Single Shot/Normal Sampling (FS = 1, FS Signal not Used)
14
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