TLC3544 Datasheet, PDF (25/40 Pages) Texas Instruments – 5-V ANALOG, 3-/5-V DIGITAL, 14-BIT, 200-KSPS, 4-/8-CHANNELS SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS

TLC3544, TLC3548
5-V ANALOG, 3-/5-V DIGITAL, 14-BIT, 200-KSPS, 4-/8-CHANNELS SERIAL
ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS
SLAS266C – OCTOBER 2000 – REVISED MAY 2003
conversion operation
48 SCLKs for Long Sampling
16 SCLKs for Short Sampling
12 345
67
12 13 14 15 16
1
CS
FS in High
Select Channel
ÌÌÌÌÌÌ ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌ _SDI
ID15 ID14 ID13 1D12
ID15
INT
t_(SAMPLE)
t(conv)
EOC
OR
SDO
Previous Conversion Result
OD15 OD14 OD13 OD12 OD11 OD10 OD9
ÌÌÌ ^{OD4 OD3 OD2}
The dotted line means signal may or may not exist.
OD[15:2] is the result of previous conversion.
ÌÌÌÌÌÌDon’t Care
Figure 12. Mode 00, CS Initiates Operation
Hi-Z
OD15
SDO goes to Hi-Z After 16th SCLK
48 SCLKs for Long Sampling
16 SCLKs for Short Sampling
12 345 67
12 13 14 15 16
1
SCLK
CS
FS
Select Channel
ÌÌÌÌÌÌ ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌ _SDI
ID15 1D14 ID13 1D12
ID15
INT
OR
t_(SAMPLE)
t_(conv)
EOC
SDO
ÌÌÌÌ ^{Previous Conversion Result}
SDO Goes Through Hi-Z After 16 SCLK
OD15 OD14 OD13 OD12 OD11 OD10 OD9
OD4 OD3 OD2
Hi-Z
OD15
The dotted line means signal may or may not exist.
OD[15:2] is the result of previous conversion.
ÌÌ Don’t Care
ÌÌ _{Figure 13. Mode 00, FS Initiates Operation}
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