TLC4545ID Datasheet, PDF (15/26 Pages) Texas Instruments – 5-V, LOW POWER, 16-BIT, 200-KSPS SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO-POWER DOWN

TLC4541, TLC4545
PRINCIPLES OF OPERATION
SLAS293 − DECEMBER 2001
SCLK
CS
SDO
tcyc(SCLK)
1
2
tsu1
tcyc
ts
5
14
15
16
17,
24
tw1
tw2
th2
tconv
t(PWRDWN)
th1
td1
tw3
td2
td3
MSB
LSB+2
LSB+1
LSB
Figure 18. Critical Timing: Control Via CS Input (FS = 1 for TLC4541)
1
MSB
SCLK
CS
th4
tsu4
1
2
tsu5
ts
5
14
15
16
17,
24
th2
tconv
1
t(PWRDWN)
tw4
FS
td2
tsu3
SDO
ÎÎ _MSB
ÎÎtd4
LSB+2
LSB+1
td3
LSB
t(PWRDWN)
ÎÎÎÎÎÎ_MSB
Figure 19. Critical Timing: Control Via CS and FS Inputs (TLC4541 Only)
SCLK
CS
SDO
1
th6
2
8
9
tsu6
tcyc(reset)
1
2
Normal Cycle Begins
Reset Cycle
MSB
MSB MSB−1
(Output = FF00h)
Figure 20. Critical Timing: Reset/Initialization Cycle (FS =1 for TLC4541)
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