Datasheet

TLC1514, TLC1518
5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
SLAS252 – DECEMBER 1999
15
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
modes using the FIFO: modes 01, 10, 11 timing (continued)
CS
CSTART
SDI
INT
SDO
Hi-Z
From Channel 2
t
convert
FS
§
‡‡‡ §
Hi-Z
t
sample
t
sample
t
sample
t
convert
Configure Select
Conversion #1
Select
Conversion #4
Read FIFO #1 #2 #3 #4 Next #1
Top of FIFO
From Channel 2
t
convert
Command = Configure write for mode 01, FIFO threshold = 1/2
Command = Read FIFO, 1st FIFO read
§
Command = Select ch2.
Figure 10. TLC1514/TLC1518 Mode 01 DSP Serial Interface (conversions triggered by FS)
CS
CSTART
SDI
INT
SDO
Hi-Z
From Channel 2
FS
(DSP)
From Channel 2
Configure Select
Conversion #1
Select
Conversion #4
Read FIFO
First FIFO Read
‡‡ §
#1 #2 #3 #4 Next #1
t
sample
(1)
t
convert
(1)
§
t
sample
(2)
t
sample
(3)
t
sample
(4)
t
convert
(2)
t
convert
(3)
t
convert
(4)
Hi-Z
t
Sample
(i) > = MIN(t
Sample
)
< 1.5 µs (From CS if FS = 1)
Command = Configure write for mode 01, FIFO threshold = 1/2
Command = Read FIFO, 1st FIFO read
§
Command = Select ch2.
Figure 11. TLC1514/TLC1518 Mode 01 µp/DSP Serial Interface (conversions triggered by CSTART)