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APPLICATION INFORMATION (continued)
FS
SDO
D17
1 2 3 17 18
SCLK
D15D16 D1D2 D0
SAMPLE CONVERT
BUSY
CONVERT
30ns
DEVICE STATE
Frequency = 600 kHz
485 ns
50 ns
15 ns 15 ns
25 ns
12.5 ns
MSB
n
CS = 0
CONVST
LSB
n−1
LSB
n
D0
ADS8380
SLAS387A – NOVEMBER 2004 – REVISED DECEMBER 2004
It is also possible to use the frame sync signal, FS. The following timing diagram shows how to achieve a
600-KSPS throughput using a modified serial interface with FS active.
Figure 57. Example Stimulus in Serial Interface With FS Active, Back-To-Back Conversion that Achieves
600 KSPS
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