![](http://datasheet.mmic.net.cn/Analog-Devices-Inc/AD9649BCPZRL7-80_datasheet_100682/AD9649BCPZRL7-80_16.png)
AD9649
Rev. 0 | Page 16 of 32
EQUIVALENT CIRCUITS
AVDD
VIN±
08
539
-03
9
Figure 27. Equivalent Analog Input Circuit
7.5k
VREF
375
AVDD
08
53
9-
0
47
Figure 28. Equivalent VREF Circuit
SENSE
375
AVDD
08
53
9-
04
6
Figure 29. Equivalent SENSE Circuit
CLK+
CLK–
0.9V
15k
5
15k
08
53
9-
0
40
Figure 30. Equivalent Clock Input Circuit
DRVDD
085
39
-04
2
Figure 31. Equivalent D0 to D13 and OR Digital Output Circuit
350
DRVDD
30k
SCLK/DFS,
MODE,
SDIO/PDWN
08
53
9-
0
43
Figure 32. Equivalent SCLK/DFS, MODE and SDIO/PDWN Input Circuit
30k
CSB
350
AVDD
DRVDD
08
53
9-
04
5
Figure 33. Equivalent CSB Input Circuit
RBIAS
AND VCM
375
AVDD
08
53
9-
04
4
Figure 34. Equivalent RBIAS, VCM Circuit