Datasheet

AD9231
Rev. A | Page 17 of 36
EQUIVALENT CIRCUITS
A
V
DD
VIN±x
08121-039
Figure 29. Equivalent Analog Input Circuit
CLK+
CLK–
0.9V
15kΩ
5Ω
5Ω
15kΩ
08121-040
Figure 30. Equivalent Clock Input Circuit
30kΩ
30kΩ
S
DIO/DCS
350Ω
A
V
DD
DRVDD
08121-041
Figure 31. Equivalent SDIO/DCS Input Circuit
DR
V
DD
08121-042
Figure 32. Equivalent Digital Output Circuit
350Ω
DR
V
DD
30kΩ
SCLK/DFS, SYNC,
OEB, AND PDWN
08121-043
Figure 33. Equivalent SCLK/DFS, SYNC, OEB, and PDWN Input Circuit
RBIAS
A
ND VCM
375Ω
A
V
DD
08121-044
Figure 34. Equivalent RBIAS and VCM Circuit