Datasheet

AD9251
Rev. A | Page 18 of 36
EQUIVALENT CIRCUITS
07938-039
A
V
DD
VIN±x
Figure 29. Equivalent Analog Input Circuit
07938-040
CLK+
CLK–
0.9V
15kΩ
5Ω
5Ω
15kΩ
Figure 30. Equivalent Clock Input Circuit
07938-041
30kΩ
30kΩ
S
DIO/DCS
350Ω
A
V
DD
DRVDD
Figure 31. Equivalent SDIO/DCS Input Circuit
07938-042
DR
V
DD
Figure 32. Equivalent Digital Output Circuit
07938-043
350Ω
DR
V
DD
30kΩ
SCLK/DFS, SYNC,
OEB, AND PDWN
Figure 33. Equivalent SCLK/DFS, SYNC, OEB, and PDWN Input Circuit
07938-044
RBIAS
A
ND VCM
375Ω
A
V
DD
Figure 34. Equivalent RBIAS, VCM Circuit