AD9250
EQUIVALENT CIRCUITS
AVDD
VIN
Figure 27. Equivalent Analog Input Circuit
AVDD
AVDD
CLK+
0.9V
15kΩ
15kΩ
AVDD
CLK–
Figure 28. Equivalent Clock lnput Circuit
AVDD
0.5pF
RFCLK
10kΩ
BIAS
CONTROL
INTERNAL
CLOCK DRIVER
Figure 29. Equivalent RF Clock lnput Circuit
DRVDD
3mA
SERDOUTx+
3mA
DRVDD
RTERM
VCM
DRVDD
3mA
SERDOUTx–
3mA
Figure 30. Digital CML Output Circuit
Data Sheet
AVDD
SDIO
400Ω
31kΩ
Figure 31. Equivalent SDIO Circuit
AVDD
400Ω
SCLK/PWDN
31kΩ
Figure 32. Equivalent SCLK or PDWN Input Circuit
AVDD
AVDD
400Ω
CS
28kΩ
Figure 33. Equivalent CS Input Circuit
AVDD
AVDD
SYSREF+
0.9V
17kΩ
17kΩ
AVDD
SYSREF–
Figure 34. Equivalent SYSREF± Input Circuit
Rev. E | Page 18 of 45