AD9683 datasheet(19/45 Pages) AD

19 / 45 page

AD9683

Data Sheet

Rev. D | Page 18 of 44

EQUIVALENT CIRCUITS

VIN

AVDD

Figure 33. Equivalent Analog Input Circuit

0.9V

15k

Ω

15k

Ω

CLK+

CLK–

AVDD

Figure 34. Equivalent Clock lnput Circuit

BIAS

CONTROL

10k

Ω

RFCLK

INTERNAL

CLOCK DRIVER

0.5pF

AVDD

Figure 35. Equivalent RF Clock lnput Circuit

VCM

DRVDD

SERDOUT0±

3mA

RTERM

DRVDD

Figure 36. Digital CML Output Circuit

400

Ω

31k

Ω

DVDD

SDIO

Figure 37. Equivalent SDIO Circuit

400

Ω

30k

Ω

DVDD

PDWN,

SCLK,

Figure 38. Equivalent PDWN, SCLK, or CS Input Circuit

0.9V

17k

Ω

17k

Ω

SYNCINB+

SYNCINB–

DVDD

Figure 39. Equivalent SYNCINB± Input Circuit

0.9V

17k

Ω

17k

Ω

SYSREF+

SYSREF–

AVDD

Figure 40. Equivalent SYSREF± Input Circuit

RST

400

Ω

28k

Ω

DRVDD

Figure 41. Equivalent RST Input Circuit

400

VCM

Ω

AVDD

Figure 42. Equivalent VCM Circuit

AD9683 데이터시트(PDF) 19 Page - Analog Devices

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