AD9694 Просмотр технического описания (PDF) - Analog Devices

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производитель

AD9694

14-Bit, 500 MSPS JESD204B, Quad Analog-to-Digital Converter

Analog Devices 

Data Sheet

EQUIVALENT CIRCUITS

AVDD3

AVDD3

VIN+x

100Ω

3.5pF

10pF

AVDD3

100Ω

400Ω

AVDD3

VIN–x

3.5pF

Figure 44. Analog Inputs

AVDD3

VCM

BUFFER

AIN

CONTROL

(SPI)

CLK+

AVDD1

25Ω

CLK–

AVDD1

25Ω

16kΩ

16kΩ

VCM = 0.95V

SYSREF+

SYSREF–

Figure 45. Clock Inputs

AVDD1_SR

100Ω 10kΩ

1.9pF

100Ω 10kΩ

130kΩ

LEVEL

TRANSLATOR

130kΩ

AVDD1_SR

1.9pF

Figure 46. SYSREF± Inputs

AD9694

DATA+

DATA–

EMPHASIS/SWING

CONTROL (SPI)

DRVDD

SERDOUTABx+/SERDOUTCDx+

x = 0, 1

OUTPUT

DRIVER

DRGND

DRVDD

SERDOUTABx–/SERDOUTCDx–

x = 0, 1

DRGND

Figure 47. Digital Outputs

DRVDD

DRGND

2.5kΩ

SYNCINB+AB/

SYNCINB+CD

100Ω 10kΩ

1.9pF

DRGND

SYNCINB–AB/

SYNCINB–CD

100Ω 10kΩ

1.9pF

SYNCINB PIN

CONTROL (SPI)

CMOS

PATH

DRVDD

130kΩ DRGND

LEVEL

TRANSLATOR

130kΩ

DRVDD

DRGND

DRGND

Figure 48. SYNCINB±AB, SYNCINB±CD Inputs

SPIVDD

ESD

PROTECTED

SCLK

ESD

PROTECTED

56kΩ

DGND

SPIVDD

DGND

Figure 49. SCLK Input

Rev. 0 | Page 21 of 101

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