AD9951(Rev0) データシートの表示（PDF） - Analog Devices

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AD9951
(Rev.:Rev0)

400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer

Analog Devices 

PIN CONFIGURATION

AD9951

48 47 46 45 44 43 42 41 40 39 38 37

I/O UPDATE 1

DVDD 2

DGND 3

AVDD 4

AGND 5

AVDD 6

AGND 7

OSC/REFCLK 8

OSC/REFCLK 9

CRYSTAL OUT 10

CLKMODESELECT 11

LOOP_FILTER 12

AD9951

TOP VIEW

(Not to Scale)

36 RESET

35 PWRDWNCTL

34 DVDD

33 DGND

32 AGND

31 AGND

30 AGND

29 AVDD

28 AGND

27 AVDD

26 AGND

25 AVDD

13 14 15 16 17 18 19 20 21 22 23 24

Figure 3. 48-Lead TQFP/EP

Note that the exposed paddle on the bottom of the package forms an electrical connection for the DAC and must be attached to

analog ground. Note that Pin 43, DVDD_I/O, can be powered to 1.8 V or 3.3 V; however, the DVDD pins (Pin 2 and Pin 34) can only

be powered to 1.8 V.

Rev. 0 | Page 7 of 28

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