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AD9951
14-Bit Direct Digital Synthesizer with 400MSPS DAC, 1.8V, TQFP48
Schematic Symbol
Pin Configuration (49 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | I/OUPDATE | bidirectional |
| 2 | DVDD | power_in |
| 3 | DGND | power_in |
| 4 | AVDD | power_in |
| 5 | AGND | power_in |
| 6 | AVDD | passive |
| 7 | AGND | passive |
| 8 | ~{OSC/REFCLK} | input |
| 9 | OSC/REFCLK | input |
| 10 | CRYSTALOUT | output |
| 11 | CLKMODESELECT | input |
| 12 | LOOP_FILTER | input |
| 13 | AVDD | passive |
| 14 | AGND | passive |
| 15 | AGND | passive |
| 16 | AVDD | passive |
| 17 | AGND | passive |
| 18 | AVDD | passive |
| 19 | AVDD | passive |
| 20 | ~{IOUT} | output |
| 21 | IOUT | output |
| 22 | AGND | passive |
| 23 | DACBP | input |
| 24 | DAC_R_{SET} | input |
| 25 | AVDD | passive |
| 26 | AGND | passive |
| 27 | AVDD | passive |
| 28 | AGND | passive |
| 29 | AVDD | passive |
| 30 | AGND | passive |
| 31 | AGND | passive |
| 32 | AGND | passive |
| 33 | DGND | passive |
| 34 | DVDD | passive |
| 35 | PWRDWNCTL | input |
| 36 | RESET | input |
| 37 | IOSYNC | output |
| 38 | SDO | output |
| 39 | ~{CS} | input |
| 40 | SCLK | input |
| 41 | SDIO | bidirectional |
| 42 | DGND | passive |
| 43 | DVDD_I/O | power_in |
| 44 | SYNC_IN | power_in |
| 45 | SYNC_CLK | output |
| 46 | OSK | output |
| 47 | DGND | passive |
| 48 | DGND | passive |
| 49 | AGND | passive |
Footprint
ConfirmedPackage_QFP/TQFP-48-1EP_7x7mm_P0.5mm_EP3.5x3.5mm
Pad Layout
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49
Pads (53)
| Number | Type |
|---|---|
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| 1 | smd |
| 2 | smd |
| 3 | smd |
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