AD9783BCPZ datasheet(22/36 Pages) AD

22 / 36 page

AD9780/AD9781/AD9783

Rev. A | Page 22 of 36

Address

Bit

Name

Function

AUXDAC1

0x0D

7:0

AUXDAC1[9:0]

AUXDAC1 output current adjustment word.

0x0E

1:0

0x3FF, sets AUXDAC1 output current to 2.0 mA.

0x200, sets AUXDAC1 output current to 1.0 mA.

0x000, sets AUXDAC1 output current to 0.0 mA.

0x0E

AUX1SGN

0, AUX1P output pin is active.

1, AUX1N output pin is active.

AUX1DIR

0, configures AUXDAC1 output to source current.

1, configures AUXDAC1 output to sink current.

DAC2 FSC

0x0F

7:0

DAC2FSC[9:0]

DAC2 full-scale 10-bit adjustment word.

0x10

1:0

0x3FF, sets DAC full-scale output current to the maximum value of 31.66 mA.

0x200, sets DAC full-scale output current to the nominal value of 20.0 mA.

0x000, sets DAC full-scale output current to the minimum value of 8.66 mA.

AUXDAC2

0x11

7:0

AUXDAC2[9:0]

AUXDAC2 output current adjustment word.

0x12

1:0

0x3FF, sets AUXDAC2 output current to 2.0 mA.

0x200, sets AUXDAC2 output current to 1.0 mA.

0x000, sets AUXDAC2 output current to 0.0 mA.

0x12

AUX2SGN

0, AUX2P output pin is active.

1, AUX2N output pin is active.

AUX2DIR

0, configures AUXDAC2 output to source current.

1, configures AUXDAC2 output to sink current.

BIST Control

0x1A

BISTEN

1, enables and starts built-in self-test.

BISTRD

1, transfers BIST result registers to SPI for readback.

BISTCLR

1, reset BIST logic and clear BIST result registers.

BIST Result 1

0x1B

7:0

BISTRES1[15:0]

16-bit result generated by BIST 1.

0x1C

7:0

BIST Result 2

0x1D

7:0

BISTRES2[15:0]

16-bit result generated by BIST 2.

0x1E

7:0

Hardware Version

0x1F

7:4

VERSION[3:0]

Read only register; indicates the version of the chip.

3:0

DEVICE[3:0]

Read only register; indicates the device type.

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