AD9741/AD9743/AD9745/AD9746/AD9747

Rev. 0 | Page 20 of 28

SPI REGISTER MAP

Reading any register returns previously written values for all defined register bits, unless otherwise noted. Change serial port configu-

ration or execute software reset in single byte instruction only to avoid unexpected device behavior.

Table 14.

Register Name

Address

Default

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

SPI Control

0x00

0x00

SDIODIR

LSBFIRST

SWRESET

Data Control

0x02

0x00

DATTYPE

ONEPORT

INVDCO

Power Down

0x03

0x00

PD_DCO

PD_AUX2

PD_AUX1

PD_BIAS

PC_CLK

PD_DAC2

PD_DAC1

DAC Mode Select

0x0A

0x00

DAC1MOD<1:0>

DAC2MOD<1:0>

DAC1 Gain LSB

0x0B

0xF9

DAC1FSC<7:0>

DAC1 Gain MSB

0x0C

0x01

DAC1FSC<9:8>

AUX DAC1 LSB

0x0D

0x00

AUXDAC1<7:0>

AUX DAC1 MSB

0x0E

0x00

AUX1PIN

AUX1DIR

AUXDAC1<9:8>

DAC2 Gain LSB

0x0F

0xF9

DAC2FSC<7:0>

DAC2 Gain MSB

0x10

0x01

DAC2FSC<9:8>

AUX DAC2 LSB

0x11

0x00

AUXDAC2<7:0>

AUX DAC2 MSB

0x12

0x00

AUX2PIN

AUX2DIR

AUXDAC2<9:8>