Datasheet

AD9741/AD9743/AD9745/AD9746/AD9747 Data Sheet
Rev. A | 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>