Datasheet

AD9776/AD9778/AD9779
Rev. A | Page 30 of 56
Address
Register Name Reg. No. Bits Description Function Default
Q DAC Control Register 0F 7:0 Q DAC gain adjustment
(7:0) LSB slice of 10-bit gain setting word for
Q DAC
11111001
10 7 Q DAC sleep 0: Q DAC on 0
1: Q DAC off
10 6 Q DAC power-down 0: Q DAC on 0
1: Q DAC off
10 1:0 Q DAC gain adjustment
(9:8) MSB slice of 10-bit gain setting word
for Q DAC
11 7:0 Aux DAC2 gain adjustment
(7:0) LSB slice of 10-bit gain setting word for
Aux DAC2
00000000
12 7 Aux DAC2 sign 0: positive
1: negative
12 6 Aux DAC2 current direction 0: source 0
1: sink
12 5 Aux DAC2 power-down 0: Aux DAC2 on 0
1: Aux DAC2 off
Aux DAC2 Control
Register
12 1:0 Aux DAC2 gain adjustment
(9:8) MSB slice of 10-bit gain setting word
for Aux DAC2
00
Interrupt Register 19 7 0
19 6 Sync delay IRQ Readback, must write 0 to clear 0
19 5 0
19 3 0
19 2 Sync delay IRQ enable 0
19 1 0
19 0 Internal sync loopback 0