AD9778 Analog Devices, AD9778 Datasheet - Page 30

• Manufacturer Part Number: AD9778
• Description: Dual 14-Bit, 1 GSPS, Digital-to-Analog Converter
• Manufacturer: Analog Devices

Specifications of AD9778

• Resolution (bits): 14bit
• Dac Update Rate: 1GSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Par

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