AD9776 Datasheet, PDF (27/56 Pages) Analog Devices – Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters

AD9776/AD9778/AD9779
SPI REGISTER MAP
Table 11.
Register
Name
Comm
Address
0x00 00
Digital
Control
0x01 01
0x02 02
Sync
Control
0x03 03
Bit 7
SDIO
Bidirectional
Bit 6
LSB/MSB First
Filter Interpolation Factor<1:0>
Data Format Dual/Interleaved
Data Bus Mode
Data Clock Delay Mode<1:0>
Bit 5
Bit 4
Bit 3
Bit 2
Software
Reset
Power-
Down
Mode
Auto
Power-
Down
Enable
Filter Modulation Mode<3:0>
Bit 1
PLL Lock
Indicator
(Read
Only)
Real Mode
Data
Clock
Delay
Enable
Data Clock Divide
Ratio<1:0>
Inverse
Sinc
Enable
DATACLK
Invert
TxEnable
Invert
Reserved
Bit 0
Zero
Stuffing
Enable
Q First
0x04 04
0x05 05
0x06 06
0x07 07
PLL
Control
0x08 08
Sync
Receiver
Enable
Data Clock Delay<3:0>
Sync Out Delay<3:0>
Sync Input Delay<3:0>
Sync Driver
Enable
Sync
Triggering
Edge
PLL Band Select<5:0>
Output Sync Pulse Divide<2:0>
Sync Out
Delay<4>
Input Sync Pulse Frequency Ratio<2:0> Sync Input
Delay<4>
Input Sync Pulse Timing Error Tolerance<3:0>
DAC Clock Offset<4:0>
PLL VCO AGC
Gain<1:0>
0x09 09
Misc
Control
0x0A 10
PLL Enable PLL VCO Divider Ratio<1:0>
PLL Control Voltage Range<2:0> (Read Only)
PLL Loop
Divide
Ratio<1:0>
PLL Bias Setting<2:0>
PLL Loop Bandwidth Adjustment<4:0>
I DAC
Control
Register
0x0B 11
0x0C 12
Aux DAC1 0x0D 13
Control _{0x0E 14}
Register
Q DAC
Control
Register
0x0F 15
0x10 16
I DAC Sleep I DAC Power
Down
Auxiliary
DAC1 Sign
Auxiliary DAC1
Current Direction
Q DAC Sleep
Q DAC Power-
Down
I DAC Gain Adjustment<7:0>
Auxiliary DAC1 Data<7:0>
Auxiliary
DAC1
Power-
Down
Q DAC Gain Adjustment<7:0>
I DAC Gain
Adjustment<9:8>
Auxiliary DAC1
Data<9:8>
Q DAC Gain
Adjustment<9:8>
Aux DAC2 0x11 17
Control _{0x12 18}
Register
Auxiliary
DAC2 Sign
Auxiliary DAC2
Current Direction
Auxiliary DAC2 Data<7:0>
Auxiliary
DAC2
Power-
Down
Auxiliary DAC2
Data<9:8>
Interrupt
Register
0x13
to
0x18
0x19
19 to 24
25
0x1A
to
0x1F
26 to 31
Sync Delay IRQ
Reserved
Reserved
Sync
Delay
IRQ
Enable
Internal
Sync
Loopback
Def.
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0xCF
0x37
0x38
0xF9
0x01
0x00
0x00
0xF9
0x01
0x00
0x00
0x00
Rev. A | Page 27 of 56