Dac Gain Register; Dac Offset With Attenuator Enabled (Low Power Mode) Register; Dac Offset With Attenuator Disabled (Low Power Mode) Register - Analog Devices ADuCM355 Hardware Reference Manual

UG-1262

DAC GAIN REGISTER

Address: 0x400C2260, Reset: 0x00000800, Name: DACGAIN
Protected by CALDATLOCK. Valid for all settings of HSDACCON Bit 12 and HSDACCON Bit 0.
Table 133. Bit Descriptions for DACGAIN
Bits Bit Name
[31:12] Reserved
[11:0] VALUE

DAC OFFSET WITH ATTENUATOR ENABLED (LOW POWER MODE) REGISTER

Address: 0x400C2264, Reset: 0x00000000, Name: DACOFFSETATTEN
The LSB adjustment is typically 4.9 μV for HSDACCON, Bit 12 = 1 and HSDACCON, Bit 0 = 1. The LSB adjustment is typically 24.7 μV
for HSDACCON, Bit 12 = 1 and HSDACCON, Bit 0 = 0.
Table 134. Bit Descriptions for DACOFFSETATTEN
Bits Bit Name Settings
[31:12] Reserved
[11:0] VALUE
0x7FF
0x001
0x000
0xFFF
0x800

DAC OFFSET WITH ATTENUATOR DISABLED (LOW POWER MODE) REGISTER

Address: 0x400C2268, Reset: 0x00000000, Name: DACOFFSET
The LSB adjustment is typically 197.7 μV for HSDACCON Bit 12 = 0 and HSDACCON Bit 0 = 0. The LSB adjustment is typically
39.5 μV for HSDACCON, Bit 12 = 0 and HSDACCON, Bit 0 = 1.
Table 135. Bit Descriptions for DACOFFSET
Bits Bit Name Settings
[31:12] Reserved
[11:0] VALUE
0x7FF
0x001
0x000
0xFFF
0x800
Settings Description
Reserved.
High Speed DAC Gain Correction Factor. Unsigned number.
0x000 Maximum negative gain adjustment occurs.
0x800 No gain adjustment.
0xFFF Maximum positive gain adjustment occurs.
Description
Reserved.
DAC Offset Correction Factor. Signed number represented in twos complement
format with a 0.5 LSB precision. Used when attenuator is enabled.
10
2 − 0.5. Maximum positive adjustment. Results in positive full scale/2 − 0.5 LSB
adjustment.
0.5. Results in 0.5 LSB adjustment.
0. No offset adjustment.
−0.5. Results in −0.5 LSB adjustment.
10
−2 . Maximum negative adjustment. Results in negative full scale/2 adjustment.
Description
Reserved.
DAC Offset Correction Factor. Signed number represented in twos complement
format with a 0.5 LSB precision. Used when attenuator is disabled.
10
2 − 0.5. Maximum positive adjustment. Results in positive full scale/2 − 0.5 LSB
adjustment.
0.5. Results in 0.5 LSB adjustment.
0. No offset adjustment.
−0.5. Results in −0.5 LSB adjustment.
10
−2 . Maximum negative adjustment. Results in negative full scale/2 adjustment.
ADuCM355
Rev. B | Page 114 of 312
Hardware Reference Manual
Reset
0x0
0x800
Access
R
R/W
Reset Access
0x0 R
0x0 R/W
Reset Access
0x0 R
0x0 R/W