ADRF6821 datasheet(44/61 Pages) AD

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ADRF6821

Data Sheet

Rev. A | Page 44 of 61

Address: 0x0050, Reset: 0x00, Name: DC_CTRL

DC DAC 1.8V Reference Enable (1:off

0:on), Active Low .

DC Co m p e nsatio n Q Channe l Enab le

(0 : o ff 1: o n)

DC Co m p e nsatio n I Channe l Enab le (0 :

o ff 1: o n)

[ 7 :3 ] RES ERV ED

[ 0 ] EN B_D CCO M P _1 P 8 _GEN ( R/W )

[ 2 ] EN _D C_D AC_Q ( R/W )

[ 1 ] EN _D C_D AC_I ( R/W )

Table 36. Bit Descriptions for DC_CTRL

Bits

Bit Name

Settings

Description

Reset

Access

[7:3]

RESERVED

Reserved.

0x0

EN_DC_DAC_Q

DC Compensation Q Channel Enable (0: off and 1: on). Enables the dc

compensation DAC.

0x0

R/W

EN_DC_DAC_I

DC Compensation I Channel Enable (0: off and 1: on). Enables the dc

compensation DAC.

0x0

R/W

ENB_DCCOMP_1P8_GEN

DC DAC 1.8 V Reference Enable (1: off and 0: on). Active Low.

0x0

R/W

Address: 0x0051, Reset: 0x00, Name: DC_COMP_I_CHAN_RF0

DC Com pens ation I Channel

[7:0] CODE_DC_IDAC_RF0 (R/W)

Table 37. Bit Descriptions for DC_COMP_I_CHAN_RF0

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

CODE_DC_IDAC_RF0

DC Compensation I Channel. Controls the dc correction applied to the IF

path. LSB is approximately ½ mV referred to the output. Value is signed

magnitude notation. 0xFF is the most negative, and 0x7F is the most positive.

0x0

R/W

Address: 0x0052, Reset: 0x00, Name: DC_COMP_Q_CHAN_RF0

DC Com pens ation Q Channel

[7:0] CODE_DC_QDAC_RF0 (R/W)

Table 38. Bit Descriptions for DC_COMP_Q_CHAN_RF0

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

CODE_DC_QDAC_RF0

DC Compensation Q Channel. Controls the dc correction applied to the IF

path. LSB is approximately ½ mV referred to the output. Value is signed

magnitude notation. 0xFF is the most negative, and 0x7F is the most positive.

0x0

R/W

Address: 0x0053, Reset: 0x00, Name: DC_COMP_I_CHAN_RF1

DC Com pens ation I Channel

[7:0] CODE_DC_IDAC_RF1 (R/W)

Table 39. Bit Descriptions for DC_COMP_I_CHAN_RF1

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

CODE_DC_IDAC_RF1

DC Compensation I Channel. Controls the dc correction applied to the IF

path. LSB is approximately ½ mV referred to the output. Value is signed

magnitude notation. 0xFF is the most negative, and 0x7F is the most positive.

0x0

R/W

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