AD9142BCPZ datasheet(55/65 Pages) AD

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Data Sheet

AD9142

Rev. 0 | Page 55 of 64

NCO_PHASE_OFFSET1 REGISTER

Address: 0x36, Reset: 0x00, Name: NCO_PHASE_OFFSET1

Table 66. Bit Descriptions for NCO_PHASE_OFFSET1

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

NCO_PHASE_OFFSET_MSB

This register sets the initial phase of the complex carrier signal upon reset.

The phase offset spans from 0 degrees to 360 degrees. Each bit represents

an offset of 0.0055 degrees. This value is in twos complement format.

0x00

IQ_PHASE_ADJ0 REGISTER

Address: 0x37, Reset: 0x00, Name: IQ_PHASE_ADJ0

Table 67. Bit Descriptions for IQ_PHASE_ADJ0

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

IQ_PHASE_ADJ_LSB

See Register 0x38.

0x00

IQ_PHASE_ADJ1 REGISTER

Address: 0x38, Reset: 0x000, Name: IQ_PHASE_ADJ1

Table 68. Bit Descriptions for IQ_PHASE_ADJ1

Bits

Bit Name

Settings

Description

Reset

Access

[4:0]

IQ_PHASE_ADJ_MSB

IQ phase adjust, Bits[12:0], is used to insert a phase offset between the

I and Q datapaths. It provides an adjustment range of ±14 degrees with

a step of 0.0035 degrees. This value is in twos complement. See the

Quadrature Phase Adjustment section for more information.

0x0

IDAC_DC_OFFSET0 REGISTER

Address: 0x3B, Reset: 0x00, Name: IDAC_DC_OFFSET0

Table 69. Bit Descriptions for IDAC_DC_OFFSET0

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

IDAC_DC_OFFSET_LSB

See Register 0x3C.

0x00

IDAC_DC_OFFSET1 REGISTER

Address: 0x3C, Reset: 0x00, Name: IDAC_DC_OFFSET1

Table 70. Bit Descriptions for IDAC_DC_OFFSET1

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

IDAC_DC_OFFSET_MSB

IDAC DC offset, Bits[15:0], is a dc value that is added directly to the

sample values written to the IDAC.

0x00

QDAC_DC_OFFSET0 REGISTER

Address: 0x3D, Reset: 0x00, Name: QDAC_DC_OFFSET0

Table 71. Bit Descriptions for QDAC_DC_OFFSET0

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

QDAC_DC_OFFSET_LSB

See Register 0x3E.

0x00

AD9142BCPZ Datasheet(PDF) 55 Page - Analog Devices

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