AD9122 datasheet(21/56 Pages) AD

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AD9122

Rev. 0 | Page 21 of 56

Reg Name

Addr

(Hex)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

Compare I0 LSBs

0x68

Compare Value I0[7:0]

0xB6

Compare

I0 MSBs

0x69

Compare Value I0[15:8]

0x7A

Compare

Q0 LSBs

0x6A

Compare Value Q0[7:0]

0x45

Compare

Q0 MSBs

0x6B

Compare Value Q0[15:8]

0xEA

Compare I1 LSBs

0x6C

Compare Value I1[7:0]

0x16

Compare I1 MSBs

0x6D

Compare Value I1[15:8]

0x1A

Compare

Q1 LSBs

0x6E

Compare Value Q1[7:0]

0xC6

Compare

Q1 MSBs

0x6F

Compare Value Q1[15:8]

0xAA

SED I LSBs

0x70

Errors Detected I_BITS[7:0]

0x00

SED I MSBs

0x71

Errors Detected I_BITS[15:8]

0x00

SED Q LSBs

0x72

Errors Detected Q_BITS[7:0]

0x00

SED Q MSBs

0x73

Errors Detected Q_BITS[15:8]

0x00

Table 11. Device Configuration Register Descriptions

Reg

Name

Addr

(Hex)

Bit

Name

Description

Default

Comm

SDIO

SDIO Operation.

0 = SDIO operates as an input only.

1 = SDIO operates as bidirectional input/output.

LSB_FIRST

Serial port communication LSB or MSB first.

0 = MSB first.

1 = LSB first.

Reset

Reset is asserted when this bit transitions from 0 to 1.

Power

Power-down DAC I

1 = power down DAC I.

Control

Power-down DAC Q

1 = power down DAC Q.

Power-down data

receiver

1 = power down the input data receiver.

Power-down auxiliary

ADC

1 = power down auxiliary ADC for temperature sensor.

PLL lock status

1 = PLL is locked.

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