AD9689-2000EBZ datasheet(127/134 Pages) AD

127 / 134 page

Data Sheet

AD9689

Rev. A | Page 127 of 134

Addr.

Name

Bit(s) Bit Name

Setting

Description

Reset

Access

[2:0] SERDOUT6± voltage

swing adjust

Output swing level for SERDOUT6±.

0x1

R/W

000

1.0 × DRVDD1.

001

0.850 × DRVDD1.

010

0.750 × DRVDD1.

0x05C4 SERDOUT0

de-emphasis

select

Posttap enable

Posttap enable.

0x0

R/W

Disable.

Enable.

[6:4] Set posttap level for

SERDOUT0±

Set posttap level.

0x0

R/W

000

0 dB.

001

3 dB.

010

6 dB.

011

9 dB.

100

12 dB.

[3:0] Reserved

Reserved.

0x0

R/W

0x05C5 SERDOUT1

de-emphasis

select

Posttap enable

Posttap enable.

0x0

R/W

Disable.

Enable.

[6:4] Set posttap level for

SERDOUT1±

Set posttap level.

0x0

R/W

000

0 dB.

001

3 dB.

010

6 dB.

011

9 dB.

100

12 dB.

[3:0] Reserved

Reserved.

0x0

R/W

0x05C6 SERDOUT2

de-emphasis

select

Posttap enable

Posttap enable.

0x0

R/W

Disable.

Enable.

[6:4] Set posttap level for

SERDOUT2±

Set posttap level.

0x0

R/W

000

0 dB.

001

3 dB.

010

6 dB.

011

9 dB.

100

12 dB.

[3:0] Reserved

Reserved.

0x0

R/W

0x05C7 SERDOUT3

de-emphasis

select

Posttap enable

Posttap enable.

0x0

R/W

Disable.

Enable.

[6:4] Set posttap level for

SERDOUT3±

Set posttap level.

0x0

R/W

000

0 dB.

001

3 dB.

010

6 dB.

011

9 dB.

100

12 dB.

[3:0] Reserved

Reserved.

0x0

R/W

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