AD9689-2000EBZ datasheet(128/134 Pages) AD

128 / 134 page

AD9689

Data Sheet

Rev. A | Page 128 of 134

Addr.

Name

Bit(s) Bit Name

Setting

Description

Reset

Access

0x05C8 SERDOUT4

de-emphasis

select

Posttap enable

Posttap enable.

0x0

R/W

Disable.

Enable.

[6:4] Set posttap level for

SERDOUT4±

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

0x05C9 SERDOUT5

preemphasis

select

Posttap enable

Posttap enable.

0x0

R/W

Disable.

Enable.

[6:4] Set posttap level for

SERDOUT5±

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

0x05CA SERDOUT6

preemphasis

select

Posttap enable

Posttap enable.

0x0

R/W

Disable.

Enable.

[6:4] Set posttap level for

SERDOUT6±

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

0x05CB SERDOUT7

preemphasis

select

Posttap enable

Posttap enable.

0x0

R/W

Disable.

Enable.

[6:4] Set posttap level for

SERDOUT7±

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

0x1222 JESD204B PLL

calibration

[7:0] JESD204B PLL

calibration reset

See Table 32.

0x00

R/W

0x00

JESD204B PLL normal operation.

0x04

Reset JESD204B PLL calibration.

0x1228 JESD204B PLL

startup

control

[7:0] JESD204B PLL

calibration startup

circuit reset

See Table 32.

0x0F

R/W

0x0F

JESD204B start-up circuit in normal operation.

0x4F

Reset JESD204B startup circuit.

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