AD9135 datasheet(29/117 Pages) AD

29 / 117 page

Data Sheet

AD9135/AD9136

Rev. C | Page 29 of 117

STEP 6: OPTIONAL ERROR MONITORING

For JESD204B error monitoring, see the JESD204B Error

Monitoring section. For other error checks, see the Interrupt

Request Operation section.

STEP 7: OPTIONAL FEATURES

There are a number of optional features that can be enabled.

Table 22 provides links to the sections describing each feature.

These features can be enabled during the Digital Datapath

configuration step, or after the link is set up, because it is not

required to configure them for the link to be established, unlike

interpolation. Unless otherwise noted, these features are paged

as described in the DAC Paging section. Paging is particularly

important for DAC specific settings like digital gain and dc offset.

Table 22. Optional Features

Feature

Default

Description

Inverse Sinc

Improves pass-band flatness. See the

Inverse Sinc section.

Digital Gain

2.7 dB

Multiplies data by a factor. Can

compensate inverse sinc usage or

balance I/Q amplitude. See the Digital

Gain section.

DC Offset

Off

Used to cancel LO leakage. See the

DC Offset section.

Group Delay

Used to control overall latency. See

the Group Delay section.

Downstream

Protection

Off

Used to protect downstream

components. See the Downstream

Protection section.

Self Calibration

Off

Used to improve DAC linearity. Not

paged by the dual paging register.

See the Self Calibration section.

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