25

CDCDB2000

www.ti.com

SNAS787 – NOVEMBER 2019

Product Folder Links: CDCDB2000

Submit Documentation Feedback

Copyright © 2019, Texas Instruments Incorporated

Typical Application (continued)

8.2.2.1 Output Enable Control Method

If the SMBus and OE# pins should be used for controlling output states, the SBEN pin should be tied to a low

potential. This could be selected for hot swapping where pin control by a CPLD or other hot swap controller is

needed to enable/disable the reference clock to safeguard against backdriving a connected device.

8.2.2.2 SMBus Address

An SMBus address should be selected from the listed potential addresses in Table 1. The appropriate pullup or

pulldown resistor should be placed on the SADRx pins as indicated in the table. Ensure the SMBus address is

not already in use to avoid conflict.

8.2.3 Application Curve

The graph listed in Table 16 is used as both an application curve and a typical characteristics plot (see the

Typical Characteristics section).

Table 16. Table of Graphs

TITLE

FIGURE

CDCDB2000 Clock Out (CK0:19) Phase Noise

Figure 5