CDCUN1208LP

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SCAS928 – MAY 2012

INPUT PORTS (IN1, IN2)

Configuration of the Input Type (ITTP)

Table 6 describes how to set the input buffers to the appropriate switching levels using the ITTP pin. For proper

input termination, see Figure 43.

Table 6. CDCUN1208LP Pin Control of Input Type (ITTP)

ITTP (Pin 8)

ITTP SETTING

LOW

LVDS

HIGH

HCSL

OPEN

LVCMOS

Configuration of the IN2 Divider (INDIV)

Table 7 describes how to set the input divider using the DIVIDE pin. If the /8 setting is desired, then this feature

is accessed via the host configuration method only refer to section DEVICE CONTROL USING THE HOST

INTERFACE.

Table 7. CDCUN1208LP Pin Control of INDIV Divider

DIVIDE (Pin 1)

INDIV DIVIDER SETTING

LOW

/2

HIGH

/4

OPEN

/1

Copyright © 2012, Texas Instruments Incorporated

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