© 2018 Integrated Device Technology, Inc.

14

Rev O May 11, 2018

F1421 Datasheet

Control Pin Interface

If control signal integrity is a concern and clean signals cannot be guaranteed due to overshoot, undershoot, ringing, etc., the following circuit

at the input of each control pin is recommended. This applies to control pin 8 (STBY). Note the recommended resistor and capacitor values do

not necessarily match the EVKit BOM for the case of poor control signal integrity.

Figure 20. Control Pin Interface for Signal Integrity

STBY

EPAD

1

2

3

4

5

6

13

14

15

16

17

18

Control Circuit

2pF

4.7 kohm

Digital Pin Voltage and Resistance Values

Table 8 provides the open-circuit DC voltage referenced to ground and resistance value for the control pin listed.

Table 8.

Digital Pin Voltages and Resistance

Pin

Name

Open Circuit

DC Voltage

Internal Connection

8

STBY

0V

580kΩ resistor to ground