30

29

31

27

XTAL1

XTAL2

TSTMODE

TSTPLL/48MCLK

TUSB2046B USB HUB

Open

48-MHz Oscillator

or on Board Clock Source

3.3 V

TUSB2046B

TUSB2046BI

www.ti.com

SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013

Figure 8. 48-MHz Input Clock Configuration

Figure 9 is a block diagram example of how to connect the external EEPROM if a custom product ID and vendor

ID are desired. Figure 10 shows the EEPROM read operation timing diagram. Figure 11, Figure 12, and

Figure 13 illustrate how to connect the TUSB2046B device for different power source and port power-

management combinations.

Figure 9. Typical Application of the TUSB2046B USB Hub

Copyright © 2000–2013, Texas Instruments Incorporated

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Product Folder Links: TUSB2046B TUSB2046BI