Datasheet

Ω
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 Submit Documentation Feedback 11
Product Folder Links: TUSB2046B TUSB2046BI