Exar XR22414-EVB User Manual

Introduction

The XR22414 evaluation board is for the Exar USB 2.0 4-Port hub in both the 48 pin LQFP and 48 pin QFN packages. This
manual is intended to guide users to use various functions and configurations of the hub device. Either the 48 pin LQFP
package or 48 pin QFN package EVB can be ordered as shown in Table 1.
Device Ordering Part Number
XR22414CV48-F
XR22414CL48-F

Board Layout and Outline

Evaluation Board outline
Figure 1 shows the topography of the evaluation board. Either U1 or U2 will be installed depending upon the version of the
evaluation board.
© 2017 Exar Corporation
Table 1: Ordering Information
Evaluation Board Ordering Part Number
XR22414CV48EVB
XR22414CL48EVB
DS Port DS Port
1 2
LED
CAP CAP
P P
T LED T
C JUMP C JUMP
C C
U
M
M
S
B
U1
24
12
J8 LQFP
48
JUMP
1
48
J8: 1-2 Self Power
PWR
2-3 Bus Power
Figure 1: XR22414 PCB Outline
Evaluation Board User's Manual
Device Package
LQFP 48
QFN 48
DS Port DS Port
3 4
LED LED
CAP
CAP
P
P
T
LED T LED
JUMP
C JUMP C
C
C
M
M
U2
QFN
48
1 / 8
XR22414-EVB
Device Location
U1
U2
LED
LED
www.exar.com\XR22414
Rev 1A