ON Semiconductor NLAS7222C User Manual

High-speed usb 2.0 480 mbps dpdt switch evaluation board

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NLAS7222CMUGEVB
NLAS7222C High-Speed
USB 2.0 (480 Mbps) DPDT
Switch Evaluation Board
User's Manual

Introduction

This evaluation board has been designed for a quick
evaluation of the NLAS7222C. The NLAS7222C is a
2−to−1 analog switch designed for USB 2.0 signals, as
shown in the block diagram in Figure 1 on the right. Among
its main characteristics, this evaluation board has been
constructed to easily interface with a customer's systems
and equipment through USB connectors. The evaluation
board can be seen in Figure 2 below.
This manual provides a bill of materials, board schematic,
and a layout overview of the evaluation board. The
appropriate setup to evaluate the device is also provided.
This document must be used with the NLAS7222C
datasheet available on www.onsemi.com. The datasheet
contains full technical details about the specifications and
operation of the device. When the intention is to evaluate the
device considering the specifications given in the datasheet,
it is important to take into account the additional circuitry
which may include changes in the characteristic impedance
matching.
© Semiconductor Components Industries, LLC, 2012
May, 2012 − Rev. 2
Figure 1. Block Diagram of NCN7222C
Figure 2. Evaluation Board
1
http://onsemi.com
EVAL BOARD USER'S MANUAL
Publication Order Number:
EVBUM2121/D

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Summary of Contents for ON Semiconductor NLAS7222C

  • Page 1 EVAL BOARD USER’S MANUAL Introduction This evaluation board has been designed for a quick evaluation of the NLAS7222C. The NLAS7222C is a 2−to−1 analog switch designed for USB 2.0 signals, as shown in the block diagram in Figure 1 on the right. Among its main characteristics, this evaluation board has been constructed to easily interface with a customer’s systems...
  • Page 2 HSD1+, HSD2+, 1 mA. HSD1− HSD2− 2. Connect the USB drive to the Common I/O USB port. S and OE/ Common logic selection pins HSD1 GND con- nection for Test point probes NLAS7222C HSD2 Figure 3. Evaluation Board Close−Up http://onsemi.com...
  • Page 3 NLAS7222CMUGEVB SCHEMATIC Figure 4. Evaluation Board Schematic http://onsemi.com...
  • Page 4 1903C J10, J11 Electronics J8, J9, Standoff Screw Keystone 4814K−ND J10, J11 Electronics PCB Shorting Link Harwin D3082−46 TP2, Test Point PC Multi 1.6mm Keystone 5010 TP3, Purpose hole Electronics TP4, TP5, TP6, TP7 NLAS7222C UQFN10 ON Semiconductor NLAS7222CMUTBG http://onsemi.com...
  • Page 5 NLAS7222CMUGEVB PCB LAYOUT The PCB and components are made of lead−free and bottom layer traces are shown in cyan. Ground pours are RoHS compliant materials. The layout is shown in Figure 5 present on the top and bottom layers for connectivity. PCB below.
  • Page 6 onsemi, , and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf.

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