©
Semiconductor Components Industries, LLC, 2012
April, 2012
−
Rev. 3
1
Publication Order Number:
EVBUM2103/D
NCN9252MUGEVB
High-Speed USB 2.0
(480 Mbps) DP3T Switch for
USB/UART/Data
Multiplexing Evaluation
Board User's Manual
OVERVIEW
The NCN9252 is a DP3T switch for combined UART and
USB 2.0 high
−
speed data applications. It allows portable
systems to use a single external port to transmit and receive
signals to and from three separate locations within the
portable system. It is comprised of two switches, each with
a single common I/O that alternates between three terminals.
They are operated together to allow three data sources, such
as a USB or UART transceiver, to pass differential data
through a shared USB connector port.
The NCN9252 features low RON
−
4
W
(max) at 4.2 V
V
CC
, 5
W
(typ) at a 3.3 V V
CC
. It also features low CON,
< 30 pF (max) across the supply voltage range. This
performance makes it ideal for both USB full
−
speed and
high
*
speed applications that require both low RON and
CON for effective signal transmission. The NCN9252 is
capable of accepting control input signals down to 1.4 V,
over a range of V
CC
supply voltages with minimal leakage
current. The NCN9252 is offered in a Pb
−
Free, 12 pin,
1.7 x 2.0 x 0.5 mm, UQFN package.
Figure 1. Board Photo
http://onsemi.com
EVAL BOARD USER’S MANUAL
