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TS3DV421DGVRG4 データシート(PDF) 2 Page - Texas Instruments

部品番号 TS3DV421DGVRG4
部品情報  4-CHANNEL DIFFERENTIAL 8:16 MULTIPLEXER SWITCH FOR DVI/HDMI APPLICATIONS
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

TS3DV421DGVRG4 データシート(HTML) 2 Page - Texas Instruments

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DDC/CEC/+5V
DDC/CEC/+5V
ATMDS0+
ATMDS0–
ATMDS1+
ATMDS1–
ATMDS2+
ATMDS2–
ATMDSCLK+
ATMDSCLK–
BTMDS0+
BTMDS0–
BTMDS1+
BTMDS1–
BTMDS2+
BTMDS2–
BTMDSCLK+
BTMDSCLK–
TS3DV421
HDMI Switch
TMDS0+
TMDS0–
TMDS1+
TMDS1–
TMDS2+
TMDS2–
TMDSCLK+
TMDSCLK–
HDMI
Receiver
HDMI Scalar/
Video Decoder
Display
(DLP, LCD, TV,
PDP, HDTV)
ATMDS0+
ATMDS0–
ATMDS1+
ATMDS1–
ATMDS2+
ATMDS2–
ATMDSCLK+
ATMDSCLK–
BTMDS0+
BTMDS0–
BTMDS1+
BTMDS1–
BTMDS2+
BTMDS2–
BTMDSCLK+
BTMDSCLK–
HDMI
Transmitter 2
HDMI
Transmitter 1
--
TS3DV421
SCDS264D – JANUARY 2008 – REVISED JANUARY 2010
www.ti.com
DESCRIPTION/ORDERING INFORMATION
The TS3DV421 is a 4-channel differential 2:1 multiplexer/demultiplexer digital video switch controlled with one
select input (SEL). SEL controls the data path of the multiplexer/demultiplexer and can be connected to any
GPIO in the system, using an external voltage divider system. The device provides high bandwidth necessary for
DVI and HDMI applications. This device expands the high-speed physical link interface from a single HDMI port
to two HDMI ports (A or B port). The unselected channel is set to a high-impedance state.
The most common application for the TS3DV421 is in the sink application. In this case, there are two sources
(i.e., DVD, set-top box, or game console) that must be routed to one HDMI receiver. The TS3DV421 can route
the signals where one HDMI receiver (in a DLP, LCD TV, PDP, or other high-definition display) can be expanded
to three ports.
The HDMI application calls for a 100-
Ω differential impedance between the differential lines (TMDSn+ and
TMDSn–). Additionally, because the TS3DV421 is a high-bandwidth, low-rON pass transistor-type switch, a
properly designed board retains a 100-
Ω differential impedance through the switch. The unselected port is in the
high-impedance mode, such that the receiver receives information from only one source. HDCP encryption is
passed through the switch for the HDMI receiver to decode.
Table 1. ORDERING INFORMATION
TA
PACKAGE(1) (2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RUA
Tape and reel
TS3DV421RUAR
SD421
–40°C to 85°C
TVSOP – DGV
Tape and reel
TS3DV421DGVR
SD421
(1)
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
(2)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
TYPICAL APPLICATION
2
Submit Documentation Feedback
Copyright © 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): TS3DV421


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