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| 型號(hào)： | TMDS442PNPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP128 |
| 封裝： | GREEN, PLASTIC, TQFP-128 |
| 文件頁(yè)數(shù)： | 1/45頁(yè) |
| 文件大小： | 1977K |
| 代理商： | TMDS442PNPG4 |
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1
FEATURES
APPLICATIONS
DESCRIPTION
Digital TV
TMDS
442
STB
DVDPlayeror DVR
Game
Machine
HighDefinitionDVD Player
SLLS757A – AUGUST 2006 – REVISED MARCH 2007
www.ti.com
4-TO-2 DVI/HDMI SWITCH
I2C Repeater Isolates Bus Capacitance at Both
Ends
2
A 4-to-2 Single-Link or 2-to-1 Dual-Link
DVI/HDMI Physical Layer Switch
TMDS Inputs HBM ESD Protection Exceeds 6
kV
Compatible with HDMI 1.3a
3.3-V Supply Operation
Supports 2.25 Gbps Signaling Rate for 480i/p,
720i/p, and 1080i/p Resolutions up to 12-Bit
128-Pin TQFP Package
Color Depth
ROHS Compatible and 260°C Reflow Rated
Integrated Receiver Terminations
8-dB Receiver Equalizer Compensates for
Digital TV
Losses From Standard HDMI Cables
Digital Projector
Selectable Output De-Emphasis Compensates
Audio Video Receiver
for Losses From Flat Cables
DVI or HDMI Switch
High-Impedance Outputs When Disabled
The TMDS442, 4-to-2 port DVI/HDMI switch, allows up to 4 digital video interface (DVI) or high-definition
multimedia interface (HDMI) ports to be switched to two independent display blocks. The essential requirement
of picture-in-picture display from two digital audiovisual sources is having two individual DVI or HDMI receivers in
a digital display system. TMDS442 supports two DVI or HDMI receivers to enable multiple-source selection
(picture-in-picture), as well as supports acting as a 4-input 1-output video switch.
Each input or output port contains one 5-V power indicator (5V_PWR), one hot plug detector (HPD), a pair of I2C
interface signals (SCL/SDA), and four TMDS channels supporting data rates up to 2.25 Gbps. The 5-V power
indicator and the hot plug detector are pulled down with internal resistors, forcing a low state on these pins until
receiving a valid high signal. The I2C interface is constructed by an I2C repeater circuit to isolate the capacitance
form both ends of the buses. TMDS receivers integrate 50-
termination resistors pulled up to VCC, which
eliminates the need for external terminations. An 8-dB input equalization cooperates to each TMDS receiver
inputs to optimize system performance through 5-meter or longer DVI or HDMI compliant cables.
TYPICAL APPLICATION
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2006–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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| TMDS442PNPR | SPECIALTY CONSUMER CIRCUIT, PQFP128 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMDS442PNPR | 功能描述:視頻開(kāi)關(guān) IC 4-to-2 DVI/HDMI Sw Pwr I/O Exp RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| TMDS442PNPRG4 | 功能描述:視頻開(kāi)關(guān) IC 4-to-2 DVI/HDMI Sw Pwr I/O Exp RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| TMDS461 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:1080p a?? Deep Color 4-to-1 HDMI/DVI Switch with Adaptive Equalization |
| TMDS461PZT | 功能描述:視頻開(kāi)關(guān) IC 4 to 1 HDMI Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| TMDS461PZTR | 功能描述:視頻開(kāi)關(guān) IC 4 to 1 HDMI Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
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