- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98266 > TMDS361PAG (TEXAS INSTRUMENTS INC) SPECIALTY CONSUMER CIRCUIT, PQFP64 PDF資料下載
參數(shù)資料
| 型號(hào)： | TMDS361PAG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 22/43頁 |
| 文件大?。?/td> | 2159K |
| 代理商： | TMDS361PAG |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁當(dāng)前第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁
A DTV Supporting an Active CEC Link
Case 1 – AC-Coupled Source (See Figure 35, Port 1)
Case 2 – DC-Coupled Source (See Figure 35, Port 2)
Case 3 – External Logic Control for HPD (See Figure 35, Port 3)
www.ti.com............................................................................................................................................ SLLS919A – DECEMBER 2008 – REVISED JANUARY 2009
In Figure 35, the CEC PHY and CEC LOGIC functions are added. The DTV can initiate and/or react to CEC
signals from its remote control or other audio/video products on the same CEC bus. All sources must have their
own CEC physical address to support the full functionality of the CEC link.
A source reads its CEC physical address stored its E-EDID memory after receiving a logic-high from the HPD
feedback. When HPD is high, the sink-assigned CEC physical address should be maintained. Otherwise, when
HPD is low, the source sets CEC physical address value to (F.F.F.F).
When the source TMDS lines are ac-coupled or when the source cannot detect the TMDS termination provided
in the connected sink, the indication of the source selection can only come from the HPD signal. The TMDS361
HPD1 pin should be applied directly as the HPD signal back to the source.
When the source TMDS lines are dc-coupled, there are two methods to inform the source that it is the active
source to the sink. One is checking the HPD signal from the sink, and the other is checking the termination
condition in the sink.
In a full-CEC operation mode, the HPD signal is set high whether the port is selected or not. The source loads
and maintains the CEC physical address when HPD is high. As soon as HPD goes low, the source loses the
CEC physical address. To keep the CEC physical address to the source, the HPD signal is looping back from the
source-provided 5-V signal through a 1-k
pullup resistor in the sink. This method is acceptable in applications
where the HDMI transmitter can detect the receiver termination by current sensing and the receiver has
switchable termination on the TMDS inputs. The internal termination resistors are connected to the termination
voltage when the port is selected, or they are disconnected when the port is not selected. The TMDS361
features switchable termination on the TMDS inputs.
When the HDMI transmitter does not have the capability of detecting the receiver termination, using the HPD
signal as a reference for sensing port selections is the only possible method. External control logic for switching
the connections of the HPD signals between the HPD pins of the TMDS361 and the 5-V signal from the source
provides a good solution.
E-EDID Reading Configurations in Standby Mode
When the TMDS361 is in standby mode operation, S1 = H and S2 = L, all sources can read their E-EDID
memories simultaneously with all HPD pins following HPD_SINK in logic-high. HPD_SINK input low prevents
E-EDID reading in standby-mode operation.
Copyright 2008–2009, Texas Instruments Incorporated
29
Product Folder Link(s) :TMDS361
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TMDS442PNPG4 | SPECIALTY CONSUMER CIRCUIT, PQFP128 |
| TMDS442PNPR | SPECIALTY CONSUMER CIRCUIT, PQFP128 |
| TMDS442PNP | SPECIALTY CONSUMER CIRCUIT, PQFP128 |
| TMDS442PNPRG4 | SPECIALTY CONSUMER CIRCUIT, PQFP128 |
| TMDS461PZIT | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMDS361PAGR | 功能描述:視頻開關(guān) IC 3 to 1 HDMI Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開啟時(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 |
| TMDS361PAGT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1080p - Deep Color 3-to-1 HDMI/DVI Switch with Adaptive Equalization |
| TMDS37000 | 制造商:Texas Instruments 功能描述:STARTER PACK TMS370 |
| TMDS3700572A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TMS370 MICROCONTROLLER FAMILY DATA BOOK |
| TMDS3740555-09 | 功能描述:開發(fā)軟件 TMS370 Optimizing C Cross Compiler RoHS:否 制造商:Atollic Inc. 產(chǎn)品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。