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參數(shù)資料
| 型號： | TMDS251PAGR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 多路復用及模擬開關 |
| 英文描述： | 3-CHANNEL, AUDIO/VIDEO SWITCH, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 751K |
| 代理商： | TMDS251PAGR |
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1
FEATURES
APPLICATIONS
DESCRIPTION
STB
DigitalTV
DVDPlayer
TMDS251
2-to-1
PHY SX
SLLS852 – AUGUST 2007
www.ti.com
2.5 Gbps 2-TO-1 DVI/HDMI SWITCH
5-V Fixed Supply to HPD, DDC, and Source
Selection Circuits
Compatible with HDMI 1.3a
64-Pin TQFP Package
Supports 2.5 Gbps Signaling Rate for 480i/p,
720i/p, and 1080i/p Resolutions up to 12-Bit
Footprint Compatible with 3-to-1 Switch
Color Depth
TMDS351 with Port 3 Disabled
Integrated Switchable Receiver Termination
ROHS Compatible and 260
°C Reflow Rated
Selectable Receiver Equalization to
TMDS250 is Available with Port 1 Disabled
Accommodate to Different Input Cable
and Ports 2 and 3 Enabled
Lengths
Supports 5-V to 3.3-V Level Shifting on DDC
Intra-Pair Skew < 40 ps
Links
Inter-Pair Skew < 65 ps
HBM ESD Protection Exceeds 8 kV to TMDS
Digital TV
Inputs
Digital Projector
3.3-V Fixed Supply to TMDS I/Os
The TMDS251 is a 2-port digital video interface (DVI) or high-definition multimedia interface (HDMI) switch that
allows up to 2 DVI or HDMI ports to be switched to a single display terminal. Four TMDS channels, one hot plug
detector, and a digital display control (DDC) interface are supported on each port. Each TMDS channel supports
signaling rates up to 2.5 Gbps to allow 1080p resolution in 12-bit color depth.
The input port is enabled by configuring source selectors, S1 and S2. When an input port is selected, the TMDS
inputs are connected to the TMDS outputs through a 2-to-1 multiplexer, the MOSFET between the input DDC
channel and the output DDC channel is turned on, and the HPD output follows the state of the HPD_SINK. The
other input port is inactive with disconnected input terminations, disconnected TMDS inputs to the outputs,
disconnected DDC inputs to the outputs, and the HPD outputs are low state. Check the source selection look up
table for the details of port selections.
When S1 is high and S2 is low, all input terminations are disconnected, TMDS inputs are high impedance with
standard TMDS terminations, all internal MOSFETs are turned off to disable the DDC links, and all HPD outputs
are connected to the HPD_SINK. This allows the initiation of the HDMI physical address discovery process.
Termination resistors (50-
), pulled up to VCC, are integrated at each TMDS receiver input. External terminations
are not required. A precision resistor is connected externally from the VSADJ pin to ground for setting the
differential output voltage to be compliant with the TMDS standard.
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.
PRODUCTION DATA information is current as of publication date.
Copyright 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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|---|---|
| TMDS251PAGRG4 | 3-CHANNEL, AUDIO/VIDEO SWITCH, PQFP64 |
| TMDS261BPAGR | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TMDS261BPAG | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TMDS261PAGR | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TMDS261PAG | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TMDS251PAGRG4 | 功能描述:視頻開關 IC 2-to-1 HDMI Switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（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 |
| TMDS261 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1080p - Deep Color 2-to-1 HDMI/DVI Switch With Adaptive Equalization |
| TMDS261BPAG | 功能描述:多路器開關 IC 2 to 1 HDMI switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| TMDS261BPAGR | 功能描述:視頻開關 IC 2 to 1 HDMI switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（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 |
| TMDS261PAG | 功能描述:視頻開關 IC 2 to 1 HDMI Switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（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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