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| 型号： | TMDS250PAGRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封装： | GREEN, PLASTIC, TQFP-64 |
| 文件页数： | 1/27页 |
| 文件大小： | 709K |
| 代理商： | TMDS250PAGRG4 |
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1
FEATURES
APPLICATIONS
DESCRIPTION
STB
DigitalTV
DVDPlayer
TMDS250
2-to-1
PHY SX
SLLS866 – AUGUST 2007
www.ti.com
2.5 Gbps 2-TO-1 DVI/HDMI SWITCH
3.3-V Fixed Supply to TMDS I/Os
Compatible with HDMI 1.3a
5-V Fixed Supply to HPD, DDC, and Source
Selection Circuits
Supports 2.5 Gbps Signaling Rate for 480i/p,
720i/p, and 1080i/p Resolutions up to 12-Bit
64-Pin TQFP Package
Color Depth
Footprint Compatible with 3-to-1 Switch
Integrated Switchable Receiver Termination
TMDS351 with Port 1 Disabled
Selectable Receiver Equalization to
ROHS Compatible and 260°C Reflow Rated
Accommodate to Different Input Cable
TMDS251 is Available with Port 3 Disabled and
Lengths
Ports 1 and 2 Enabled
Intra-Pair Skew < 40 ps
Supports 5-V to 3.3-V Level Shifting on DDC
Inter-Pair Skew < 65 ps
Links
HBM ESD Protection Exceeds 8 kV to TMDS
Inputs
Digital TV
Digital Projector
The TMDS250 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.
相关PDF资料 |
PDF描述 |
|---|---|
| TMDS250PAGR | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TMDS251PAGR | 3-CHANNEL, AUDIO/VIDEO SWITCH, PQFP64 |
| TMDS251PAGRG4 | 3-CHANNEL, AUDIO/VIDEO SWITCH, PQFP64 |
| TMDS261BPAGR | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TMDS261BPAG | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TMDS251 | 制造商:TI 制造商全称:Texas Instruments 功能描述:2.5 Gbps 2-TO-1 DVI/HDMI SWITCH |
| TMDS251PAGR | 功能描述:视频开关 IC 2-to-1 HDMI Switch RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| TMDS251PAGRG4 | 功能描述:视频开关 IC 2-to-1 HDMI Switch RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| TMDS261 | 制造商:TI 制造商全称:Texas Instruments 功能描述:1080p - Deep Color 2-to-1 HDMI/DVI Switch With Adaptive Equalization |
| TMDS261BPAG | 功能描述:多路器开关 IC 2 to 1 HDMI switch RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
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