• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

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.

特性

• Compatible with HDMI 1.3a
• Supports 2.5 Gbps Signaling Rate for 480i/p, 720i/p, and 1080i/p Resolutions up to 12-Bit Color Depth
• Integrated Switchable Receiver Termination
• Selectable Receiver Equalization to Accommodate to Different Input Cable Lengths
• Intra-Pair Skew < 40 ps
• Inter-Pair Skew < 65 ps
• HBM ESD Protection Exceeds 8 kV to TMDS Inputs
• 3.3-V Fixed Supply to TMDS I/Os
• 5-V Fixed Supply to HPD, DDC, and Source Selection Circuits
• 64-Pin TQFP Package
• Footprint Compatible with 3-to-1 Switch TMDS351 with Port 3 Disabled
• ROHS Compatible and 260°C Reflow Rated
• TMDS250 is Available with Port 1 Disabled and Ports 2 and 3 Enabled
• Supports 5-V to 3.3-V Level Shifting on DDC Links
• APPLICATIONS
  • Digital TV
  • Digital Projector