• - 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 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.

特性

• A 4-to-2 Single-Link or 2-to-1 Dual-Link DVI/HDMI Physical Layer Switch
• Compatible with HDMI 1.3a
• Supports 2.25 Gbps Signaling Rate for 480i/p, 720i/p, and 1080i/p Resolutions up to 12-Bit Color Depth
• Integrated Receiver Terminations
• 8-dB Receiver Equalizer Compensates for Losses From Standard HDMI Cables
• Selectable Output De-Emphasis Compensates for Losses From Flat Cables
• High-Impedance Outputs When Disabled
• I²C Repeater Isolates Bus Capacitance at Both Ends
• TMDS Inputs HBM ESD Protection Exceeds 6 kV
• 3.3-V Supply Operation
• 128-Pin TQFP Package
• ROHS Compatible and 260°C Reflow Rated
• APPLICATIONS
  • Digital TV
  • Digital Projector
  • Audio Video Receiver
  • DVI or HDMI Switch

PowerPAD is a trademark of Texas Instruments.