4-to-2 DVI/HDMI Switch 128-HTQFP 0 to 70 The TMDS442 is a high-speed TMDS (Transition Minimized Differential Signaling) digital switch manufactured by Texas Instruments (TI). Here are its key specifications, descriptions, and features:
### **Specifications:**
- **Number of Ports:** 4 input ports, 2 output ports (4:2 configuration).
- **Data Rate Support:** Up to 2.25 Gbps per lane (supports HDMI 1.3 and DVI 1.0 standards).
- **Signal Type:** TMDS (Transition Minimized Differential Signaling).
- **Voltage Supply:** 3.3V single supply.
- **Power Consumption:** Low power consumption in active and standby modes.
- **Operating Temperature Range:** -40°C to +85°C.
- **Package Type:** 48-pin TQFP (Thin Quad Flat Package).
### **Descriptions:**
- The TMDS442 is a high-performance digital switch designed for routing TMDS signals in HDMI and DVI applications.
- It enables seamless switching between multiple input sources to one or two display outputs.
- The device supports hot-plug detection (HPD) and Display Data Channel (DDC) pass-through for HDMI compliance.
- It is commonly used in AV receivers, video switches, and display systems.
### **Features:**
- **4:2 TMDS Switching:** Routes signals from four inputs to two outputs.
- **Hot-Plug Detection (HPD) Support:** Ensures compatibility with HDMI/DVI standards.
- **DDC Pass-Through:** Supports EDID (Extended Display Identification Data) communication.
- **Low Skew & Jitter:** Maintains signal integrity for high-speed video transmission.
- **Integrated Termination:** Reduces external component requirements.
- **ESD Protection:** Protects against electrostatic discharge (IEC 61000-4-2 compliant).
- **Power-Down Mode:** Reduces power consumption when inactive.
This information is based solely on the manufacturer's datasheet and technical documentation.
