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TDA8374A from PHI,Philips

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TDA8374A

Manufacturer: PHI, PHILIPS

I2C-bus controlled economy PAL/NTSC and NTSC TV-processors

Partnumber Manufacturer Quantity Availability
TDA8374A PHI, PHILIPS 259 In Stock

Description and Introduction

I2C-bus controlled economy PAL/NTSC and NTSC TV-processors The TDA8374A is a multi-standard TV processor IC manufactured by PHILIPS (now NXP Semiconductors). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Manufacturer:** PHILIPS (NXP Semiconductors)  
- **Function:** Multi-standard TV processor (PAL/SECAM/NTSC)  
- **Package:** 52-pin DIL (Dual In-Line) or PLCC (Plastic Leaded Chip Carrier)  
- **Power Supply:** Typically operates at **8V** (analog) and **5V** (digital)  
- **Inputs:**  
  - CVBS (Composite Video Broadcast Signal)  
  - Y/C (Luminance/Chrominance) for S-Video  
  - RGB (for external signals like OSD or VCR)  
- **Outputs:**  
  - RGB signals for CRT drive  
  - Horizontal and vertical sync signals  
  - Fast Blanking signal  

### **Descriptions:**
- The TDA8374A is designed for color TV applications, integrating multiple functions such as video processing, synchronization, and deflection control.  
- It supports multiple video standards (PAL, SECAM, NTSC) and includes features like automatic color detection and alignment.  
- The IC includes a built-in chroma decoder, luminance processor, and horizontal/vertical deflection circuits.  

### **Features:**
1. **Video Processing:**  
   - Integrated chrominance demodulator (PAL/SECAM/NTSC).  
   - Luminance delay line and peaking control.  
   - Black-level stabilization.  

2. **Synchronization & Deflection:**  
   - Horizontal and vertical sync separation.  
   - Automatic frequency control (AFC) for horizontal sync.  
   - Vertical count-down circuit for 50/60 Hz operation.  

3. **RGB Control:**  
   - RGB input for external signals (e.g., on-screen display).  
   - Contrast/brightness adjustment.  

4. **Additional Functions:**  
   - Sandcastle pulse generation.  
   - X-ray protection for CRT safety.  

The TDA8374A was commonly used in CRT television sets and monitors during the 1990s and early 2000s. For exact application details, refer to the official datasheet from NXP.

Application Scenarios & Design Considerations

I2C-bus controlled economy PAL/NTSC and NTSC TV-processors

Alternative Part Number

  • LA76810A --: Single-chip TV signal processor with similar IF, video, chroma and deflection functions, commonly used as a substitute in CRT TV chassis.
  • TA1268N --: Integrated TV signal processing IC covering similar video and sync functions, often cross-referenced for TDA837x-class TV processors.
  • STV2246 --: TV signal processor with comparable IF and video processing blocks, suitable as a functional replacement in similar television designs.
  • TDA8375A --: Same TDA837x family video/deflection processor with closely matching functionality and pinout, from the successor brand of Philips.
  • TDA8362 --: Widely used single-chip TV signal processor covering similar IF, video and deflection functions, often used as a substitute in TV chassis.
  • STV2116 --: Comparable TV video/deflection processing IC from an alternative vendor, suitable for similar CRT television applications.

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