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FMS6407MTC20X from FAIR,Fairchild Semiconductor

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FMS6407MTC20X

Manufacturer: FAIR, FAI, FAIRCHILD

Triple Video Drivers with Selectable HD/Progressive/SD/Bypass Filters

Partnumber Manufacturer Quantity Availability
FMS6407MTC20X FAIR, FAI, FAIRCHILD 7692 In Stock

Description and Introduction

Triple Video Drivers with Selectable HD/Progressive/SD/Bypass Filters The part **FMS6407MTC20X** is manufactured by **Fairchild Semiconductor** (now part of ON Semiconductor). Below are its key specifications:  

- **Type**: Video Filter  
- **Function**: 6th Order Low-Pass Filter  
- **Number of Channels**: 1  
- **Cutoff Frequency (-3dB)**: 20 MHz  
- **Input Voltage Range**: 4.5V to 5.5V  
- **Operating Temperature Range**: -40°C to +85°C  
- **Package**: TSSOP-20  
- **Applications**: Video signal conditioning, RGB/YUV filtering  
- **Features**:  
  - Integrated reconstruction filter  
  - DC-coupled input/output  
  - Low differential gain/phase error  

This information is based on Fairchild's datasheet for the FMS6407MTC20X.

Application Scenarios & Design Considerations

Triple Video Drivers with Selectable HD/Progressive/SD/Bypass Filters# Technical Documentation: FMS6407MTC20X Video Filter Driver

 Manufacturer : Fairchild Semiconductor (now part of ON Semiconductor)
 Component Type : Integrated Video Filter Driver with 6th-Order Low-Pass Filter
 Package : TSSOP-20

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## 1. Application Scenarios

### Typical Use Cases
The FMS6407MTC20X is a specialized video signal conditioning IC designed for broadcast-quality video applications. Its primary function is to reconstruct and drive analog video signals in systems where digital-to-analog conversion (DAC) has occurred.

 Primary Applications Include: 
-  Set-Top Boxes and Digital TV Receivers : Reconstructing component video (YPbPr) or composite video from digital MPEG decoders
-  DVD/Blu-ray Players : Driving high-quality analog video outputs from digital video processors
-  Video Game Consoles : Providing clean analog video outputs from digital graphics processors
-  Professional Video Equipment : Signal conditioning in broadcast monitors and video distribution systems
-  Medical Imaging Displays : High-fidelity video reconstruction for diagnostic displays

### Industry Applications
 Consumer Electronics : The device excels in consumer video products requiring multiple analog outputs. Its integrated reconstruction filters eliminate the need for external passive filter networks, saving board space and reducing component count in cost-sensitive designs.

 Broadcast & Professional AV : In professional applications, the FMS6407MTC20X's excellent differential gain/phase performance (typically 0.1%/0.1°) ensures broadcast-quality signal integrity, making it suitable for master control monitors and production equipment.

 Industrial Imaging Systems : The device's stable performance across temperature ranges (-40°C to +85°C) makes it suitable for industrial inspection systems and medical imaging where reliable video signal integrity is critical.

### Practical Advantages and Limitations

 Advantages: 
-  Integrated Solution : Combines 6th-order Butterworth filter and line driver in single package
-  Flexible Configuration : Supports both AC-coupled and DC-coupled outputs
-  Low Power Consumption : Typically 75mW per channel at 5V supply
-  Excellent Video Performance : 0.1% differential gain, 0.1° differential phase
-  Space Efficient : TSSOP-20 package minimizes PCB footprint
-  Direct DAC Interface : Compatible with most video DAC outputs

 Limitations: 
-  Fixed Filter Characteristics : 8MHz cutoff frequency (SDTV) may not be optimal for all applications
-  Limited to Standard Definition : Not suitable for HDTV signals without external filtering
-  Single Supply Operation : Requires clean 5V supply with proper decoupling
-  No Built-in Sync Processing : Requires separate sync handling circuitry
-  Thermal Considerations : Maximum junction temperature of 150°C requires attention in high-ambient environments

---

## 2. Design Considerations

### Common Design Pitfalls and Solutions

 Pitfall 1: Improper Power Supply Decoupling 
*Problem*: Insufficient decoupling causes visible artifacts in video output, particularly at high frequencies.
*Solution*: Place 0.1μF ceramic capacitors within 5mm of each power pin, with a 10μF tantalum capacitor per supply rail.

 Pitfall 2: Incorrect Output Loading 
*Problem*: Driving capacitive loads >50pF directly can cause ringing and instability.
*Solution*: Add small series resistors (10-33Ω) at outputs when driving cables or capacitive loads.

 Pitfall 3: Thermal Management Issues 
*Problem*: Inadequate thermal relief causes performance degradation in high-temperature environments.
*Solution*: Use thermal vias under the package and ensure adequate copper pour for heat dissipation.

 Pitfall 4: Grounding Problems 
*Problem*: Mixed analog/digital ground currents cause visible noise in video signals.

Alternative Part Number

  • LMH6739MQ --: Triple video amplifier with similar gain and bandwidth characteristics, suitable as a functional replacement in video signal chains.
  • AD813ARZ --: Triple high-speed video amplifier offering comparable performance for driving RGB video signals.
  • LT6552CS8 --: Triple video amplifier with similar supply range and output drive, usable as an alternative in video applications.
  • AD8073JRZ --: Low-cost triple video amplifier with similar supply range and bandwidth, a practical alternative for video buffering tasks.
  • LMH6738MQX --: Triple high-speed video op-amp with similar bandwidth and drive capability, suitable replacement for video filtering/buffering applications.
  • EL5364ISZ --: Triple current-feedback video amplifier with similar supply range and video performance, usable as an alternative in video signal chains.

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