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SN761678BDBT from TEXAS

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SN761678BDBT

Manufacturer: TEXAS, TI

TV TUNER IC
Partnumber Manufacturer Quantity Availability
SN761678BDBT TEXAS, TI 1718 In Stock

Description and Introduction

TV TUNER IC The SN761678BDBT is a digital TV tuner IC manufactured by Texas Instruments. Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments  
- **Part Number:** SN761678BDBT  
- **Package:** TSSOP-38  
- **Type:** Digital TV Tuner IC  
- **Frequency Range:** Supports VHF and UHF bands  
- **Input Frequency:** Typically 48 MHz to 862 MHz  
- **IF Output Frequency:** Configurable (e.g., 36 MHz)  
- **Supply Voltage:** Typically 3.3V  
- **Current Consumption:** Low power operation (exact value depends on mode)  
- **Interface:** I²C control interface  

### **Descriptions:**
- Designed for digital TV reception (DVB-T, DVB-H, ISDB-T, etc.).  
- Integrates RF front-end functions, including a low-noise amplifier (LNA), mixer, PLL, and IF amplifier.  
- Suitable for portable and fixed digital TV applications.  

### **Features:**
- **High Integration:** Combines multiple tuner functions into a single chip.  
- **Low Noise Figure:** Optimized for high sensitivity.  
- **Wide Frequency Coverage:** Supports global digital TV standards.  
- **Low Power Consumption:** Ideal for battery-powered devices.  
- **I²C Control:** Allows easy configuration via a microcontroller.  
- **Small Form Factor:** TSSOP-38 package for space-constrained designs.  

For exact performance parameters, refer to the official datasheet from Texas Instruments.

Application Scenarios & Design Considerations

TV TUNER IC

Alternative Part Number

  • TDA9885T --: IF demodulator/PLL tuner IC with similar TV/video IF signal processing function, widely used as a cross-vendor substitute in tuner designs.
  • TDA9886T --: Closely related IF-PLL demodulator family member with comparable functionality and pinout, suitable for TV tuner IF stages.
  • MSP3410G --: Multi-standard sound/IF processing IC covering similar TV signal demodulation roles, usable as a functional alternative where the tuner IF chain is redesigned.
  • TLC2932IPW --: TI PLL/VCO synthesizer in TSSOP package with similar function and supply range, suitable as a functional replacement after pinout verification.
  • CD74HC4046AM --: Widely available CMOS PLL IC offering comparable phase-locked loop functionality, though external VCO components may be required.
  • MC145151DW2 --: Parallel-input PLL frequency synthesizer in SOIC package, a common alternative for similar synthesizer applications with different pinout.

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