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TDA18250HN/C1,557
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TDA18250HN/C1,557

Product Overview

Category

The TDA18250HN/C1,557 belongs to the category of integrated circuits (ICs) specifically designed for television applications.

Use

This product is primarily used in television receivers and set-top boxes to receive and process digital TV signals.

Characteristics

  • The TDA18250HN/C1,557 is a highly integrated RF tuner and demodulator IC.
  • It supports various digital TV standards, including DVB-T/T2, ISDB-T, and DTMB.
  • The IC operates in the UHF/VHF frequency range, covering a wide spectrum of TV channels.
  • It offers excellent sensitivity and selectivity, ensuring reliable reception even in challenging signal conditions.
  • The TDA18250HN/C1,557 incorporates advanced digital signal processing algorithms for enhanced performance.

Package

The TDA18250HN/C1,557 is available in a compact surface-mount package, making it suitable for space-constrained applications.

Essence

The essence of this product lies in its ability to receive and demodulate digital TV signals, providing high-quality audio and video output.

Packaging/Quantity

The TDA18250HN/C1,557 is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

  • Frequency Range: 48 MHz to 1002 MHz
  • Supported TV Standards: DVB-T/T2, ISDB-T, DTMB
  • Supply Voltage: 3.3 V
  • Power Consumption: 500 mW
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TDA18250HN/C1,557 features the following pin configuration:

  1. RF_IN: RF input pin
  2. AGC_OUT: Automatic Gain Control output pin
  3. IF_OUT: Intermediate Frequency output pin
  4. SDA: I2C Serial Data input pin
  5. SCL: I2C Serial Clock input pin
  6. VCC: Supply voltage pin
  7. GND: Ground pin

Functional Features

  • High sensitivity and selectivity for reliable reception
  • Low power consumption for energy-efficient operation
  • Integrated automatic gain control (AGC) circuitry for signal optimization
  • Built-in digital signal processing algorithms for enhanced performance
  • I2C interface for easy control and configuration

Advantages and Disadvantages

Advantages

  • Wide frequency range coverage
  • Support for multiple TV standards
  • Compact package size
  • Excellent sensitivity and selectivity
  • Integrated AGC circuitry for signal optimization

Disadvantages

  • Limited operating temperature range
  • Requires external I2C interface for control and configuration

Working Principles

The TDA18250HN/C1,557 operates based on the principle of RF tuning and demodulation. It receives the RF signal from the antenna through the RF_IN pin and processes it using internal circuitry. The integrated AGC circuit ensures optimal signal strength, while the digital signal processing algorithms enhance the quality of the audio and video output.

Detailed Application Field Plans

The TDA18250HN/C1,557 is widely used in various television applications, including:

  1. Television receivers
  2. Set-top boxes
  3. Digital TV tuners
  4. Digital video recorders (DVRs)
  5. Multimedia devices with TV reception capabilities

Detailed and Complete Alternative Models

  1. TDA18250HN/C1,558
  2. TDA18250HN/C1,559
  3. TDA18250HN/C1,560
  4. TDA18250HN/C1,561

These alternative models offer similar functionality and compatibility with different TV standards, providing flexibility for various application requirements.

In conclusion, the TDA18250HN/C1,557 is a highly integrated RF tuner and demodulator IC designed for digital TV applications. Its wide frequency range coverage, support for multiple TV standards, and compact package size make it an ideal choice for television receivers and set-top boxes. With its advanced features and excellent performance, the TDA18250HN/C1,557 offers reliable reception and high-quality audio/video output in various television applications.

Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät TDA18250HN/C1,557 :n soveltamiseen teknisissä ratkaisuissa

  1. Q: What is the maximum frequency range supported by TDA18250HN/C1,557?
    A: The TDA18250HN/C1,557 supports a frequency range of 42 MHz to 1002 MHz.

  2. Q: Can TDA18250HN/C1,557 be used for digital cable and terrestrial TV reception?
    A: Yes, TDA18250HN/C1,557 is suitable for both digital cable and terrestrial TV reception.

  3. Q: What is the typical power consumption of TDA18250HN/C1,557 during operation?
    A: The typical power consumption of TDA18250HN/C1,557 during operation is 1.5 W.

  4. Q: Does TDA18250HN/C1,557 support integrated AGC (Automatic Gain Control)?
    A: Yes, TDA18250HN/C1,557 features integrated AGC functionality.

  5. Q: Is TDA18250HN/C1,557 compatible with common demodulators and MPEG decoders?
    A: Yes, TDA18250HN/C1,557 is compatible with common demodulators and MPEG decoders.

  6. Q: What are the recommended operating conditions for TDA18250HN/C1,557?
    A: The recommended operating voltage for TDA18250HN/C1,557 is 3.3 V, with a temperature range of -40°C to 85°C.

  7. Q: Can TDA18250HN/C1,557 be used in automotive applications?
    A: Yes, TDA18250HN/C1,557 is suitable for automotive applications.

  8. Q: Does TDA18250HN/C1,557 require an external balun for RF input?
    A: No, TDA18250HN/C1,557 does not require an external balun for RF input.

  9. Q: What are the key features that differentiate TDA18250HN/C1,557 from other RF tuners?
    A: TDA18250HN/C1,557 offers low power consumption, high linearity, and integrated AGC, making it suitable for various technical solutions.

  10. Q: Are evaluation boards or reference designs available for TDA18250HN/C1,557?
    A: Yes, evaluation boards and reference designs are available to facilitate the integration of TDA18250HN/C1,557 into technical solutions.