TDA18252HN/C1,551

Product Overview

Category

The TDA18252HN/C1,551 belongs to the category of integrated circuits (ICs) specifically designed for television and radio applications.

Use

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

Characteristics

• High sensitivity: The TDA18252HN/C1,551 has a high sensitivity, allowing it to receive weak signals effectively.
• Low power consumption: This IC is designed to operate with low power consumption, making it energy-efficient.
• Compact package: The TDA18252HN/C1,551 comes in a compact package, enabling easy integration into various electronic devices.
• Wide frequency range: It supports a wide frequency range, ensuring compatibility with different broadcasting standards.

Package

The TDA18252HN/C1,551 is available in a small outline package (SOP), which provides mechanical protection and facilitates soldering onto printed circuit boards.

Essence

The essence of the TDA18252HN/C1,551 lies in its ability to receive and process digital TV signals, providing a crucial component for television reception.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply voltage: 3.3V
• Operating temperature range: -40°C to +85°C
• Frequency range: 42MHz to 1002MHz
• RF input impedance: 75Ω
• Gain control range: -10dB to +50dB
• Power consumption: 150mW

Detailed Pin Configuration

The TDA18252HN/C1,551 features the following pin configuration:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. IF_OUT: Intermediate frequency output
4. IF_IN: Intermediate frequency input
5. AGC_OUT: Automatic gain control output
6. AGC_IN: Automatic gain control input
7. RF_OUT: Radio frequency output
8. RF_IN: Radio frequency input

Functional Features

• High sensitivity RF front-end: The TDA18252HN/C1,551 incorporates a high-sensitivity RF front-end, enabling reliable reception of weak TV signals.
• Integrated automatic gain control (AGC): This IC includes an integrated AGC circuit that automatically adjusts the gain to maintain a consistent signal level.
• Low noise figure: The TDA18252HN/C1,551 has a low noise figure, ensuring minimal degradation of the received signal quality.
• Programmable gain control: It offers programmable gain control, allowing flexibility in adjusting the amplification based on specific requirements.

Advantages and Disadvantages

Advantages

• High sensitivity for reliable signal reception
• Low power consumption for energy efficiency
• Compact package for easy integration
• Wide frequency range for compatibility with various broadcasting standards

Disadvantages

• Limited frequency range compared to some specialized RF front-end ICs
• Requires additional external components for complete TV receiver functionality

Working Principles

The TDA18252HN/C1,551 operates based on the superheterodyne principle. It receives the RF signal from the antenna through the RF input pin. The signal is then amplified, filtered, and downconverted to an intermediate frequency (IF) using internal circuitry. The IF signal is further processed and demodulated to extract the audio and video information.

Detailed Application Field Plans

The TDA18252HN/C1,551 is widely used in various television-related applications, including:

1. Television receivers: It serves as a key component in television receivers, enabling the reception and processing of digital TV signals.
2. Set-top boxes: The IC is commonly used in set-top boxes to receive and decode digital TV signals, providing access to a wide range of channels.
3. Digital video recorders (DVRs): It can be integrated into DVRs to capture and store digital TV broadcasts for later playback.

Detailed and Complete Alternative Models

1. TDA18252HN/C1,552
2. TDA18252HN/C1,553
3. TDA18252HN/C1,554

These alternative models offer similar functionality and characteristics to the TDA18252HN/C1,551, providing options for different design requirements.

In conclusion, the TDA18252HN/C1,551 is an integrated circuit designed for television and radio applications. With its high sensitivity, low power consumption, and compact package, it serves as a crucial component in television receivers and set-top boxes. While it has advantages such as reliable signal reception and energy efficiency, it also has limitations in terms of frequency range and additional external components required. Nonetheless, the TDA18252HN/C1,551 plays a vital role in enabling the reception and processing of