TDA18222HN/C1Y

Product Overview

Category

TDA18222HN/C1Y 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

• High sensitivity: The TDA18222HN/C1Y offers excellent reception capabilities, ensuring reliable signal reception even in areas with weak signal strength.
• Low power consumption: This IC is designed to operate efficiently while consuming minimal power, making it suitable for energy-conscious applications.
• Compact package: The TDA18222HN/C1Y is available in a small form factor package, enabling its integration into space-constrained devices.
• Wide frequency range: It supports a broad frequency range, allowing it to receive various digital TV standards.

Package

The TDA18222HN/C1Y is typically packaged in a compact and robust plastic housing, ensuring protection during handling and installation.

Essence

The essence of the TDA18222HN/C1Y lies in its ability to receive and process digital TV signals, providing high-quality audio and video output.

Packaging/Quantity

This product is commonly supplied in reels or trays, with quantities varying depending on customer requirements. Typical packaging options include 2500 units per reel or 100 units per tray.

Specifications

• Frequency range: 42 MHz to 1002 MHz
• Supply voltage: 3.3 V
• Current consumption: 50 mA (typical)
• RF input impedance: 75 ohms
• Output format: I2C interface
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The TDA18222HN/C1Y features the following pin configuration:

1. VCC: Power supply input
2. GND: Ground connection
3. RF_IN: RF input for the TV signal
4. IF_OUT: Intermediate frequency output
5. SDA: I2C serial data input/output
6. SCL: I2C serial clock input

Functional Features

• Automatic gain control (AGC): The TDA18222HN/C1Y incorporates AGC functionality to maintain a consistent signal level, compensating for variations in input signal strength.
• Channel filtering: It includes built-in filters to reject unwanted signals and interference, ensuring optimal reception quality.
• Low noise figure: This IC minimizes the introduction of additional noise during signal processing, resulting in improved signal-to-noise ratio.
• High linearity: The TDA18222HN/C1Y maintains high linearity throughout its frequency range, reducing distortion and preserving signal integrity.

Advantages and Disadvantages

Advantages

• Excellent sensitivity for reliable signal reception
• Low power consumption for energy-efficient operation
• Compact package for easy integration into devices
• Wide frequency range for compatibility with various digital TV standards

Disadvantages

• Limited availability of alternative models from different manufacturers
• Requires external components for complete TV receiver implementation

Working Principles

The TDA18222HN/C1Y operates based on the superheterodyne principle. It receives the RF signal through the RFIN pin and downconverts it to an intermediate frequency (IF) signal using internal mixers and local oscillators. The IFOUT pin provides the demodulated and filtered IF signal for further processing by downstream circuitry.

Detailed Application Field Plans

The TDA18222HN/C1Y is widely used in the following applications:

1. Digital television receivers
2. Set-top boxes
3. Digital video recorders (DVRs)
4. Television tuner modules

Detailed and Complete Alternative Models

While the TDA18222HN/C1Y is a popular choice for TV applications, alternative models from different manufacturers include:

• TDA18218HN/C1Y
• MAX3543
• CXD2837ER

These alternative models offer similar functionality and can be considered as substitutes depending on specific requirements.

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