TDA18287HN/C1Y

Product Overview

Category

The TDA18287HN/C1Y belongs to the category of integrated circuits (ICs) specifically designed for television and radio applications.

Use

This IC is primarily used in digital television receivers, providing high-performance tuning capabilities.

Characteristics

• High sensitivity: The TDA18287HN/C1Y offers excellent sensitivity, ensuring optimal reception quality.
• Wide frequency range: It covers a broad frequency range, allowing for reception of various channels.
• Low power consumption: This IC is designed to operate efficiently with minimal power consumption.
• Compact package: The TDA18287HN/C1Y comes in a compact package, making it suitable for space-constrained applications.
• Enhanced signal processing: It incorporates advanced signal processing techniques to improve overall performance.

Package and Quantity

The TDA18287HN/C1Y is available in a small outline package (SOP) with 24 pins. It is typically sold in reels containing 250 units.

Specifications

• Supply voltage: 3.3V
• Frequency range: 48MHz - 1002MHz
• RF input impedance: 75Ω
• IF output impedance: 50Ω
• Operating temperature range: -40°C to +85°C
• Power consumption: 150mW (typical)

Pin Configuration

The TDA18287HN/C1Y features the following pin configuration:

Pin Number | Pin Name | Function -----------|----------|--------- 1 | VCC | Power supply 2 | GND | Ground 3 | XTAL | Crystal oscillator input 4 | XTAL_OUT | Crystal oscillator output 5 | AGC | Automatic Gain Control 6 | IF_OUT | Intermediate Frequency output 7 | IF_IN | Intermediate Frequency input 8 | RF_OUT | Radio Frequency output 9 | RF_IN | Radio Frequency input 10 | VIF | Video Intermediate Frequency 11 | SDA | Serial Data 12 | SCL | Serial Clock 13-24 | NC | Not connected

Functional Features

1. High sensitivity RF tuner: The TDA18287HN/C1Y offers excellent sensitivity, ensuring reliable reception even in weak signal areas.
2. Automatic Gain Control (AGC): It incorporates an AGC circuit that maintains a consistent output level, compensating for variations in input signal strength.
3. Integrated IF amplifier: The IC includes an integrated Intermediate Frequency (IF) amplifier, enhancing the overall signal quality.
4. Crystal oscillator: The built-in crystal oscillator ensures stable and accurate frequency tuning.

Advantages and Disadvantages

Advantages

• High sensitivity enables reliable reception in challenging environments.
• Wide frequency range allows for versatile channel selection.
• Low power consumption contributes to energy efficiency.
• Compact package suits space-constrained applications.
• Advanced signal processing techniques enhance overall performance.

Disadvantages

• Limited pin configuration may restrict certain customization options.
• Requires additional external components for complete system integration.

Working Principles

The TDA18287HN/C1Y operates based on the superheterodyne principle. It receives the radio frequency (RF) signal from the antenna and converts it to an intermediate frequency (IF) signal using a mixer and local oscillator. The IF signal is then amplified, filtered, and demodulated to extract the desired audio and video information.

Detailed Application Field Plans

The TDA18287HN/C1Y is widely used in various digital television applications, including:

1. Set-top boxes: It serves as a key component in set-top boxes, enabling seamless reception of digital TV signals.
2. Digital TVs: The IC is integrated into digital television sets, ensuring optimal tuning performance.
3. Digital video recorders (DVRs): It facilitates the reception and processing of digital TV signals in DVRs.
4. PC TV tuners: The TDA18287HN/C1Y enables PC users to watch and record digital TV programs on their computers.

Detailed Alternative Models

For those seeking alternative options, the following ICs can be considered:

1. TDA18272HN/C1Y
2. TDA18278HN/C1Y
3. TDA18286HN/C1Y
4. TDA18288HN/C1Y

These models offer similar functionality and characteristics, providing flexibility for different design requirements.

In conclusion, the TDA18287HN/C1Y is a high-performance RF tuner IC designed for digital television applications. With its excellent sensitivity, wide frequency range, and compact package, it offers reliable and efficient tuning capabilities. While it has certain limitations, its advantages outweigh the disadvantages, making it a popular choice in the industry.