TDA18267HB/C1Y

Product Overview

Category

TDA18267HB/C1Y belongs to the category of integrated circuits (ICs) specifically designed for television and radio applications.

Use

This product is primarily used in digital television receivers, providing high-quality signal reception and processing capabilities.

Characteristics

• High sensitivity: TDA18267HB/C1Y is known for its excellent sensitivity, allowing it to receive weak signals with minimal distortion.
• Wide frequency range: It covers a broad frequency range, enabling reception of various TV and radio signals.
• Low power consumption: The IC is designed to operate efficiently, consuming minimal power during operation.
• Compact package: TDA18267HB/C1Y comes in a compact package, making it suitable for space-constrained applications.
• Easy integration: It can be easily integrated into existing circuit designs due to its standardized pin configuration.

Package and Quantity

TDA18267HB/C1Y is typically packaged in a small outline package (SOP) or quad flat no-leads (QFN) package. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Essence

The essence of TDA18267HB/C1Y lies in its ability to receive and process digital television signals, ensuring optimal picture and sound quality for end-users.

Specifications

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

Detailed Pin Configuration

TDA18267HB/C1Y features a specific pin configuration that facilitates its integration into various circuit designs. The following table provides a detailed pin description:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VCC | Power supply voltage input | | 2 | GND | Ground reference | | 3 | RFIN | RF signal input | | 4 | IFOUT | Intermediate frequency (IF) output | | 5 | AGC | Automatic Gain Control (AGC) control voltage input | | 6 | SDA | I2C serial data input/output | | 7 | SCL | I2C serial clock input | | 8 | XTAL | Crystal oscillator input |

Functional Features

1. High Sensitivity

TDA18267HB/C1Y exhibits exceptional sensitivity, allowing it to receive weak signals even in challenging reception conditions.

2. Integrated AGC

The Automatic Gain Control (AGC) feature ensures consistent signal strength by automatically adjusting the gain based on the received signal level.

3. Low Noise Figure

With a low noise figure, TDA18267HB/C1Y minimizes signal degradation and preserves the quality of received signals.

4. I2C Interface

The integrated I2C interface enables easy control and configuration of the IC, facilitating seamless integration into various system designs.

Advantages and Disadvantages

Advantages

• High sensitivity for improved signal reception
• Wide frequency range for versatile applications
• Low power consumption for energy-efficient operation
• Compact package for space-constrained designs
• Easy integration due to standardized pin configuration

Disadvantages

• Limited compatibility with older analog television systems
• Relatively higher cost compared to some alternative models

Working Principles

TDA18267HB/C1Y operates based on advanced semiconductor technology, utilizing a combination of amplification, filtering, and modulation techniques. It receives the RF signal through the RFIN pin, amplifies it, and converts it to an intermediate frequency (IF) signal. The IFOUT pin provides the processed signal for further demodulation and decoding stages.

Detailed Application Field Plans

TDA18267HB/C1Y finds extensive application in various digital television receivers, including set-top boxes, televisions, and digital video recorders (DVRs). Its high sensitivity and wide frequency range make it suitable for both terrestrial and satellite TV reception.

Detailed and Complete Alternative Models

• TDA18272HB/C1Y: Similar to TDA18267HB/C1Y but with extended frequency range up to 2150 MHz.
• TDA18250HN/C1Y: Designed for cable TV applications with a frequency range of 48 MHz to 1002 MHz.
• TDA18218HN/C1Y: Optimized for digital radio applications, offering excellent performance in the FM band.

These alternative models provide similar functionality to TDA18267HB/C1Y while catering to specific application requirements.

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