TDA18260HN/C1,551

Product Overview

Category

The TDA18260HN/C1,551 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 TDA18260HN/C1,551 is a highly integrated IC that combines multiple functions required for TV signal reception.
• It supports various digital TV standards, including DVB-T/T2, ISDB-T, and DTMB.
• The IC offers excellent sensitivity and selectivity, ensuring reliable reception even in challenging signal environments.
• It features low power consumption, making it suitable for energy-efficient devices.
• The TDA18260HN/C1,551 is designed to operate within a wide temperature range, ensuring its reliability in different environmental conditions.

Package and Quantity

The TDA18260HN/C1,551 is available in a compact surface-mount package. It is typically supplied in reels or trays, with a quantity of 2500 units per reel.

Specifications

• Frequency Range: 42 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

Pin Configuration

The TDA18260HN/C1,551 has a total of 32 pins. The pin configuration is as follows:

Pin 1: RF_IN Pin 2: AGC_OUT Pin 3: AGC_IN Pin 4: XTAL Pin 5: GND Pin 6: VDD Pin 7: I2C_SCL Pin 8: I2C_SDA ...

Functional Features

• High sensitivity: The TDA18260HN/C1,551 offers excellent sensitivity, allowing it to receive weak TV signals effectively.
• Wide frequency range: It supports a broad frequency range from 42 MHz to 1002 MHz, covering various TV broadcast bands.
• Automatic Gain Control (AGC): The IC incorporates AGC functionality, ensuring consistent signal strength regardless of input variations.
• Low power consumption: With its low current consumption, the TDA18260HN/C1,551 helps minimize power usage in TV receivers and set-top boxes.
• Integrated filters: It includes built-in filters for noise reduction and interference rejection, enhancing signal quality.

Advantages and Disadvantages

Advantages

• High integration reduces the need for additional external components.
• Excellent sensitivity ensures reliable reception even in challenging signal environments.
• Wide frequency range supports multiple TV standards.
• Low power consumption contributes to energy-efficient devices.

Disadvantages

• Limited availability of alternative models may restrict design flexibility.
• Complex pin configuration requires careful PCB layout considerations.

Working Principles

The TDA18260HN/C1,551 operates based on the superheterodyne principle. It receives RF signals through the RF_IN pin and amplifies them using an internal low-noise amplifier (LNA). The amplified signal is then mixed with a local oscillator frequency to produce an intermediate frequency (IF) signal. This IF signal is further processed and demodulated to extract the digital TV information.

Application Field Plans

The TDA18260HN/C1,551 is widely used in various television applications, including: - Digital TV receivers - Set-top boxes - Television tuner modules

Alternative Models

While the TDA18260HN/C1,551 is a highly capable IC, there are alternative models available in the market that offer similar functionality. Some notable alternatives include: - TDA18272HN/C1,551 - TDA18250HN/C1,551 - TDA18219HN/C1,551

These alternative models can be considered based on specific design requirements and availability.

In conclusion, the TDA18260HN/C1,551 is a highly integrated IC designed for television applications. With its excellent sensitivity, wide frequency range, and low power consumption, it offers reliable reception and efficient signal processing. While it has some limitations in terms of alternative models and pin configuration complexity, it remains a popular choice for digital TV receivers and set-top boxes.