TDA18264HB/C1Y

Product Overview

Category

TDA18264HB/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: The TDA18264HB/C1Y offers excellent sensitivity, allowing it to receive weak signals even in areas with poor reception.
• Low noise figure: With a low noise figure, this IC ensures minimal interference and distortion during signal reception.
• Wide frequency range: The TDA18264HB/C1Y supports a wide frequency range, enabling it to receive various television and radio signals.
• Compact package: This IC is available in a compact package, making it suitable for space-constrained applications.
• Easy integration: The TDA18264HB/C1Y can be easily integrated into existing television receiver designs, simplifying the manufacturing process.

Package and Quantity

The TDA18264HB/C1Y is typically packaged in a small outline package (SOP) or a quad flat no-leads (QFN) package. It is commonly supplied in reels or trays, with quantities varying based on customer requirements.

Specifications

• Frequency range: 48 MHz to 1002 MHz
• Supply voltage: 3.3 V
• Current consumption: 60 mA
• Noise figure: < 4 dB
• Gain control range: -20 dB to +20 dB
• Operating temperature range: -40°C to +85°C

Pin Configuration

The TDA18264HB/C1Y features a total of 24 pins, each serving a specific function. The detailed pin configuration is as follows:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VCC | Power supply voltage | | 2 | GND | Ground | | 3 | AGC | Automatic Gain Control | | 4 | IFOUT | Intermediate Frequency Output | | 5 | VIFIN | Video Intermediate Frequency Input | | 6 | XTAL | Crystal oscillator input | | 7-10 | NC | No connection | | 11 | SDA | Serial Data Input/Output | | 12 | SCL | Serial Clock Input | | 13-15 | NC | No connection | | 16 | VIFOUT | Video Intermediate Frequency Output | | 17 | RFIN | Radio Frequency Input | | 18-24 | NC | No connection |

Functional Features

The TDA18264HB/C1Y offers several functional features that enhance its performance in television receivers:

1. Automatic Gain Control (AGC): The AGC circuitry ensures consistent signal strength by automatically adjusting the gain based on the received signal level.
2. Intermediate Frequency (IF) Output: The IF_OUT pin provides the demodulated intermediate frequency signal for further processing in the receiver.
3. Video Intermediate Frequency (VIF) Input and Output: These pins handle the video intermediate frequency signals, allowing seamless integration with video processing circuits.
4. Serial Data Interface: The SDA and SCL pins enable communication with external devices, facilitating control and configuration of the IC.

Advantages and Disadvantages

Advantages

• High sensitivity enables reception of weak signals.
• Low noise figure ensures minimal interference and distortion.
• Wide frequency range supports various television and radio signals.
• Compact package allows for space-efficient designs.
• Easy integration simplifies manufacturing processes.

Disadvantages

• Limited operating temperature range (-40°C to +85°C).
• Requires external crystal oscillator for proper operation.

Working Principles

The TDA18264HB/C1Y operates based on the superheterodyne principle. It receives the radio frequency (RF) signal through the RFIN pin and downconverts it to an intermediate frequency (IF) signal using a mixer and local oscillator. The IF signal is then demodulated and outputted through the IFOUT pin for further processing in the television receiver.

Application Field Plans

The TDA18264HB/C1Y is widely used in various digital television receivers, including set-top boxes, televisions, and digital video recorders. Its high sensitivity and low noise figure make it suitable for both terrestrial and satellite TV reception.

Alternative Models

For those seeking alternative options, the following models provide similar functionality to the TDA18264HB/C1Y:

1. TDA18272AB/C1Y
2. TDA18250HN/C1Y
3. TDA18218HN/C1Y

These alternative models offer comparable specifications and can be considered as substitutes for the TDA18264HB/C1Y in television receiver applications