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規格
| 屬性 | 價值 |
| Manufacturer | ZHONGKEWEI |
| Package | TSSOP-28-EP |
概述
Description
The AT7456E is an On-Screen Display (OSD) IC commonly used in various video applications. It allows users to overlay text and graphics onto a video stream, making it ideal for uses such as flight controllers in drones or other video systems requiring real-time data display. The chip supports multiple character sizes and fonts, enabling customizable and clear information overlays.
The AT7456E interfaces easily with a microcontroller via a serial connection, typically using SPI, which allows for integration into a variety of systems. It operates with both NTSC and PAL video formats, making it versatile for different regions and display types. The chip includes built-in RAM for storing display data and can handle dynamic updates to the on-screen content.
This IC is popular in hobbyist and professional projects due to its ease of use, flexibility, and ability to enhance video systems with critical data such as flight parameters, status alerts, or custom graphics. Its functionality streamlines the process of adding OSD capabilities to video applications, reducing development time and complexity.
The AT7456E interfaces easily with a microcontroller via a serial connection, typically using SPI, which allows for integration into a variety of systems. It operates with both NTSC and PAL video formats, making it versatile for different regions and display types. The chip includes built-in RAM for storing display data and can handle dynamic updates to the on-screen content.
This IC is popular in hobbyist and professional projects due to its ease of use, flexibility, and ability to enhance video systems with critical data such as flight parameters, status alerts, or custom graphics. Its functionality streamlines the process of adding OSD capabilities to video applications, reducing development time and complexity.
Equivalent
The AT7456E is an on-screen display (OSD) chip commonly used in FPV (First Person View) systems. Equivalent products include the MAX7456, which is another popular OSD chip with similar functionality. Both chips are used for overlaying text and graphics on video feeds. Other alternatives might include custom or programmable OSD solutions based on microcontrollers or FPGAs, but the MAX7456 is the most direct equivalent in terms of specific features and applications.
Features
The AT7456E is a comprehensive on-screen display (OSD) module typically used in applications like drones and other video systems. Key features include:
1. Character Generator: It comes with a built-in character generator ROM with 256 pre-defined characters, allowing for the display of various symbols and text on a video feed.
2. Display Flexibility: Supports a maximum of 16 rows of 30 characters, making it versatile for different display needs.
3. Voltage Operation: Operates at a low voltage range of 4.5V to 5.5V, making it suitable for battery-powered devices.
4. Interface: Often uses an SPI interface which enables easy integration with microcontrollers.
5. Programmability: Users can customize the display by programming it to show specific data, such as telemetry information in real-time.
6. NTSC/PAL Compatibility: It is compatible with both NTSC and PAL video formats, ensuring broad applicability.
7. Power Efficiency: Designed to consume low power, which is beneficial for portable applications.
These features make the AT7456E an efficient choice for enhancing video systems with real-time data display capabilities.
1. Character Generator: It comes with a built-in character generator ROM with 256 pre-defined characters, allowing for the display of various symbols and text on a video feed.
2. Display Flexibility: Supports a maximum of 16 rows of 30 characters, making it versatile for different display needs.
3. Voltage Operation: Operates at a low voltage range of 4.5V to 5.5V, making it suitable for battery-powered devices.
4. Interface: Often uses an SPI interface which enables easy integration with microcontrollers.
5. Programmability: Users can customize the display by programming it to show specific data, such as telemetry information in real-time.
6. NTSC/PAL Compatibility: It is compatible with both NTSC and PAL video formats, ensuring broad applicability.
7. Power Efficiency: Designed to consume low power, which is beneficial for portable applications.
These features make the AT7456E an efficient choice for enhancing video systems with real-time data display capabilities.
Pinout
The AT7456E is a single-chip On-Screen Display (OSD) processor designed for video applications. It typically comes in a 24-pin package. The main functions of the AT7456E include generating characters and symbols overlaid on a video signal, often used in applications like drone video systems, surveillance, and broadcast equipment.
Key pin functions include:
1. Video In/Out: For integrating the OSD with a video signal.
2. SPI Interface: Commonly used for communication with a microcontroller.
3. Power Supply: Pins for VCC and GND to power the chip.
4. External Crystal Oscillator: Used for clocking purposes.
5. Reset: To reset the device.
The exact pin functions may vary depending on the package and specific configuration, so it's important to consult the datasheet for detailed information.
Key pin functions include:
1. Video In/Out: For integrating the OSD with a video signal.
2. SPI Interface: Commonly used for communication with a microcontroller.
3. Power Supply: Pins for VCC and GND to power the chip.
4. External Crystal Oscillator: Used for clocking purposes.
5. Reset: To reset the device.
The exact pin functions may vary depending on the package and specific configuration, so it's important to consult the datasheet for detailed information.
Manufacturer
The AT7456E is manufactured by Aten Technology, Inc., commonly known as ATEN. ATEN is a company that specializes in connectivity and management solutions. Founded in 1979 and headquartered in Taiwan, ATEN provides a wide range of products including KVM switches, AV solutions, USB peripherals, and data center management solutions. The company is known for its innovation in producing hardware that enables the sharing and management of information across multiple devices and platforms, catering to both enterprise and consumer markets. Their solutions are used in various sectors such as IT, education, healthcare, and more.
Application
The AT7456E is an On-Screen Display (OSD) integrated circuit commonly used in various applications requiring video overlay capabilities. Its primary application areas include:
1. FPV Systems: Used in drones and remote-controlled aircraft to display telemetry data such as speed, altitude, and battery status directly on the video feed.
2. Security Cameras: Enhances surveillance video with time stamps, camera IDs, or other relevant information.
3. Broadcast Video Equipment: Adds graphics or text to live video feeds, useful in television broadcasting for displaying news tickers or sporting event scores.
4. Industrial Monitoring: Enables the display of metrics and alerts over video feeds in industrial settings.
5. Consumer Electronics: Used in devices like video recorders or gaming consoles for menu displays and notifications.
1. FPV Systems: Used in drones and remote-controlled aircraft to display telemetry data such as speed, altitude, and battery status directly on the video feed.
2. Security Cameras: Enhances surveillance video with time stamps, camera IDs, or other relevant information.
3. Broadcast Video Equipment: Adds graphics or text to live video feeds, useful in television broadcasting for displaying news tickers or sporting event scores.
4. Industrial Monitoring: Enables the display of metrics and alerts over video feeds in industrial settings.
5. Consumer Electronics: Used in devices like video recorders or gaming consoles for menu displays and notifications.
Package
The AT7456E is typically available in a DIP (Dual In-line Package) or SOP (Small Outline Package) format. These packaging types are common for integrated circuits, providing different mounting options for various applications.