AD7879WACPZ-R5

Product Overview

Category

The AD7879WACPZ-R5 belongs to the category of integrated circuits (ICs) specifically designed for touch screen applications.

Use

This product is primarily used in touch screen devices, such as smartphones, tablets, and other consumer electronics. It enables accurate and responsive touch input functionality.

Characteristics

• High precision: The AD7879WACPZ-R5 offers precise touch sensing capabilities, ensuring accurate tracking of user input.
• Low power consumption: This IC is designed to minimize power consumption, making it suitable for battery-powered devices.
• Compact package: The AD7879WACPZ-R5 comes in a small form factor package, allowing for easy integration into various device designs.
• Robust performance: It provides reliable touch detection even in challenging environmental conditions, such as high humidity or extreme temperatures.

Package and Quantity

The AD7879WACPZ-R5 is available in a compact wafer chip scale package (WLCSP). Each package contains one unit of the IC.

Specifications

• Supply voltage: 2.6V to 3.6V
• Operating temperature range: -40°C to +85°C
• Resolution: Up to 12-bit
• Communication interface: I2C
• Touch panel size support: Up to 10 inches
• Sampling rate: Up to 125 Hz

Pin Configuration

The AD7879WACPZ-R5 features the following pin configuration:

1. VDD: Power supply voltage
2. GND: Ground reference
3. SDA: Serial data line (I2C)
4. SCL: Serial clock line (I2C)
5. IRQ: Interrupt request output
6. PENIRQ: Pen interrupt request output
7. X+ and X-: Touch panel X-axis connections
8. Y+ and Y-: Touch panel Y-axis connections

Functional Features

• Multi-touch support: The AD7879WACPZ-R5 can detect and track multiple touch points simultaneously, enabling advanced touch gestures.
• Noise filtering: It incorporates advanced algorithms to filter out noise and provide accurate touch detection even in noisy environments.
• Gesture recognition: This IC is capable of recognizing various touch gestures, such as swiping, pinching, and rotating, enhancing user interaction.
• Low latency: The AD7879WACPZ-R5 offers low latency touch response, ensuring a smooth and responsive user experience.

Advantages and Disadvantages

Advantages

• High precision touch sensing
• Low power consumption
• Compact package size
• Robust performance in challenging conditions
• Multi-touch and gesture recognition capabilities

Disadvantages

• Limited touch panel size support (up to 10 inches)
• Requires an I2C interface for communication

Working Principles

The AD7879WACPZ-R5 utilizes capacitive touch sensing technology to detect and track user input. It measures changes in capacitance caused by the presence of a conductive object, such as a finger, on the touch panel. By analyzing these changes, it determines the position and characteristics of the touch input.

Application Field Plans

The AD7879WACPZ-R5 is widely used in various touch screen applications, including: 1. Smartphones and tablets 2. Portable gaming devices 3. Automotive infotainment systems 4. Industrial control panels 5. Medical equipment interfaces

Alternative Models

1. AD7879ACPZ-R7: Similar to AD7879WACPZ-R5 but with a different package option (LFCSP).
2. AD7879WACPZ-R2: An earlier version of AD7879WACPZ-R5 with slightly different specifications.
3. AD7879-1ACPZ-R7: A variant with enhanced noise immunity and extended temperature range.

These alternative models offer similar touch sensing capabilities but may differ in package options, specifications, or additional features.

In conclusion, the AD7879WACPZ-R5 is a high-performance touch screen IC that provides accurate touch sensing for various applications. Its compact size, low power consumption, and robust performance make it an ideal choice for designers seeking reliable touch input functionality.