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X9421YV14I
Product Overview
- Category: Integrated Circuit (IC)
- Use: Digital Potentiometer
- Characteristics: Programmable, Non-volatile, 14-bit resolution
- Package: Small Outline Integrated Circuit (SOIC)
- Essence: Provides digital control of resistance in electronic circuits
- Packaging/Quantity: Available in reels of 2500 units
Specifications
- Resolution: 14 bits
- Resistance Range: 0 to 100 kilo-ohms
- Supply Voltage: 2.7V to 5.5V
- Interface: I2C (Inter-Integrated Circuit) compatible
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
The X9421YV14I IC has the following pin configuration:
- VCC: Supply voltage input
- SDA: Serial Data line for I2C communication
- SCL: Serial Clock line for I2C communication
- A0: Address bit 0 for device addressing
- A1: Address bit 1 for device addressing
- WP: Write Protect pin for protecting non-volatile memory
- H/L: High/Low logic level selection pin
- GND: Ground reference
Functional Features
- Programmable resistance allows precise control over circuit characteristics
- Non-volatile memory retains resistance settings even when power is disconnected
- High resolution (14 bits) provides fine-grained adjustment capability
- I2C interface enables easy integration with microcontrollers and other devices
- Write Protect pin ensures data integrity by preventing accidental changes
Advantages and Disadvantages
Advantages: - Precise resistance control for accurate circuit tuning - Non-volatile memory eliminates the need for reprogramming on power-up - High resolution allows for fine adjustments in circuit behavior - Easy integration with microcontrollers and other devices
Disadvantages: - Limited resistance range (0 to 100 kilo-ohms) - Requires I2C-compatible interface for communication
Working Principles
The X9421YV14I is a digital potentiometer that replaces traditional mechanical potentiometers. It consists of a resistive element and electronic switches controlled by an internal digital-to-analog converter (DAC). The resistance value can be programmed digitally using the I2C interface, allowing precise control over the circuit characteristics. The non-volatile memory ensures that the resistance setting is retained even when power is disconnected.
Detailed Application Field Plans
The X9421YV14I finds applications in various fields, including:
- Audio Equipment: Precise volume control in amplifiers, mixers, and audio processors.
- Industrial Automation: Fine-tuning of process parameters in control systems.
- Test and Measurement Instruments: Calibration and adjustment of instrument circuits.
- Automotive Electronics: Control of lighting intensity, motor speed, and sensor calibration.
- Consumer Electronics: Digital control of brightness, contrast, and color settings in displays.
Detailed and Complete Alternative Models
- X9421YV14IZ-2.7: Same specifications, but operates at a supply voltage of 2.7V.
- X9421YV14IZ-5.0: Same specifications, but operates at a supply voltage of 5.0V.
- X9421YV14IZ-10: Same specifications, but offers a wider resistance range of 0 to 10 kilo-ohms.
These alternative models provide flexibility in choosing the appropriate version based on specific application requirements.
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