TPA122DGNG4

Product Overview

Category

TPA122DGNG4 belongs to the category of integrated audio amplifiers.

Use

It is primarily used for audio amplification in various electronic devices such as smartphones, tablets, laptops, and portable audio players.

Characteristics

• High-quality audio amplification
• Compact size
• Low power consumption
• Wide input voltage range
• Excellent signal-to-noise ratio
• Thermal and short-circuit protection

Package

The TPA122DGNG4 comes in a small outline package (SOP) with 8 pins.

Essence

The essence of TPA122DGNG4 lies in its ability to provide high-quality audio amplification while maintaining a compact form factor and low power consumption.

Packaging/Quantity

The TPA122DGNG4 is typically packaged in reels or tubes, with each reel/tube containing a specific quantity of the product. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Supply Voltage: 2.5V to 5.5V
• Output Power: Up to 1.2W
• Total Harmonic Distortion (THD+N): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The TPA122DGNG4 has the following pin configuration:

1. VDD: Power supply voltage input
2. GND: Ground reference
3. IN+: Positive audio input
4. IN-: Negative audio input
5. SHUTDOWN: Shutdown control input
6. BYPASS: Bypass capacitor connection
7. OUT: Audio output
8. VREF: Reference voltage output

Functional Features

• High gain audio amplification
• Shutdown mode for power saving
• Bypass capacitor for improved audio quality
• Reference voltage output for external circuitry

Advantages and Disadvantages

Advantages

• High-quality audio amplification
• Compact size suitable for portable devices
• Low power consumption for extended battery life
• Wide input voltage range for compatibility with various audio sources
• Thermal and short-circuit protection for enhanced reliability

Disadvantages

• Limited output power compared to higher wattage amplifiers
• May require additional external components for optimal performance

Working Principles

The TPA122DGNG4 operates on the principle of amplifying the audio signal received at the input pins (IN+ and IN-) and delivering a higher power output through the OUT pin. It utilizes internal circuitry to amplify and shape the audio signal while maintaining low distortion and high fidelity.

Detailed Application Field Plans

The TPA122DGNG4 finds applications in various electronic devices where audio amplification is required. Some potential application fields include:

1. Mobile phones and smartphones
2. Tablets and laptops
3. Portable audio players and MP3 players
4. Bluetooth speakers and wireless headphones
5. Gaming consoles and handheld gaming devices

Detailed and Complete Alternative Models

1. TPA3116D2: A higher-power audio amplifier with up to 50W output.
2. LM386: A popular low-power audio amplifier suitable for small-scale applications.
3. MAX9744: An integrated audio amplifier with advanced digital signal processing features.

These alternative models offer different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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