LM4666SDX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance audio amplifier - Single supply operation - Low distortion and noise - Wide voltage range - Small package size

Package: SDIP (Shrink Dual In-Line Package)

Essence: The LM4666SDX/NOPB is a high-performance audio amplifier IC designed for use in various audio applications. It provides excellent sound quality with low distortion and noise.

Packaging/Quantity: The LM4666SDX/NOPB is available in a SDIP package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.2W per channel
• Total Harmonic Distortion + Noise (THD+N): 0.03% (typical)
• Signal-to-Noise Ratio (SNR): 95dB (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LM4666SDX/NOPB has a total of 16 pins, which are assigned specific functions as follows:

1. VDD: Positive power supply
2. GND: Ground
3. SHUTDOWN: Shutdown control input
4. BYPASS: Bypass capacitor connection
5. INL: Left channel input
6. INR: Right channel input
7. VOUTL: Left channel output
8. VOUTR: Right channel output
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Single supply operation simplifies circuit design
• Low distortion and noise ensure high-quality audio output
• Wide voltage range allows for flexibility in power supply selection
• Shutdown control feature for power-saving mode
• Bypass capacitor connection improves stability and performance

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low distortion and noise - Wide voltage range for flexibility - Small package size for space-constrained applications - Shutdown control for power-saving

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for complete audio system integration

Working Principles

The LM4666SDX/NOPB is a class AB audio amplifier that operates on a single supply voltage. It utilizes internal circuitry to amplify the input audio signals and provide amplified outputs to drive speakers or headphones. The amplifier ensures low distortion and noise, resulting in high-quality audio reproduction.

Detailed Application Field Plans

The LM4666SDX/NOPB can be used in various audio applications, including but not limited to: - Portable audio devices - Headphone amplifiers - Multimedia systems - Home theater systems - Automotive audio systems

Detailed and Complete Alternative Models

1. LM4863: Dual 2.2W Audio Amplifier
2. TPA3110D2: 15W Stereo Class D Audio Power Amplifier
3. MAX9744: 20W Stereo Class D Audio Power Amplifier
4. TDA7297: Dual Bridge Audio Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the LM4666SDX/NOPB based on specific requirements and application needs.

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