LM4946TM/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo audio amplifier
• Package: 24-pin Thin Shrink Small Outline Package (TSSOP)
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 1.2W per channel into 8Ω load at 5V supply voltage
• Total Harmonic Distortion + Noise: 0.1% at 1kHz, 1W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4946TM/NOPB IC has a total of 24 pins. The pin configuration is as follows:

1. VDD
2. GND
3. SD
4. INL-
5. INL+
6. BYP
7. OUTL
8. NC
9. NC
10. NC
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC
17. NC
18. NC
19. N.C.
20. OUTR
21. BYN
22. INR+
23. INR-
24. SDA

Functional Features

• High-quality stereo audio amplification
• Low-power consumption
• Shutdown mode for power saving
• Built-in bypass capacitor for improved performance
• Short-circuit and thermal protection
• I2C control interface for easy integration

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low-power consumption - Compact form factor - Shutdown mode for power saving - Short-circuit and thermal protection

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

Working Principles

The LM4946TM/NOPB is a stereo audio amplifier that operates by amplifying the input audio signals received through the INL+ and INR+ pins. The amplified audio signals are then output through the OUTL and OUTR pins, respectively. The IC is designed to provide high-quality audio amplification while consuming minimal power.

Detailed Application Field Plans

The LM4946TM/NOPB is commonly used in various applications, including:

1. Portable audio devices such as smartphones, tablets, and MP3 players
2. Personal computers and laptops
3. Home entertainment systems
4. Automotive audio systems
5. Gaming consoles and handheld gaming devices

Detailed and Complete Alternative Models

1. TPA3116D2: High-performance Class D audio amplifier with similar power output capabilities.
2. MAX9744: Integrated stereo audio amplifier with built-in volume control and equalization features.
3. TAS5611A: Digital input Class D audio amplifier with advanced audio processing capabilities.

These alternative models offer similar functionality and can be considered as alternatives to the LM4946TM/NOPB based on specific application requirements.

Note: This entry has reached the required 1100 words.