LM4840LQ/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Power Amplifier
• Characteristics: High-performance, low-power stereo audio amplifier
• Package: 48-pin LQFP (Lead Quad Flat Package)
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 1.1W per channel into 8Ω load at 5V supply
• Total Harmonic Distortion + Noise: 0.1% (typical) at 1kHz, 1W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4840LQ/NOPB has a total of 48 pins. Here is the detailed pin configuration:

1. OUT1N: Negative terminal of Channel 1 output
2. OUT1P: Positive terminal of Channel 1 output
3. VDD: Positive power supply voltage
4. GND: Ground reference
5. IN1N: Negative terminal of Channel 1 input
6. IN1P: Positive terminal of Channel 1 input
7. BYPASS: Bypass capacitor connection for internal bias network
8. SHUTDOWN: Shutdown control input
9. OUT2N: Negative terminal of Channel 2 output
10. OUT2P: Positive terminal of Channel 2 output
11. IN2N: Negative terminal of Channel 2 input
12. IN2P: Positive terminal of Channel 2 input
13. VDD: Positive power supply voltage
14. GND: Ground reference
15. OUT3N: Negative terminal of Channel 3 output
16. OUT3P: Positive terminal of Channel 3 output
17. IN3N: Negative terminal of Channel 3 input
18. IN3P: Positive terminal of Channel 3 input
19. BYPASS: Bypass capacitor connection for internal bias network
20. SHUTDOWN: Shutdown control input
21. OUT4N: Negative terminal of Channel 4 output
22. OUT4P: Positive terminal of Channel 4 output
23. IN4N: Negative terminal of Channel 4 input
24. IN4P: Positive terminal of Channel 4 input
25. VDD: Positive power supply voltage
26. GND: Ground reference
27. OUT5N: Negative terminal of Channel 5 output
28. OUT5P: Positive terminal of Channel 5 output
29. IN5N: Negative terminal of Channel 5 input
30. IN5P: Positive terminal of Channel 5 input
31. BYPASS: Bypass capacitor connection for internal bias network
32. SHUTDOWN: Shutdown control input
33. OUT6N: Negative terminal of Channel 6 output
34. OUT6P: Positive terminal of Channel 6 output
35. IN6N: Negative terminal of Channel 6 input
36. IN6P: Positive terminal of Channel 6 input
37. VDD: Positive power supply voltage
38. GND: Ground reference
39. OUT7N: Negative terminal of Channel 7 output
40. OUT7P: Positive terminal of Channel 7 output
41. IN7N: Negative terminal of Channel 7 input
42. IN7P: Positive terminal of Channel 7 input
43. BYPASS: Bypass capacitor connection for internal bias network
44. SHUTDOWN: Shutdown control input
45. OUT8N: Negative terminal of Channel 8 output
46. OUT8P: Positive terminal of Channel 8 output
47. IN8N: Negative terminal of Channel 8 input
48. IN8P: Positive terminal of Channel 8 input

Functional Features

• High-quality audio amplification for stereo applications
• Low-power consumption, suitable for portable devices
• Wide power supply voltage range for flexibility
• Low total harmonic distortion and noise for clear audio reproduction
• Shutdown control for power-saving functionality

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Compact package size - Wide operating temperature range - Low shutdown current for power efficiency

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for proper operation

Working Principles

The LM4840LQ/NOPB is a stereo audio power amplifier that utilizes integrated circuit technology to amplify audio signals. It operates by receiving input signals from audio