LM4835MTX/HALF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo audio amplifier
• Package: Surface Mount Technology (SMT)
• Essence: Provides amplification and control for audio signals in various applications
• Packaging/Quantity: Tape and Reel packaging, 2500 units per reel

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: 1.3W per channel into 8Ω load at 5V supply
• Total Harmonic Distortion + Noise: 0.1% at 1kHz, 1.2W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4835MTX/HALF package consists of 20 pins, each serving a specific function:

1. VDD: Power supply voltage input
2. SHUTDOWN: Shutdown control pin
3. GAIN1: Gain selection pin
4. GAIN0: Gain selection pin
5. BYPASS: Bypass capacitor connection pin
6. INL+: Left channel input positive pin
7. INL-: Left channel input negative pin
8. AGND: Analog ground pin
9. OUTL-: Left channel output negative pin
10. OUTL+: Left channel output positive pin
11. PVDD: Power supply voltage input for the power stage
12. PGND: Power ground pin for the power stage
13. OUTR+: Right channel output positive pin
14. OUTR-: Right channel output negative pin
15. INR-: Right channel input negative pin
16. INR+: Right channel input positive pin
17. VDD: Power supply voltage input
18. SD: Shutdown control pin
19. GAIN1: Gain selection pin
20. GAIN0: Gain selection pin

Functional Features

• High-quality audio amplification for stereo applications
• Low power consumption for extended battery life
• Wide operating voltage range for flexibility in various systems
• Shutdown mode for power-saving when not in use
• Gain selection pins for adjusting amplification levels
• Bypass capacitor connection for improved audio performance

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low power consumption - Flexible operating voltage range - Power-saving shutdown mode - Adjustable gain levels - Improved audio performance with bypass capacitor connection

Disadvantages: - Limited output power compared to higher wattage amplifiers - May require additional external components for specific applications

Working Principles

The LM4835MTX/HALF is a stereo audio amplifier IC that operates by receiving audio signals from the input pins (INL+ and INR+) and amplifying them to drive speakers or headphones connected to the output pins (OUTL+/OUTL- and OUTR+/OUTR-). The gain of the amplifier can be adjusted using the GAIN1 and GAIN0 pins, allowing for customization based on the application's requirements.

The IC operates within a specified power supply voltage range and provides high-quality audio amplification with low distortion and noise. It also features a shutdown mode, which reduces power consumption to minimal levels when the amplifier is not in use.

Detailed Application Field Plans

The LM4835MTX/HALF is suitable for a wide range of audio applications, including but not limited to:

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

Detailed and Complete Alternative Models

1. LM4863: Stereo audio amplifier with higher output power
2. LM386: Low voltage audio power amplifier
3. TPA3116D2: Class D audio amplifier with integrated digital input
4. MAX9744: 20W stereo class D audio power amplifier
5. TDA7297: Dual bridge audio amplifier with high output power

These alternative models offer different features, power levels, and package options to suit various audio amplification requirements.

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