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LM4906LDX
Product Overview
Category: Integrated Circuit (IC)
Use: Audio Power Amplifier
Characteristics: - Single supply voltage: 2.7V to 5.5V - Output power: 1.1W (typical) at 5V, 10% THD+N, 8Ω load - Low quiescent current: 4mA (typical) - Shutdown current: 0.01μA (typical) - Package: 8-Lead LLP (Leadless Leadframe Package) - Essence: High-performance audio amplifier with low power consumption - Packaging/Quantity: Tape and Reel, 3000 units per reel
Specifications
- Supply Voltage Range: 2.7V to 5.5V
- Quiescent Current: 4mA (typical)
- Shutdown Current: 0.01μA (typical)
- Output Power: 1.1W (typical) at 5V, 10% THD+N, 8Ω load
- Total Harmonic Distortion + Noise (THD+N): 0.1% (typical) at 1kHz, 1.1W, 8Ω load
- Signal-to-Noise Ratio (SNR): 90dB (typical) at 1kHz, 1.1W, 8Ω load
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The LM4906LDX has the following pin configuration:
```
| | --| VDD GND|-- --| INP SHDN|-- --| INN OUT|-- |___________| ```
Functional Features
- Low quiescent current for power efficiency
- Shutdown mode for ultra-low power consumption
- High output power capability for driving speakers
- Wide supply voltage range for flexibility in various applications
- Low total harmonic distortion and noise for high-quality audio reproduction
Advantages
- Low power consumption
- Small package size
- High output power
- Wide operating temperature range
- Good audio quality
Disadvantages
- Limited output power compared to higher wattage amplifiers
- Requires an external power supply
Working Principles
The LM4906LDX is a class AB audio power amplifier that operates on a single supply voltage. It amplifies the input audio signal and drives a speaker or headphones. The amplifier has low quiescent current, allowing it to operate efficiently even at low power levels. It also features a shutdown mode, which reduces the power consumption to an extremely low level when not in use.
Detailed Application Field Plans
The LM4906LDX can be used in various audio applications, including: 1. Portable audio devices such as MP3 players and smartphones 2. Personal computers and laptops 3. Home audio systems 4. Automotive audio systems 5. Gaming consoles 6. Televisions and multimedia devices
Alternative Models
Some alternative models to LM4906LDX are: 1. LM4863: Dual 2.2W Audio Power Amplifier 2. LM386: Low Voltage Audio Power Amplifier 3. TPA3110D2: 15-W Stereo Class-D Audio Power Amplifier 4. MAX9744: 20W Stereo Class D Audio Power Amplifier
These alternative models offer different features and specifications, providing options for various application requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM4906LDX v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LM4906LDX in technical solutions:
Q: What is LM4906LDX? A: LM4906LDX is a low-power audio amplifier IC designed for use in various audio applications.
Q: What is the maximum power output of LM4906LDX? A: The maximum power output of LM4906LDX is typically around 1.1 Watts into an 8-ohm load.
Q: Can LM4906LDX be used in battery-powered devices? A: Yes, LM4906LDX is suitable for battery-powered devices as it operates at low power and has a wide supply voltage range.
Q: What is the input voltage range for LM4906LDX? A: The input voltage range for LM4906LDX is typically between 2.7V and 5.5V.
Q: Is LM4906LDX suitable for headphone amplification? A: Yes, LM4906LDX can be used for driving headphones as it has a built-in headphone driver circuitry.
Q: Does LM4906LDX require external components for operation? A: Yes, LM4906LDX requires a few external components such as capacitors, resistors, and input/output coupling capacitors for proper operation.
Q: Can LM4906LDX operate in stereo mode? A: Yes, LM4906LDX can be configured to operate in stereo mode by using two ICs and appropriate circuitry.
Q: What is the typical total harmonic distortion (THD) of LM4906LDX? A: The typical THD of LM4906LDX is around 0.2% at 1kHz and 1W output power.
Q: Can LM4906LDX be used in automotive audio systems? A: Yes, LM4906LDX can be used in automotive audio systems as it is designed to operate over a wide temperature range and has built-in protection features.
Q: Are there any application notes or reference designs available for LM4906LDX? A: Yes, the manufacturer of LM4906LDX provides application notes and reference designs that can help in implementing the IC in various technical solutions.
Please note that the answers provided here are general and may vary depending on specific design considerations and requirements. It is always recommended to refer to the LM4906LDX datasheet and consult with the manufacturer for detailed information and application-specific guidance.