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LM4863LQ/NOPB
Product Overview
Category
LM4863LQ/NOPB belongs to the category of audio power amplifiers.
Use
It is primarily used for amplifying audio signals in various electronic devices such as portable speakers, headphones, and multimedia systems.
Characteristics
- High-quality audio amplification
- Low power consumption
- Compact size
- Wide voltage range operation
- Thermal shutdown protection
Package
LM4863LQ/NOPB is available in a small outline package (SOP) with 16 pins.
Essence
The essence of LM4863LQ/NOPB lies in its ability to provide efficient and high-quality audio amplification while consuming minimal power.
Packaging/Quantity
This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.
Specifications
- Supply Voltage: 2.7V to 5.5V
- Output Power: 1.1W per channel (8Ω load, 5V supply)
- Total Harmonic Distortion (THD): 0.1% (1W, 1kHz)
- Signal-to-Noise Ratio (SNR): 95dB (A-weighted)
- Shutdown Current: 0.6μA (typical)
Detailed Pin Configuration
- VDD: Positive power supply
- SD: Shutdown control input
- IN1-: Negative input terminal for Channel 1
- IN1+: Positive input terminal for Channel 1
- GND: Ground
- OUT1: Output terminal for Channel 1
- PVDD: Positive power supply for output stage
- VDD: Positive power supply
- IN2-: Negative input terminal for Channel 2
- IN2+: Positive input terminal for Channel 2
- GND: Ground
- OUT2: Output terminal for Channel 2
- BYP: Bypass capacitor connection
- BP: Bypass pin
- VDD: Positive power supply
- VSS: Negative power supply
Functional Features
- Dual-channel audio amplification
- Built-in thermal shutdown protection
- Short-circuit and over-temperature protection
- Low quiescent current
- Pop and click suppression during power-on/off transitions
Advantages and Disadvantages
Advantages
- High-quality audio amplification
- Low power consumption
- Compact size
- Protection features ensure device longevity
- Minimal pop and click noise during power transitions
Disadvantages
- Limited output power compared to higher wattage amplifiers
- Not suitable for high-power audio applications
Working Principles
LM4863LQ/NOPB operates on the principle of amplifying low-level audio signals using a class AB amplifier configuration. It utilizes a bridge-tied load (BTL) architecture to provide increased output power while maintaining low distortion levels. The internal circuitry ensures efficient power utilization and protects the device from thermal and short-circuit damage.
Detailed Application Field Plans
LM4863LQ/NOPB finds applications in various electronic devices, including: 1. Portable speakers 2. Headphones 3. Multimedia systems 4. Personal audio devices 5. Gaming consoles
Detailed and Complete Alternative Models
- LM4861: Single-channel audio power amplifier
- LM4862: Dual-channel audio power amplifier with higher output power
- LM4864: Dual-channel audio power amplifier with integrated volume control
These alternative models offer different features and specifications to cater to specific application requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM4863LQ/NOPB v technických řešeních
Q: What is the LM4863LQ/NOPB? A: The LM4863LQ/NOPB is a dual audio power amplifier designed for use in portable electronic devices.
Q: What is the maximum output power of the LM4863LQ/NOPB? A: The LM4863LQ/NOPB can deliver up to 750mW per channel into an 8Ω load.
Q: What is the supply voltage range for the LM4863LQ/NOPB? A: The LM4863LQ/NOPB operates from a supply voltage range of 2.7V to 5.5V.
Q: Can the LM4863LQ/NOPB be used in battery-powered devices? A: Yes, the LM4863LQ/NOPB's low supply voltage requirement makes it suitable for battery-powered applications.
Q: What is the typical application circuit for the LM4863LQ/NOPB? A: The typical application circuit includes input coupling capacitors, volume control, and output coupling capacitors.
Q: Is the LM4863LQ/NOPB suitable for driving headphones? A: Yes, the LM4863LQ/NOPB can drive stereo headphones with ease.
Q: What is the thermal shutdown feature of the LM4863LQ/NOPB? A: The LM4863LQ/NOPB includes a thermal shutdown feature to protect the device from overheating.
Q: Can the LM4863LQ/NOPB be used in automotive audio systems? A: Yes, the LM4863LQ/NOPB is suitable for use in automotive audio systems.
Q: Does the LM4863LQ/NOPB require external compensation? A: No, the LM4863LQ/NOPB is internally compensated for stability.
Q: What are the key features of the LM4863LQ/NOPB? A: The key features include low quiescent current, unity-gain stable, and short-circuit protection.