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LM4922TLX/NOPB
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LM4922TLX/NOPB

Product Overview

Category

LM4922TLX/NOPB belongs to the category of audio amplifiers.

Use

It is used for amplifying audio signals in various electronic devices such as smartphones, tablets, and portable media players.

Characteristics

  • High-quality audio amplification
  • Low power consumption
  • Small form factor
  • Integrated protection features

Package

The LM4922TLX/NOPB comes in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of LM4922TLX/NOPB lies in its ability to provide high-fidelity audio amplification while consuming minimal power.

Packaging/Quantity

The LM4922TLX/NOPB is typically packaged in reels and is available in quantities suitable for mass production.

Specifications

  • Power Supply Range: 2.7V to 5.5V
  • Output Power: 1.25W per channel into 8Ω at 5V
  • Total Harmonic Distortion + Noise (THD+N): 0.1% (typical) at 1kHz, 1.25W, 8Ω
  • Shutdown Current: 0.01μA (typical)
  • Package Type: Small Outline Package (SOP)

Detailed Pin Configuration

The detailed pin configuration of LM4922TLX/NOPB includes input pins, output pins, power supply pins, and control pins. Refer to the datasheet for the complete pinout diagram.

Functional Features

  • Integrated volume control
  • Short-circuit and thermal protection
  • Low quiescent current
  • Differential inputs for noise rejection

Advantages and Disadvantages

Advantages

  • High-quality audio amplification
  • Low power consumption
  • Integrated protection features
  • Small form factor

Disadvantages

  • Limited output power compared to higher wattage amplifiers
  • Requires external components for certain configurations

Working Principles

The LM4922TLX/NOPB operates by receiving audio input signals and amplifying them using an internal amplifier circuit. It utilizes low power while delivering high-quality audio output.

Detailed Application Field Plans

LM4922TLX/NOPB finds applications in: - Portable electronic devices - Mobile phones - Tablets - Portable media players - Wearable devices

Detailed and Complete Alternative Models

Some alternative models to LM4922TLX/NOPB include: - LM4863 - TPA2012 - MAX98306

In conclusion, LM4922TLX/NOPB is a versatile audio amplifier designed for portable electronic devices, offering high-quality audio amplification with minimal power consumption.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM4922TLX/NOPB v technických řešeních

  1. What is the typical application of LM4922TLX/NOPB?

    • The LM4922TLX/NOPB is commonly used as a mono, bridge-tied load (BTL) audio amplifier in portable devices such as smartphones and tablets.

  2. What is the maximum power output of LM4922TLX/NOPB?

    • The LM4922TLX/NOPB can deliver up to 1.35W of continuous average power into an 8Ω BTL load with 1% THD+N.

  3. How does LM4922TLX/NOPB handle power supply voltage fluctuations?

    • The LM4922TLX/NOPB has built-in protection features to handle power supply voltage fluctuations, ensuring reliable performance.

  4. Can LM4922TLX/NOPB operate from a single supply voltage?

    • Yes, the LM4922TLX/NOPB can operate from a single supply voltage, making it suitable for battery-powered applications.

  5. What are the key features of LM4922TLX/NOPB?

    • The key features of LM4922TLX/NOPB include low quiescent current, shutdown mode, thermal shutdown protection, and short-circuit protection.

  6. Is LM4922TLX/NOPB suitable for driving headphones?

    • Yes, the LM4922TLX/NOPB is suitable for driving small speakers or headphones in portable audio applications.

  7. Does LM4922TLX/NOPB require external compensation components?

    • No, the LM4922TLX/NOPB does not require external compensation components, simplifying the design process.

  8. What is the recommended operating temperature range for LM4922TLX/NOPB?

    • The LM4922TLX/NOPB is designed to operate over a temperature range of -40°C to 85°C, making it suitable for various environmental conditions.

  9. Can LM4922TLX/NOPB be used in conjunction with other audio processing ICs?

    • Yes, the LM4922TLX/NOPB can be integrated into systems with other audio processing ICs to enhance overall audio performance.

  10. Are there any application notes or reference designs available for LM4922TLX/NOPB?

    • Yes, Texas Instruments provides application notes and reference designs to assist engineers in implementing LM4922TLX/NOPB in their technical solutions.