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LM4938MHX

LM4938MHX

Manufacturer No:

LM4938MHX

Manufacturer:

National Semiconductor

Description:

VOLUME CONTROL CIRCUIT, 2 CHANNE

Datasheet:

Datasheet

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LM4938MHX Specifications

  • Type
    Parameter
  • Package / Case
    28-TSSOP (0.173", 4.40mm Width) Exposed Pad
  • Supplier Device Package
    28-HTSSOP
  • Operating Temperature
    -20°C ~ 85°C (TA)
  • Mounting Type
    Surface Mount
  • Features
    -
  • Voltage - Supply
    2.7V ~ 5.5V
  • Max Output Power x Channels @ Load
    2.2W x 2 @ 3Ohm
  • Output Type
    2-Channel (Stereo) with Stereo Headphones
  • Type
    Class AB
  • Packaging
    Bulk
  • Product Status
    Active
  • Series
    Boomer®
The LM4938MHX is a highly integrated audio subsystem that combines a stereo audio codec, stereo headphone amplifier, and stereo Class D speaker amplifier in a single chip. It offers several advantages and can be applied in various scenarios:1. Integration: The LM4938MHX integrates multiple audio components into a single chip, reducing the overall system complexity and component count. This integration saves board space, simplifies design, and lowers system cost.2. High-quality audio: The chip provides high-quality audio performance with low noise and distortion. It supports a wide range of audio formats and sampling rates, ensuring accurate and clear audio reproduction.3. Power efficiency: The LM4938MHX incorporates a Class D speaker amplifier, which offers high power efficiency compared to traditional linear amplifiers. This efficiency helps in reducing power consumption and extending battery life in portable devices.4. Flexibility: The chip supports multiple audio inputs and outputs, allowing it to be used in various applications. It can handle stereo line inputs, microphone inputs, and stereo headphone outputs, making it suitable for devices like smartphones, tablets, portable media players, and gaming consoles.5. Advanced features: The LM4938MHX includes advanced features like automatic gain control (AGC), dynamic range control (DRC), and programmable filters. These features enhance audio performance, provide volume leveling, and enable customization according to specific application requirements.Application scenarios for LM4938MHX:1. Mobile devices: The chip is commonly used in smartphones, tablets, and portable media players to provide high-quality audio playback through headphones or built-in speakers. Its integration and power efficiency make it ideal for these battery-powered devices.2. Gaming consoles: The LM4938MHX can be used in gaming consoles to deliver immersive audio experiences. It can handle audio inputs from microphones and provide audio outputs to headphones or speakers, enhancing the gaming experience.3. Portable audio devices: The chip can be utilized in portable audio devices like MP3 players, digital voice recorders, and audio recorders. It enables high-quality audio recording through microphones and playback through headphones or speakers.4. Automotive infotainment: The LM4938MHX can be employed in automotive infotainment systems to provide audio processing and amplification. It can handle audio inputs from various sources like radios, USB, or Bluetooth, and drive speakers in the car's audio system.Overall, the LM4938MHX offers integration, high-quality audio, power efficiency, and flexibility, making it suitable for a wide range of applications where audio processing and amplification are required.
LM4938MHX Relevant information