LM4550 Ac\97 Rev 2.1 Multi-channel Audio Codec With Stereo Headphone Amplifier Sample Rate Conversion And National 3d Sound - National Semiconductor

The LM4610 is a DC-controlled tone (bass/treble), volume, and balance circuit designed for stereo applications in car radios, televisions, and audio systems. It also incorporates National's 3D-Sound circuitry, which can be adjusted externally using a simple RC network. An additional control input facilitates loudness compensation. Four control inputs provide regulation of the bass, treble, balance, and volume functions through the application of DC voltages from a remote control system or from four potentiometers that may be biased from a Zener regulated supply available on the circuit. Each tone response is determined by a single capacitor selected to achieve the desired characteristic.

The LM4610 is an integrated circuit that serves as an advanced audio processing solution for stereo audio systems, particularly in automotive and consumer electronics applications. The device allows for precise control over audio output characteristics, enabling users to customize the sound profile to their preferences. The integration of DC control for tone adjustments enhances the user experience by allowing remote control operation, which is particularly beneficial in mobile environments where physical access to controls may be limited.

The 3D-Sound circuitry included in the LM4610 provides an immersive listening experience by simulating spatial audio effects, which can be fine-tuned through an external RC network. This feature is particularly advantageous in environments where sound quality is paramount, such as in high-end audio systems.

In terms of functionality, the four control inputs are designed to accept DC voltage signals, allowing for straightforward integration with remote control systems. Alternatively, the use of potentiometers enables manual adjustment of audio parameters, providing flexibility in installation and operation. The Zener regulated supply ensures stable voltage levels for the potentiometers, which is crucial for maintaining consistent audio performance.

The tone response characteristics of the LM4610 can be tailored using external capacitors, allowing designers to define the frequency response of the bass and treble settings. This adaptability is essential for achieving the desired audio quality across different speaker systems and acoustic environments.

Overall, the LM4610 represents a sophisticated solution for audio control, combining ease of use with advanced sound processing capabilities. Its design is optimized for versatility in various applications, making it a valuable component in modern audio systems.The LM4610 is a DC controlled Tone (bass/treble), volume and balance circuit for stereo applications in car Radio TV and Audio systems. It also features Nationals 3D-Sound Cir- cuitry which CAN be externally adjusted via a simple RC Net- work.

An additional control input allows loudness compensa- tion to be simply effected. Four control inputs pro vide control of the bass, treble, bal- ance and volume functions through application of DC volt- ages from a remote control system or, alternatively, from four potentiometers which may be biased from a zener regulated supply provided on the circuit. Each Tone response is defined by a single capacitor chosen to give the desired characteristic. By National Semiconductor Corporation 🔗 External reference