LV3319PM-V147-NE

Audio Special Purpose Overview

The LV3319PM-V147-NE is a Bi-CMOS electronic volume and tone integrated circuit designed for automotive audio systems. It provides comprehensive audio control functions including input selection, gain adjustment, volume, loudness, balance, fader, and bass/mid/treble equalization. The device features six channels and utilizes an I2C interface for digital control. Operating on a supply voltage of 7V to 9.5V, it incorporates zero-cross switching, soft step, and soft mute circuits to minimize noise during signal transitions. The component is housed in a 44-QIPM (10x10) surface-mount package.

Audio Special Purpose Feature Summary

• Integrated SCF technology eliminates external components for the equalizer control block.
• Zero-cross switching circuits ensure low-noise operation for volume, fader, and general-purpose blocks.
• Supports independent L/R control with 1dB step resolution across volume, fader, and tone blocks.
• Configurable center frequencies and quality factors for bass, mid, and treble controls.

Audio Special Purpose Applications

• Automotive audio systems
• Car head units
• In-dash amplifiers

Audio Special Purpose Procurement Notes

Verify the obsolete status of this part number before initiating procurement processes. Confirm that the 44-QIPM package dimensions align with existing PCB footprints. Ensure I2C bus timing requirements are met by the host controller. Check for RoHS compliance documentation if required by local regulations.

Audio Special Purpose Selection Notes

Select this component when a high channel count with integrated tone shaping is required. Verify that the operating temperature range of -40°C to +85°C meets environmental specifications. Ensure the power supply voltage remains within the 7V to 9.5V window. Confirm that the I2C interface speed does not exceed the maximum operating frequency of 400 kHz.

Audio Special Purpose Part Context

This component belongs to the LV331 series of electronic volume ICs from onsemi. It is specifically engineered for car audio applications requiring minimal external passive components. The V147-NE suffix indicates specific packaging and ordering details associated with the manufacturer's distribution channels.

Audio Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, alternative solutions require manual verification of pin compatibility and functional equivalence with newer automotive audio controllers.

Audio Special Purpose FAQ

What is the maximum attenuation capability of the volume control?

The volume control provides a range from +10dB to -79dB with 1dB steps, plus an infinite attenuation (-∞dB) mute state.

How is the equalizer functionality implemented?

The LV3319PM uses SCF technology to implement bass, mid, and treble controls internally, eliminating the need for external equalizer components.

What is the purpose of the zero-cross switching circuit?

The zero-cross switching circuit minimizes switching noise by detecting the optimal moment to update data, ensuring smooth transitions without audible clicks or pops.