LV3319PM-TLM-E

Audio Special Purpose Overview

The LV3319PM-TLM-E is a Bi-CMOS electronic volume and tone control IC designed for car audio systems. It integrates input selection, gain control, volume, loudness, balance, fader, and bass/mid/treble equalization functions. The device operates on a 7V to 9.5V supply with a typical current drain of 32 mA. Key electrical characteristics include an inter-input crosstalk of 80 dB, total harmonic distortion of 0.01%, and maximum attenuation of 80 dB. It utilizes I2C interface for control and features zero-cross switching and soft mute circuits to minimize noise.

Audio Special Purpose Feature Summary

• Integrated 3-band equalizer (Bass/Mid/Treble) with selectable center frequencies and quality factors.
• Zero-cross switching and soft step/mute circuits for low-noise operation.
• I2C digital interface for comprehensive control of volume, fader, and input selection.
• Bi-CMOS process technology for low power consumption.

Audio Special Purpose Applications

• Car audio systems
• Electronic volume control units
• Audio tone processing modules

Audio Special Purpose Procurement Notes

Verify the package type matches the design requirements, as the datasheet specifies a 44-QIPM (10x10) package while local data indicates 44-BQFP. Confirm the operating temperature range of -40°C to +85°C aligns with the application environment. Ensure the I2C communication protocol settings match the system controller specifications.

Audio Special Purpose Selection Notes

Select this component for applications requiring integrated audio tone shaping and volume control in automotive environments. The wide supply voltage range (7V-9.5V) suits vehicle power systems. Consider the 44-pin package size for PCB layout constraints. Verify that the required number of inputs and outputs fits the specific audio channel configuration.

Audio Special Purpose Part Context

The LV3319PM is part of ON Semiconductor's lineup of specialized audio ICs. The '-TLM-E' suffix typically denotes tape and reel packaging and environmental compliance, though specific suffix definitions should be confirmed with the manufacturer. This model replaces older discrete audio control solutions by integrating multiple functions into a single chip.

Audio Special Purpose Replacement Considerations

Direct pin-to-pin replacements are not explicitly listed in the provided documentation. When selecting alternatives, ensure compatibility with the I2C interface, supply voltage range, and package dimensions. Evaluate functional equivalents from other manufacturers that offer similar 3-band EQ and volume control capabilities.

Audio Special Purpose FAQ

What is the maximum attenuation capability of the LV3319PM?

The maximum attenuation is specified as 80 dB under standard test conditions.

How does the zero-cross switching function work?

The zero-cross switching circuit detects the signal crossing point to switch data, minimizing switching noise. Detection locations can be selected for different blocks like input gain or main volume.

What are the selectable center frequencies for the bass control?

The bass control center frequency can be selected from 60Hz, 70Hz, 100Hz, or 120Hz.