LV3313PM-TLM-E

Audio Special Purpose Overview

The LV3313PM-TLM-E is a Bi-CMOS electronic volume IC designed for car audio systems. It integrates input selection, gain control, volume, loudness, balance, fader, and bass/treble functions. The device supports four inputs (three single-ended, one differential) and operates on a 7V to 9V supply. Key features include zero-cross switching circuits for low-noise signal detection and soft mute capabilities. Controlled via the CCB serial interface, it provides independent L/R channel adjustment with an inter-input crosstalk specification of 88dB.

Audio Special Purpose Feature Summary

• Integrated audio controls: Input selector, gain (+0 to +18dB), volume (+10 to -79dB/-∞), loudness, balance, fader, and ±12dB bass/treble EQ.
• Zero-cross switching circuits automatically detect optimal signal locations in input gain and volume blocks to minimize switching noise.
• Soft mute function reduces switching noise during mute/unmute operations with selectable settling times (0.64ms, 5.12ms, 40ms, or 80ms).
• Low power consumption achieved through BiMOS process technology.

Audio Special Purpose Applications

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

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix '-TLM-E' against current manufacturer documentation to confirm package type and tape/reel specifications. Confirm automotive grade qualification status as required by the target application environment.

Audio Special Purpose Selection Notes

Select this component when designing automotive audio circuits requiring integrated volume and tone control. Ensure the microcontroller supports the CCB serial protocol. Verify that the external capacitor values for loudness and equalizer filters match the design requirements for the desired frequency response.

Audio Special Purpose Part Context

This part belongs to the LV331 series of electronic volume ICs from onsemi. It is specifically engineered for variable speed control and rich audio management in automotive environments, offering a compact solution compared to discrete implementations.

Audio Special Purpose Replacement Considerations

Check for updated versions within the LV331 family. Verify pin compatibility if substituting with other automotive audio controllers. Ensure the replacement supports the same CCB interface and voltage range.

Audio Special Purpose FAQ

How does the LV3313PM handle switching noise?

It utilizes zero-cross switching circuits in both the input gain and volume control blocks. These circuits automatically switch the signal detection location to minimize switching noise.

What is the maximum attenuation range for the volume control?

The volume control range is from +10dB to -79dB, with a final setting for infinite attenuation (-∞).

Can the fader be controlled independently for front and rear channels?

Yes, the fader block allows independent attenuation control for each of the four channels (Front Left, Front Right, Rear Left, Rear Right).