BD37033FV-ME2

Overview

The BD37033FV-ME2 is an automotive audio DSP manufactured by ROHM Semiconductor, designed for high-quality sound processing in vehicle audio systems. It integrates a 3-channel input selector with stereo isolation capabilities, volume control, a 3-band equalizer (bass, mid, treble), loudness compensation, and a low-pass filter for subwoofers. The device operates on a 7V to 9.5V supply voltage and communicates via an I2C interface. Packaged in a 28-SSOP-B format, it supports surface mount installation and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated 3-band tone control (Bass, Mid, Treble) and loudness function
• Built-in advanced switch circuit eliminates impact noise during mute transitions and low-frequency signal input
• Supports 6-channel independent volume control and fader adjustment
• AEC-Q100 qualified for automotive functional safety support

Applications

• Automotive audio system main processors
• Vehicle head units requiring integrated tone and volume control
• Car audio setups with dedicated subwoofer outputs

Procurement Notes

Verify the specific suffix ME2 against the manufacturer's latest Product Change Notice (PCN). While electrical characteristics remain unchanged, certain specifications may be updated. Confirm current availability status as production cycles and stock levels fluctuate. Ensure the ordering quantity matches the factory taping requirements specified in the official documentation.

Selection Notes

Select this component when designing automotive audio circuits requiring a single-chip solution for input selection, EQ, and volume management. Ensure the microcontroller supports the required I2C communication protocol. Verify that the power supply rail stays within the 7V to 9.5V operating range. Consider the SSOP-B28 package dimensions for PCB layout constraints.

Part Context

This part belongs to ROHM's series of sound processors developed specifically for automotive applications. It is designed to simplify board design by reducing external components and standardizing control software across different product lines. The device replaces discrete analog tone control circuits with a programmable digital solution.

Replacement Considerations

Check for direct pin-to-pin replacements within the same ROHM family, such as the BD37533FV, noting differences in channel configurations. Any substitution requires verification of the I2C register map compatibility and power supply requirements.