BD37531FV-E2

Audio Special Purpose Overview

The BD37531FV-E2 is a sound processor IC manufactured by ROHM Semiconductor, designed for audio tone control and volume management. It operates within a supply voltage range of 7 V to 9.5 V and features an I2C bus interface for digital control. The device integrates a 3-band equalizer (Bass, Middle, Treble) and supports stereo inputs with configurable channel outputs. Key electrical specifications include a typical operating current of 38 mA, a THD+N of 0.002%, and an output power capability of approximately 1.06 W. It is housed in a 28-pin SSOP-B package.

Audio Special Purpose Applications

• Automotive audio systems requiring integrated tone processing and volume control.
• Consumer audio equipment utilizing I2C-based system architectures.
• Home amplifiers needing digital bass, mid, and treble adjustments.

Audio Special Purpose Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm pinout and functional compatibility. Ensure the SSOP-B28 package dimensions match the PCB footprint design. Confirm RoHS compliance status if required by local regulations. Check lead times as production cycles may vary (typically around 12 weeks). Validate that the 7V-9.5V supply range aligns with the target system's power rails.

Audio Special Purpose Selection Notes

Select this component when a single-chip solution for tone processing and volume control is needed. It is suitable for designs requiring I2C digital control rather than analog potentiometers. Consider the 28-pin SSOP package size for space-constrained boards. Note that while it is used in automotive applications, verify if specific automotive-grade qualification (e.g., AEC-Q100) is required for your specific application context, as standard industrial specs are typically listed.

Audio Special Purpose Part Context

The BD37531FV-E2 belongs to the BD3753x series of sound processors from ROHM. This series aims to simplify system design by integrating multiple audio functions into one IC, reducing external components. It shares common software and board layouts with related models like the BD37533FV, facilitating product line expansion.

Audio Special Purpose Replacement Considerations

The BD37533FV-E2 is a closely related model in the same series. Verify pin-to-pin compatibility and functional differences before substitution. Other members of the BD3753x family may offer similar interfaces but different output configurations or input options.