BD37522FS-E2

Audio Special Purpose Overview

The BD37522FS-E2 is a sound processor IC from ROHM Semiconductor featuring a built-in 2-band equalizer (bass and treble) that requires no external components. It includes a 3-input selector, volume control, and a 4-channel independent output controller supporting 3 music sources with front/rear L/R outputs. The device operates on a single power supply of 7 V to 9.5 V with a typical quiescent current of 38 mA. It utilizes an I2C interface for digital control and is housed in a 24-pin SSOP-A package.

Audio Special Purpose Feature Summary

• Built-in 2-band equalizer (Bass/Treble) without external filter components
• 3-way input selector and 4-channel independent volume control
• I2C bus interface for digital parameter setting
• Single power supply operation (7 V to 9.5 V)
• Low quiescent current (Typ. 38 mA)

Audio Special Purpose Applications

• Standard home audio equipment
• Sound processors requiring compact design
• Multi-source audio systems

Audio Special Purpose Procurement Notes

This product is classified as 'Standard Grade' and is explicitly NOT recommended for use in automotive equipment. Verify RoHS compliance (RoHS3) and packaging details (Tape & Reel, 2000 units) via the manufacturer's latest documentation.

Audio Special Purpose Selection Notes

Select this component when a space-saving solution with integrated tone control and multi-channel output is needed for standard-grade applications. Note that it is not suitable for automotive environments. Ensure the system voltage supports the 7 V minimum requirement.

Audio Special Purpose Part Context

The BD37522FS-E2 belongs to a series designed to achieve commonality in control software and circuit boards across different product lines. It is part of the BD375xxFS family of audio tone processors.