BD37512FS-E2

Audio Special Purpose Overview

The BD37512FS-E2 is an audio tone processor IC from Rohm Semiconductor, designed to streamline design processes through software and circuit board standardization. It integrates a 2-band equalizer (bass/treble) for audio adjustment without requiring external components. The device features three stereo input channels with one isolated input, selectable via an internal switch, and provides four independent output channels (front/rear L/R) with individual volume control. Communication is managed via an I2C interface. Key electrical specifications include a supply voltage range of 7V to 9.5V, a typical quiescent current of approximately 15mA, and an operating temperature range of -40°C to 85°C.

Audio Special Purpose Feature Summary

• Integrated 2-band equalizer (Bass/Treble) with no external filter components required
• Three stereo inputs with input selector and four independent channel outputs
• I2C bus interface for digital control of volume, tone, and input selection
• Low power consumption with ~15mA typical quiescent current

Audio Special Purpose Applications

• Standard audio systems requiring integrated tone control
• Multi-source audio players with front and rear speaker outputs
• Consumer electronics utilizing I2C-controlled audio processing

Audio Special Purpose Procurement Notes

Verify the package designation matches the 20-SSOP-A form factor. Confirm the RoHS compliance status as indicated in official documentation. Ensure the ordering suffix corresponds to the specific tape and reel quantity requirements (Standard Package: 2,000). Check for any automotive grade qualifications if applicable to the target application environment.

Audio Special Purpose Selection Notes

Select this component when a compact solution for multi-channel audio processing with built-in EQ is required. It is suitable for designs needing independent volume control for four channels and support for multiple audio sources. Verify that the 7V to 9.5V supply voltage aligns with the system power architecture.