BD3825FS-E2

Audio Special Purpose Overview

The BD3825FS-E2 is an audio signal switch IC designed for consumer audio applications, such as PAL DVD recorders. It integrates analog switches to route audio signals, featuring two 3-input-to-1-output switches and two 2-input-to-1-output switches with mute capabilities. The device operates on a single power supply (typically +5V or ±5V) and does not require a separate +12V rail for function switching.

Audio Special Purpose Feature Summary

• Audio Signal Switching: Integrates multiple analog switches for routing audio inputs.
• Mute Function: Built-in mute capability for the switch channels.
• Single Supply Operation: Designed for standard low-voltage operation (e.g., +5V or dual ±5V), not requiring a dedicated high-voltage +12V rail for internal logic.
• Package: Available in 24-pin SSOP-A package.

Audio Special Purpose Applications

• PAL DVD Recorders
• Consumer Audio Equipment
• Set-Top Boxes

Audio Special Purpose Procurement Notes

The BD3825FS-E2 is listed as 'Obsolete' or 'End of Life' by major distributors. Verify current stock availability and lead times. Ensure RoHS compliance status matches the specific revision purchased.

Audio Special Purpose Selection Notes

Select this component for legacy designs requiring specific audio switching matrices for PAL systems. Note that it does not include I2C control for function switches; those functions are typically handled by external logic or other LSIs in the system. Verify voltage levels match the system's audio supply rails.

Audio Special Purpose Part Context

This part belongs to Rohm Semiconductor's General Purpose Audio Amplifiers/Audio Special Purpose category. It is often used in conjunction with video signal processors to manage audio input selection (e.g., Tuner, Digital Audio, AUX).

Audio Special Purpose Replacement Considerations

As the part is obsolete, no direct pin-compatible replacement is officially documented by ROHM. Design modifications may be required if sourcing alternative components due to differences in pinout, control interface, or performance specifications.