BD3461FS-E2.pdf
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The BD3461FS-E2 is an automotive-focused audio signal control IC used for multi-channel volume management and sound processing in car head units and external amplifiers. It is typically placed in the analog audio path to provide repeatable volume control and signal routing while keeping system noise and switching artifacts under control.
With an I2C control interface, the device can be configured by the main MCU to implement user-controlled volume, mute functions, input selection, and other system-level audio behaviors. ROHM's switching design philosophy targets reduced transient noise, which is important for automotive cabins where pops/clicks can be very noticeable.
The BD3461 family is commonly seen in designs that require multiple channels for front/rear, subwoofer, or multi-zone routing-helping simplify the BOM and improve consistency compared with discrete analog switching networks.
Supports multi-speaker architectures where consistent volume behavior across channels is essential for balanced cabin tuning.
MCU-based control enables flexible audio UI behavior, presets, and production calibration without complex analog controls.
Designed to reduce audible switching artifacts (pops/clicks) during input switching, mute and volume changes in real-world automotive use.
Integrates functions that would otherwise require multiple analog switches and resistor networks, reducing board area and improving consistency.
Designed for multi-channel analog audio paths commonly used in head units and multi-speaker amplifier systems.
Supports programmable volume control steps and mute behavior controlled by the system MCU.
Built for automotive audio environments where stable behavior and reduced switching noise are important.
| Parameter | Value / Condition |
|---|---|
| Function | Multi-channel electronic volume / sound processor |
| Control Interface | I2C |
| Channel Count | 6 channels (system dependent) |
| Target Market | Automotive audio |
| Package | SSOP / SOP family (FS code) |
A commonly referenced ROHM alternative (verify feature set and pinout) includes:
When selecting a replacement, compare channel mapping, control register compatibility, supply rails, and switching behavior (pop/click performance) under your specific audio routing conditions.
ROHM Semiconductor provides a broad portfolio of automotive-grade analog ICs, including audio processors, signal switches, power management and interface solutions widely used in car infotainment and amplifier platforms.
Analog signal routing and volume control for multi-source infotainment audio systems.
Multi-channel volume control and routing for front/rear/sub speaker architectures.
Independent tuning and level control for different cabin speaker zones and channels.
Audio pre-processing and switching where low audible artifacts are a design priority.
We currently provide peer-to-peer order processing. Submit an RFQ for BD3461FS-E2, and our professional agent will contact you with competitive global pricing and guide you to complete the order once you accept the offer.
Our experienced QC team strictly verifies and tests BD3461FS-E2. Only qualified suppliers who pass our audit can list BD3461FS-E2 on OEM STOCK GLOBAL LIMITED. We pay close attention to sourcing channels and product quality so you can purchase with confidence.
Pricing and inventory for BD3461FS-E2 fluctuate and are updated periodically (typically within 24 hours). Quotations generally remain valid for 5 days unless otherwise stated.
Wire Transfer, PayPal, Alipay, WeChat Pay, Credit Card, Western Union, MoneyGram, and Escrow are supported. Note: Some payment methods may incur a handling fee.
We support DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is available. After dispatch, you will receive an email with tracking information. Note: Carriers may take up to 24 hours to show tracking events. Typical transit time: 3–5 days by express; 25–60 days by registered mail.
We perform Pre-Shipment Inspection (PSI) on randomly selected units before shipping. If there is an issue with BD3461FS-E2, returns/replacements are accepted when:
Steps: (1) Inform us within 90 days; (2) Obtain Return Authorization (RMA) before sending items back.
Please contact us for technical documents and support related to ROHM Semiconductor BD3461FS-E2, including pin diagrams and datasheets. Our team will respond promptly.
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