BD3461FS-E2 - 6-Channel Audio Volume Control IC | ROHM Semiconductor
部品番号: BD3461FS-E2 ✗ 生産終了BD3461FS-E2 概要
An electronic volume control IC is a type of analog audio processor that adjusts signal amplitude using internal attenuator and control circuitry. The BD3461FS belongs to the broader audio processor hierarchy: electronic volume controller, audio signal-path IC, analog audio IC, and ultimately semiconductor. This makes it more specialized than a general-purpose operational amplifier. Instead of amplifying a signal directly for a loudspeaker, the BD3461FS controls the level presented to downstream amplifiers while providing channel selection and source-mixing flexibility. Its built-in advanced switch is particularly useful when the product must combine multiple audio sources, such as music playback and navigation guidance, into a common output path.
The verified product information identifies the BD3461FS-E2 as a 6-channel device with I2C bus control and a 7 V to 9.5 V operating supply range. Its 24-SSOP-A package provides a surface-mount implementation for compact audio equipment. The general-purpose electronic-volume description and integrated switching function distinguish it from simple fixed attenuators. Engineers can use the I2C control path to integrate volume changes into a system controller rather than relying on mechanical potentiometers. The device is also suitable for external sound mixing in the favorite channel, a feature specifically described for portable audio and car navigation guide-sound applications.
The BD3461FS-E2 is marked by ROHM as “Not Recommended for New Designs,” meaning that it cannot be used for new designs or design diversion. Existing equipment may still use the part for repair or maintenance, but new product development should use a currently recommended audio-processing solution. The available pricing is approximately $5.4110 per unit at the referenced distributor listing, as of 2026-10-30. Volume pricing, complete lifecycle timing, and detailed electrical limits were not included in the verified data, so those values require confirmation from ROHM or an authorized distributor before committing a production order.
Typical applications include multi-zone audio systems, portable media devices, automotive navigation audio, navigation prompt mixers, and other products that need independent level control for several sound channels. In an automotive navigation system, the advanced switch can combine a music source with navigation announcements through the designated favorite channel. The I2C interface permits the host controller to change levels during system operation, while the 24-SSOP-A package supports automated PCB assembly. Designers should still confirm the complete application circuit, external component requirements, signal levels, and timing behavior against the manufacturer datasheet.
The principal design consideration is lifecycle risk. Because ROHM explicitly states that BD3461FS-E2 is not recommended for new designs, engineers should treat it as a maintenance or legacy-platform component rather than a default choice for new consumer products. For an existing board, verify the exact package, pinout, supply voltage, I2C address and electrical timing, and audio-path configuration before substitution. For new equipment, request an active ROHM alternative or redesign the audio subsystem around a currently supported device, because a distributor listing or cross-reference result alone does not prove pin-to-pin compatibility.
This page combines verified ROHM product status, distributor descriptions, the available price and package information, same-family alternatives, and practical selection guidance. It distinguishes confirmed technical facts from parameters that still require datasheet review, helping engineers compare the BD3461FS-E2 without treating generic cross-reference results as guaranteed drop-in replacements.
ドロップイン代替品: BD3461FS-E2 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
BD3461FS
✅ ドロップイン📋 参考代替品（カタログ未掲載）
BD3460FS-E2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
BD3452KS
✅ ドロップイン価格はお問い合わせください
データシートを見る →BD3461FS-E2 最大定格＆電気的特性
| Device Type | 6-channel electronic volume control IC |
| Channel Count | 6 channels |
| Supply Voltage Range | 7 V to 9.5 V |
| Control Interface | I2C bus |
| パッケージ | 24-SSOP-A |
| Package Type | Surface-mount SSOP-A |
| Switch Function | Built-in advanced switch |
| Audio Function | General-purpose electronic volume control |
| Sound Mixing | External sound mixing in the favorite channel |
| Application Category | Audio volume control |
| Portable Audio Use | Supported |
| Car Navigation Use | Supported |
| Lifecycle Recommendation | Not Recommended for New Designs |
| Design Diversion | Not permitted |
| Manufacturer | ROHM Semiconductor |
| Pricing Date | $5.4110 per unit as of 2026-10-30 |
| Lead Time | To be confirmed |
BD3461FS-E2 surface-mount ssop-a ピン配置ガイド
BD3461FS-E2 (surface-mount ssop-a パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: BD3461FS-E2.
詳細は データシート をご参照ください。
主な用途
BD3461FS-E2 の用途: 6 件s: Automotive Navigation Audio, Portable Audio Player, Multi-Zone Home Audio, Navigation Prompt Mixer, Consumer Audio Mixer, Legacy Audio Equipment Repair.
Automotive Navigation Audio
The BD3461FS-E2 fits automotive navigation audio systems that must combine music with navigation prompts and balance multiple sound channels. Its verified 6-channel electronic-volume architecture, 7 V to 9.5 V supply range, and I2C control allow the host electronics to adjust levels without mechanical potentiometers. The built-in advanced switch is specifically associated with car navigation guide-sound mixing, helping direct prompts and background audio through the favorite channel. For an existing vehicle head unit, the device can preserve the established signal path; for new development, its not-recommended-for-new-designs status should be treated as a strong lifecycle objection.
おすすめ
Portable Audio Player
The BD3461FS-E2 is suitable for portable audio equipment requiring programmable volume control across as many as 6 channels. Its I2C interface lets a controller apply user-volume changes and route audio sources electronically, while the built-in advanced switch supports mixing portable playback with auxiliary sound. The confirmed 24-SSOP-A package is suitable for compact surface-mount assemblies. A practical benefit is the elimination of a separate mechanical volume control and some discrete routing circuitry, although system-level noise, current consumption, and startup behavior still require confirmation from the manufacturer datasheet.
おすすめ
Multi-Zone Home Audio
A multi-zone home-audio system can use the BD3461FS-E2 to control levels for up to 6 channels from a central I2C host. This is useful where different rooms or speaker groups require independent attenuation and where navigation-style announcements must be mixed into a favorite listening zone. The electronic-volume approach avoids exposed potentiometers and permits software-driven level changes. Because the verified lifecycle status is not recommended for new designs, engineers should prefer this IC for maintaining an established design and evaluate a currently supported audio controller for new residential equipment.
おすすめ
Navigation Prompt Mixer
The BD3461FS-E2 is a logical legacy choice for a navigation prompt mixer because the manufacturer explicitly identifies external sound mixing in the favorite channel for portable audio and car navigation guidance. Its built-in advanced switch can combine an announcement path with another source, while the 6-channel volume architecture provides separate attenuation where required. I2C control allows the system controller to prioritize prompts or restore music levels automatically. In maintenance designs, preserve the original switching and gain configuration; in redesigned products, use the latest ROHM guidance because the verified product page prohibits design diversion.
おすすめ
Consumer Audio Mixer
The BD3461FS-E2 can serve as the central volume-control element in a legacy consumer audio mixer that combines several sources and controls up to 6 channels. Its I2C interface provides a programmable alternative to potentiometers, while the built-in advanced switch reduces the need for separate source-selection hardware. The 24-SSOP-A package supports standard surface-mount manufacturing, and the confirmed 7 V to 9.5 V supply range suits compatible legacy rails. Verify analog input and output levels, allowed signal amplitudes, and control timing in the datasheet because those detailed values were not supplied in the verified excerpts.
おすすめ
Legacy Audio Equipment Repair
BD3461FS-E2 is most appropriate for repairing or maintaining an existing audio product that already uses this ROHM controller. Multiple distributor listings report availability, including a verified 2,960-piece stock reference at $5.4110 per unit as of 2026-10-30. This inventory access helps sustain legacy equipment, but it does not change the manufacturer’s not-recommended-for-new-designs classification. Before installation, match the 24-SSOP-A footprint, inspect the board for contamination or damaged leads, and confirm the original device’s pinout and I2C settings. For new production, obtain an active replacement and validate the complete audio path.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: BD3461FS-E2 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | BD3461FS | BD3460FS-E2 | BD3452KS |
|---|---|---|---|---|
| Package | 24-SSOP-A | 24-SSOP-A | 24-SSOP-A | 24-SSOP-A |
| Brand | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor |
主な差別化要因
- Six-channel integrated audio volume control （vs BD3460FS-E2)
- Integrated advanced switch for source mixing （vs BD3452KS)
- Programmable I2C control （vs BD3461FS)
設計ノート
Do not select BD3461FS-E2 for a new product without written ROHM approval. The verified manufacturer listing states that the device is not recommended for new designs and cannot be used for design diversion. For maintenance, verify the complete ordering code, package markings, and original schematic. For new development, select a currently recommended controller and treat distributor cross-reference results as leads rather than confirmed substitutions.
Provide a stable supply within the verified 7 V to 9.5 V operating range and observe the absolute maximum ratings in the manufacturer datasheet. The supplied excerpts do not include current consumption, supply ripple limits, or decoupling recommendations, so do not infer those values from generic audio-controller designs. Confirm startup sequencing and power-supply noise with the actual reference circuit before production.
Preserve the original 24-SSOP-A land pattern unless the manufacturer confirms another package is pin-compatible. Keep the I2C traces short and route them away from sensitive audio paths; confirm pull-up resistor values from the datasheet because the supplied data does not specify them. Audio traces should maintain the original grounding topology, and unused routing should follow the reference design rather than being replaced with generic assumptions.
コンプライアンス情報
The verified excerpts did not provide compliance declarations. ROHM identifies BD3461FS-E2 as not recommended for new designs, but that lifecycle statement is not evidence of AEC-Q100 qualification or material compliance.
