BD3465FV-E2 4-Channel Audio Volume Controller | ROHM Semiconductor
MPN： BD3465FV-E2 ✗ 停產BD3465FV-E2 概覽
An electronic volume controller is an audio signal-chain IC that adjusts signal amplitude in the analog domain while leaving the source and destination circuitry largely unchanged. In the broader product hierarchy, the BD3465FV-E2 belongs to the audio special-purpose IC category, combining volume control and switching functions in a single integrated circuit. This integration can reduce the number of discrete controls and simplify system-level audio routing in multi-channel equipment.
The key verified feature set includes four-channel volume control, a built-in advanced switch, I2C control, a 20-SSOP-B package, and a stated supply range of 7 V to 9.5 V. The operating temperature range reported by LCSC is -40°C to +85°C. The product is identified by ROHM as “Not Recommended for New Designs,” so it should be considered for existing designs, controlled design diversion, or legacy supply rather than selected for a new platform without qualification.
The BD3465FV-E2 is categorized by DigiKey as an Audio Special Purpose IC and by Mouser as an audio processor or audio special-purpose device. Its integrated switch function can be useful when an audio system needs to route or isolate several channels while maintaining central volume control. The exact gain range, channel-to-channel attenuation behavior, control-register map, recommended application circuit, and detailed electrical limits are not present in the supplied verified excerpts and are therefore not asserted here.
Typical legacy applications include multi-channel consumer audio, audio processing modules, powered speakers, home-entertainment equipment, and other systems using an I2C-controlled volume stage. Designers should verify the complete manufacturer datasheet before finalizing a replacement, particularly the supported input/output signal range, bypass behavior, switch configuration, decoupling requirements, and timing of the I2C interface.
The principal design consideration is lifecycle status. Because ROHM marks the device as not recommended for new designs, engineers should preserve the existing footprint and pinout where possible, confirm that distributor inventory is traceable, and avoid changing the surrounding application circuit without reviewing the full datasheet. This page synthesizes the verified product status, distributor descriptions, pricing excerpts, package information, and practical sourcing guidance for engineers evaluating BD3465FV-E2.
直接替換替代品，適用於 BD3465FV-E2 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此產品無可直接替換的替代品。
申請替代品BD3465FV-E2 最大額定值與電氣特性
| Product Type | General-purpose 4-channel electronic volume controller |
| Number of Channels | 4 channels |
| Built-in Function | Advanced switch |
| Control Interface | I2C bus |
| Supply Voltage Range | 7 V to 9.5 V |
| 工作溫度範圍 | -40°C to +85°C |
| 封裝 | 20-SSOP-B |
| Package Type | SSOP-B |
| 安裝類型 | Surface mount |
| 類別 | Audio Special Purpose |
| Audio Function | Volume control with built-in advanced switch |
| Lifecycle Recommendation | Not Recommended for New Designs |
| Manufacturer | ROHM Semiconductor |
BD3465FV-E2 ssop-b 腳位配置指南
BD3465FV-E2（ssop-b 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： BD3465FV-E2.
請參閱 資料表 以查看完整腳位配置。
典型應用
BD3465FV-E2 適用於 6 應用s: Legacy Multi-Channel Consumer Audio, Powered Speaker Control, Home Entertainment Audio Processor, Multi-Zone Audio Routing, Audio Measurement and Test Equipment, Industrial Audio Control Module.
Legacy Multi-Channel Consumer Audio
The BD3465FV-E2 fits legacy multi-channel consumer audio equipment that already uses its four-channel electronic volume-control architecture. The four controlled channels can support centralized attenuation across a source, amplifier, or preamplifier section, while the integrated advanced switch can assist with local routing. Its I2C interface is useful when a system controller manages sound levels alongside source selection. The device’s verified 7 V to 9.5 V supply range must be checked against the existing rail plan, and engineers should use the manufacturer datasheet to confirm attenuation limits and channel topology. Because ROHM marks the part as not recommended for new designs, the strongest application case is maintaining an existing product rather than launching a new one.
推薦
Powered Speaker Control
The BD3465FV-E2 can be used in a powered-speaker architecture where several audio channels require coordinated volume adjustment before amplifier stages. Its four-channel organization maps naturally to stereo, surround, or multi-zone routing, and I2C control allows volume commands to originate from a system processor rather than discrete potentiometers. The built-in advanced switch may reduce external routing hardware when its supported configuration matches the board. Designers must confirm the controller’s signal amplitude range, switch topology, and click-noise behavior from the manufacturer datasheet. The verified operating range of -40°C to +85°C can suit many indoor environments, but the not-for-new-designs status makes this primarily a legacy-platform choice.
推薦
Home Entertainment Audio Processor
The BD3465FV-E2 is applicable to legacy home-entertainment receivers and audio processors requiring four-channel electronic attenuation with centralized digital control. The I2C interface fits systems where a main controller handles volume presets, source routing, and mute sequencing, while the integrated switch can simplify the surrounding audio path. Compared with using four separate analog attenuators, a dedicated volume IC can centralize control and reduce external component count. The exact gain taper, bypass mode, and whether all four channels are independently addressable must be confirmed in the manufacturer datasheet. For new platforms, a current-lifecycle part is generally preferable unless preserving the existing 20-SSOP-B board architecture is a firm requirement.
推薦
Multi-Zone Audio Routing
The BD3465FV-E2 can support legacy multi-zone audio equipment where four channels are routed or attenuated as part of a larger switching network. Its built-in advanced switch is the key functional reason to consider this part rather than a basic four-channel potentiometer network. A system controller can issue I2C commands to maintain consistent volume across rooms, speakers, or source groups. Engineering validation should include the supported switch states, channel isolation, signal level, and pop-noise behavior because those details are not included in the supplied excerpts. The 7 V to 9.5 V operating range also requires a compatible analog rail. For new installations, evaluate current-generation alternatives unless the existing PCB and software already depend on the BD3465FV-E2.
推薦
Audio Measurement and Test Equipment
The BD3465FV-E2 may be used in legacy audio test equipment to provide repeatable electronic attenuation across several channels during signal-chain evaluation. Four controlled outputs can simplify test-fixture organization, and the I2C interface enables PC- or embedded-controller-driven level setting. The advanced switch can provide controlled isolation or routing when combined with surrounding test circuitry. Because this is a not-recommended-for-new-designs component, engineers should confirm that its attenuation accuracy, distortion, noise, and channel-to-channel matching satisfy the test specification using the full manufacturer datasheet. For new bench instruments, select a current audio attenuator with traceable accuracy and lifecycle support instead of introducing this legacy IC without a strong compatibility reason.
推薦
Industrial Audio Control Module
The BD3465FV-E2 can fit a legacy industrial audio-control module that needs four adjustable analog channels and a digital control path. Its -40°C to +85°C reported operating range may be useful in equipment with moderate temperature exposure, while I2C control simplifies integration with an existing industrial controller. The built-in advanced switch can reduce the component count when its supported signal path matches the module architecture. No AEC-Q100 qualification or other industrial certification is stated, so safety-critical or newly designed systems should not assume suitability. Confirm electromagnetic behavior, grounding, signal integrity, and availability on the exact production BOM. For new modules, use a current-lifecycle volume controller and reserve the BD3465FV-E2 for repair or controlled design continuity.
推薦
推薦產品摘要
工程參考資料，適用於 BD3465FV-E2 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Package | 20-SSOP-B |
| Brand | ROHM Semiconductor |
| Channel Count | 4 channels |
| Control Interface | I2C bus |
| Supply Voltage Range | 7 V to 9.5 V |
| Operating Temperature Range | -40°C to +85°C |
| Integrated Switch | Advanced switch |
| Lifecycle Status | Not Recommended for New Designs |
| Verified Price | $5.3257 at Heisener; from $3.3869 at LCSC as of 2026-10-29 |
主要差異化特點
- Four-channel volume control in one device (對比Discrete four-channel attenuator implementation)
- Integrated advanced switch (對比Standalone four-channel volume-control IC without the specified switch)
- Digital I2C control (對比Analog potentiometer-based volume control)
- Verified broad temperature range (對比Audio components restricted to a narrower commercial temperature range)
設計說明
Do not treat a similarly packaged volume-control IC as a drop-in replacement without comparing every pin and software register. Verify the 20-SSOP-B footprint, supply pins, I2C address, channel map, reset or enable behavior, attenuation curve, switch configuration, and absolute maximum ratings against the manufacturer datasheet. The verified cross-reference search did not identify a confirmed replacement, so an MPN substitution based only on the words “four-channel audio volume control” carries substantial integration risk.
Confirm that the existing analog rail remains inside the verified 7 V to 9.5 V operating range under startup, load, and supply-transient conditions. Follow the manufacturer datasheet for input and output capacitor selection, voltage-drop tolerances, and bypass requirements rather than applying generic audio-IC layouts. Because the supplied excerpts do not provide quiescent current, absolute maximum ratings, or decoupling values, those values must be obtained from the official datasheet before release to production.
Place the IC and its required decoupling components close to the associated power and ground pins, and route the four audio channels to minimize coupling from digital I2C activity and switching supply nodes. The integrated advanced switch may affect how quiet each channel is, so use a symmetric analog layout and verify channel-to-channel noise and crosstalk on the assembled board. Ground-reference strategy and exposed or surrounding copper should follow the package-specific land pattern and datasheet guidance.
ROHM explicitly states that the BD3465FV is not recommended for new designs or design diversion. Treat this as an obsolescence-planning signal: identify all affected boards, obtain a last-time-buy assessment from the manufacturer or authorized distributor, secure traceable inventory, and freeze the footprint and firmware interface. For new development, choose a current lifecycle controller unless retaining this exact architecture has a documented compatibility or cost advantage.
合規資訊
The supplied verified excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is marked not_applicable because this is an audio controller rather than an automotive-qualified device; no automotive qualification claim was provided.
