BD3465FV-E2 4-Channel Audio Volume Controller | ROHM Semiconductor
料号： BD3465FV-E2 ✗ 停产BD3465FV-E2 概述
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.
直接替换替代料： BD3465FV-E2 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料BD3465FV-E2 最大额定值与电气特性
| 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 |
| 工作温度范围 | -40°C to +85°C |
| 封装 | 20-SSOP-B |
| Package Type | SSOP-B |
| 安装类型 | Surface mount |
| 分类 | 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 引脚配置指南
BD3465FV-E2（ssop-b 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： BD3465FV-E2.
请参阅 数据手册 以查看完整引脚配置。
典型应用
BD3465FV-E2 适用于 6 应用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.
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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.
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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.
推荐
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.
推荐
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.
推荐
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.
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推荐产品汇总
工程参考数据： BD3465FV-E2 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| 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 |
关键差异点
- Four-channel volume control in one device （对比 Discrete four-channel attenuator implementation)
- Integrated advanced switch （对比 Standalone four-channel volume-control IC without the specified switch)
- Digital I2C control （对比 Analog potentiometer-based volume control)
- Verified broad temperature range （对比 Audio components restricted to a narrower commercial temperature range)
设计说明
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.
合规信息
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.
