BD3809FS-E2 Audio Processor 22-SOP | ROHM Semiconductor
MPN： BD3809FS-E2 ✓ 啟用中BD3809FS-E2 概覽
An audio processor IC is a specialized form of signal-processing semiconductor. In the broader hierarchy, it belongs to the integrated-circuit category and is associated with audio-channel processing, interface, and control functions. Unlike a general-purpose microcontroller or DSP, the BD3809FS-E2 is positioned specifically for audio applications. Exact input formats, output stages, control interfaces, gain settings, distortion limits, voltage requirements, and supported channel configurations are not present in the supplied verified data and should therefore be confirmed in the manufacturer datasheet before schematic capture or PCB layout.
The verified catalog data provides several practical procurement and assembly facts. The BD3809FS-E2 is offered as an IC AUDIO PROCESSOR in a 22SOP package. One distributor lists its RoHS status as ROHS3 compliant, and another listing describes the component as tape-and-reel packaged. Digikey identifies the part as available from ROHM Semiconductor and provides access to datasheet, pricing, and availability information. These catalog statements make the part searchable as a dedicated audio-channel solution rather than a generic logic or memory device.
The BD3809FS-E2 is relevant to audio-system design, including signal-conditioning modules, compact audio interfaces, and equipment requiring a dedicated audio processor. Because the supplied snippets do not disclose the complete electrical architecture, designers should not assume a particular microphone gain, line-level input sensitivity, speaker-drive capability, channel count, sampling format, or supply voltage. The manufacturer datasheet and pinout are the controlling references for those details.
A key engineering consideration is that the 22SOP footprint requires PCB design rules appropriate to the exact lead pitch and outline shown in the manufacturer drawing. Confirm pad dimensions, pin numbering, exposed thermal features if any, soldering profile, and recommended ground layout before releasing artwork. Also verify the logic levels, power rails, decoupling requirements, and analog signal routing against the target system architecture.
This page consolidates the verified catalog identity, category, package, RoHS statement, packaging format, distributor availability, and engineering-selection cautions for BD3809FS-E2. It also distinguishes verified facts from parameters that still require datasheet confirmation, helping engineers make an initial sourcing decision without mistaking category-level descriptions for full electrical specifications.
直接替換替代品，適用於 BD3809FS-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BD3809FS-E2 最大額定值與電氣特性
| Product Type | Audio processor |
| DigiKey Classification | Audio Channel |
| Manufacturer | ROHM Semiconductor |
| 封裝 | 22-pin SOP |
| Package Designation | 22SOP |
| 安裝類型 | Surface mount |
| Packaging Type | Tape & Reel |
| Listed Inventory | 4,609 pieces |
| RoHS 狀態 | ROHS3 compliant |
| Supply Status | In stock at referenced distributor |
| Product Category | Integrated Circuits, Audio Special Purpose |
| 腳位數 | 22 pins |
BD3809FS-E2 22sop 腳位配置指南
BD3809FS-E2（22sop 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： BD3809FS-E2.
請參閱 資料表 以查看完整腳位配置。
典型應用
BD3809FS-E2 適用於 6 應用s: Compact Audio Signal-Processing Module, Audio Interface Card, Stereo Audio Control Board, Consumer Audio Appliance, Industrial Audio Monitoring Unit, Audio Test and Measurement Front End.
Compact Audio Signal-Processing Module
The BD3809FS-E2 fits compact audio signal-processing modules that require a dedicated audio-channel IC rather than a general-purpose controller. Its verified 22-pin SOP package provides a defined surface-mount integration path, while tape-and-reel presentation supports automated assembly. The part is cataloged by DigiKey as an audio-channel device and by other distributors as an audio processor, making it suitable for initial architecture evaluation in audio modules, provided the manufacturer datasheet confirms the required gain, signal levels, channel configuration, supply voltage, control interface, and output drive. Engineers should preserve the 22SOP footprint in existing designs and avoid inferring unverified capabilities from the category label alone.
推薦
Audio Interface Card
The BD3809FS-E2 is a candidate for an audio interface card where the system uses a 22SOP audio processor and benefits from a dedicated signal-processing component. The verified package designation of 22SOP allows PCB designers to preserve an existing footprint, while the tape-and-reel format is practical for volume assembly. Before integrating it, confirm the datasheet's analog input range, output configuration, channel count, sample-rate-related functions, control protocol, and supply requirements. This approach is especially relevant when avoiding a controller-based implementation would reduce firmware complexity, but only if the device's documented processing functions satisfy the interface specification.
推薦
Stereo Audio Control Board
The BD3809FS-E2 can be evaluated for a stereo audio control board that relies on a dedicated audio processor in a 22-pin SOP package. Its verified classification supports use in the audio-processing portion of the design, while the surface-mount format simplifies integration into multilayer PCBs. Designers should verify from the datasheet whether the required stereo channels, volume or gain control, mute behavior, input selection, and low-level signal compatibility are supported. Because those electrical details are absent from the supplied search evidence, the part should proceed through schematic review and prototype testing rather than be treated as automatically interchangeable with generic audio amplifiers.
推薦
Consumer Audio Appliance
The BD3809FS-E2 is applicable to consumer audio appliances where a dedicated 22SOP audio processor can simplify the hardware architecture. The verified catalog identity establishes the functional category and package, and the observed tape-and-reel format supports repeatable production assembly. For a practical appliance design, confirm standby behavior, power consumption, control pins, thermal limits, and ESD considerations in the manufacturer documentation. The part is most attractive when the existing platform uses the 22SOP footprint or when a hardware-dedicated audio path is preferred over assigning processing work to a system microcontroller.
推薦
Industrial Audio Monitoring Unit
The BD3809FS-E2 may be evaluated for an industrial audio-monitoring unit that requires an audio-specific integrated circuit and a compact 22-pin surface-mount package. Using a dedicated processor can localize audio-channel functions, but the supplied verified data does not establish industrial temperature grades, EMC performance, noise floor, or monitoring-specific behavior. Those attributes must be verified in the datasheet and qualification records before deployment. The selected tape-and-reel packaging is suitable for manufacturing integration, and the part can be prototyped where an existing 22SOP land pattern is already established.
推薦
Audio Test and Measurement Front End
The BD3809FS-E2 is a possible candidate for an audio test and measurement front end when the required functions are confirmed to match the manufacturer's audio-processor implementation. A dedicated 22SOP device can make the signal path compact and repeatable, although the verified catalog snippets provide no distortion, noise, bandwidth, gain accuracy, or calibration data. Those specifications are decisive for instrumentation and must be obtained from the datasheet. Before building a precision fixture, validate channel matching, control resolution, temperature stability, and grounding requirements on prototype hardware.
推薦
推薦產品摘要
工程參考資料，適用於 BD3809FS-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 | 22-pin SOP |
| Brand | ROHM Semiconductor |
| Product Type | Audio processor / audio channel |
| Mounting Type | Surface mount |
| Packaging | Tape & Reel |
| Listed Inventory | 4,609 pieces at one referenced distributor |
| RoHS Status | ROHS3 compliant |
主要差異化特點
- Dedicated 22SOP audio-processing format (對比BD3429K-E2)
- Production-oriented tape-and-reel packaging (對比BD3809FS)
- Documented RoHS status in the verified listing (對比BD3809FS)
設計說明
Design the PCB land pattern from the manufacturer's 22SOP mechanical drawing rather than from a generic SOP library. Verify body width, lead pitch, lead span, toe radius, courtyard clearance, and pin-one orientation before layout release. The supplied verified data confirms only the 22SOP designation, so an assumed footprint could create soldering, clearance, or pin-mapping errors.
Do not select BD3809FS-E2 solely from its broad audio-processor classification. The verified records do not disclose supply voltage, channel count, gain, control interface, signal-to-noise ratio, distortion, or output-drive capability. Compare the complete datasheet requirements with the target schematic, and do not treat BD3809FS or BD3429K-E2 as substitutes without proving package and pin compatibility.
Keep analog signal routing short and isolate sensitive audio paths from switching and digital return currents. Follow the manufacturer's recommended grounding and decoupling arrangement once those details are available; the current dataset does not provide pin assignments or capacitor values. Prototype measurements should check noise, channel behavior, gain accuracy, and output distortion across the intended operating range.
Determine the actual power-supply requirement and thermal dissipation from the manufacturer datasheet before committing to the 22SOP layout. Do not infer limits from the listed inventory or package family. If the audio processor drives an external amplifier, include adequate local supply decoupling and verify startup, shutdown, and signal-pop behavior under the intended system conditions.
合規資訊
A verified distributor listing states ROHS3 compliant. REACH, halogen-free, conflict-minerals, and AEC-Q100 status were not established by the supplied data.
