BD3816K1 - 7-Channel Audio Signal Processor | ROHM Semiconductor
部品番号: BD3816K1 ✗ 生産終了BD3816K1 概要
The BD3816K1 belongs to the broader category of audio special-purpose integrated circuits. An audio signal processor is a functional block within the signal-chain hierarchy: source audio enters the processor, control logic and internal circuitry condition the signals, and the processed outputs are sent to amplifiers, speakers, or additional audio equipment. Compared with a simple passive tone-control network, an integrated processor can centralize channel selection, volume, bass, treble, and other system functions while reducing external discrete-component requirements.
Verified distributor information identifies the BD3816K1 as a 7-channel audio audio-signal processor and identifies a 2-wire bass/treble control interface. The GlobalSpec result lists a serial interface type, an operating current of 40 mA, and an operating temperature range from -20 C to +75 C. The same source also lists supply-voltage entries of 5 V and a 5 V to 7.3 V range, while Mouser identifies a 10 V to 14.6 V operating range. Because these published entries are not mutually consistent, engineers should confirm the exact electrical limits and recommended operating conditions against the applicable ROHM datasheet before committing a design.
The 80-QFP package provides the physical pin count and lead arrangement required for a complex multi-channel audio device, but the supplied search results do not expose a complete verified pinout or internal block description. Use the official or archived manufacturer datasheet for pin assignments, control maps, signal-path details, recommended application circuitry, and electrical characteristics. The device is not a power semiconductor, so a safe-operating-area chart is not applicable. Its design should be evaluated around signal integrity, grounding, supply bypassing, control-bus compatibility, channel routing, and thermal performance in the final enclosure. This page combines verified distributor listings, package information, sourcing links, and engineering caveats without inventing unavailable electrical values.
ドロップイン代替品: BD3816K1 — 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。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストBD3816K1 最大定格＆電気的特性
| Product Type | Audio special-purpose integrated circuit |
| 機能 | 7-channel audio signal processor |
| Channel Configuration | 7 channels; described as 6.1-channel sound processing |
| 電源電圧 | 10 V to 14.6 V |
| Additional Supply Voltage Entries | 5 V and 5 V to 7.3 V |
| Operating Current | 40 mA |
| 動作温度 | -20 C to +75 C |
| インターフェースタイプ | Serial |
| Control Interface | 2-wire bass and treble control |
| パッケージ | 80-QFP (20 mm x 14 mm) |
| Package Family | QFP family, surface mount |
| 実装タイプ | Surface mount |
| Manufacturer | ROHM Semiconductor |
BD3816K1 qfp family, surface mount ピン配置ガイド
BD3816K1 (qfp family, surface mount 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: BD3816K1.
詳細は データシート をご参照ください。
主な用途
BD3816K1 の用途: 6 件s: Home-Theater Audio Processing, Multi-Zone Amplifier System, Car Audio Head Unit, Active Speaker Crossover, Surround-Sound Processor, Audio Receiver Main Board.
Home-Theater Audio Processing
The BD3816K1 fits a home-theater signal-processing stage because the verified distributor data identifies a 7-channel audio signal processor with bass and treble control. It can be positioned ahead of power amplifiers to provide centralized surround-channel routing and tone adjustment for a main channel group and subwoofer. According to the supplied data, the device supports a 2-wire bass and treble interface and uses an 80-QFP package. The implementation should preserve a low-noise analog ground path, place supply bypassing near the package, and confirm the actual channel topology against the datasheet before assigning amplifier inputs.
Multi-Zone Amplifier System
The BD3816K1 is suitable for a multi-zone amplifier system requiring centralized processing of several audio channels. Its verified seven-channel designation offers a practical match for systems that distribute surround, front, and subwoofer signals through separate amplifier channels, while the documented bass and treble controls provide system-level tone management. According to the supplied distributor records, the control connection is a 2-wire interface and the package is 80-QFP (20x14). Designers must verify routing, gain structure, channel enable behavior, and whether separate control lines are required for individual zones.
Car Audio Head Unit
The BD3816K1 can be evaluated for a car-audio head unit or amplified-speaker module that needs multichannel selection and tone processing. The verified 7-channel description is relevant to a typical multi-speaker cabin, and the listed -20 C to +75 C operating range covers many ambient conditions. According to the supplied GlobalSpec data, operating current is listed as 40 mA, but that figure should not be treated as a complete vehicle-rail power budget. Automotive suitability also requires confirmation of transient protection, voltage tolerance, electromagnetic compatibility, and AEC-Q100 status.
Active Speaker Crossover
The BD3816K1 may fit an active speaker or multichannel crossover design where bass, treble, and channel routing must be coordinated before separate power-amplifier stages. Its verified bass and treble functions and seven-channel architecture provide a basis for dividing or conditioning signals across multiple driver bands or zones. According to the verified Mouser listing, tone control uses a two-wire interface. However, crossover slope, phase, gain, and frequency assignments cannot be inferred from the supplied data, so the actual signal path must be confirmed from the manufacturer datasheet before finalizing filter values.
Surround-Sound Processor
The BD3816K1 is applicable to a dedicated surround-sound processor because the verified distributor listing describes it as a 7-channel and 6.1-channel sound processor. This architecture is relevant to systems combining main surround channels with a dedicated low-frequency or center channel. According to the available data, the device includes bass and treble adjustment through a 2-wire control connection. Board-level implementation should maintain short analog input and output routes, isolate switching supply noise, and use the verified operating-temperature limit of -20 C to +75 C as an initial environmental boundary.
Audio Receiver Main Board
The BD3816K1 can be integrated into an audio receiver main board to centralize multichannel selection and tone adjustment ahead of output amplifiers. The verified seven-channel capability aligns with the routing demands of a typical surround receiver, while the 80-QFP (20x14 mm) package provides a defined board footprint. According to the supplied records, control is serial and includes 2-wire bass and treble functions. Engineering validation should include the controller command protocol, input sensitivity, output loading, channel mute behavior, and thermal rise in the sealed receiver chassis.
エンジニアリング参考データ: BD3816K1 — 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 |
|---|---|
| Package | 80-QFP (20 mm x 14 mm) |
| Brand | ROHM Semiconductor |
| Product Type | Audio special-purpose integrated circuit |
| Audio Channels | 7 channels |
| Signal Configuration | 6.1-channel sound processor |
| Supply Voltage | 10 V to 14.6 V per Mouser; conflicting 5 V and 5 V to 7.3 V entries per GlobalSpec |
| Operating Current | 40 mA |
| Operating Temperature | -20 C to +75 C |
| Interface Type | Serial |
| Tone Controls | 2-wire bass and treble control |
主な差別化要因
- Verified seven-channel processing architecture （vs BD3816K1_10)
- Integrated bass and treble control （vs Generic discrete tone-control network)
- Integrated multichannel routing in a defined package （vs Discrete multichannel analog network)
設計ノート
Confirm the exact 80-QFP land pattern, pin-one location, and exposed-pad treatment from the ROHM datasheet before PCB release. Place input, output, and supply bypass connections close to their associated pins, and provide a low-impedance ground plane. The supplied search results do not include a verified pin table, so do not infer analog, digital, or power assignments from the QFP pin count alone.
Keep the seven audio paths short and symmetric, separate sensitive audio routing from the 2-wire control traces where practical, and maintain a continuous ground reference beneath the analog section. The verified data identifies a serial, 2-wire bass and treble interface but does not publish logic thresholds or timing. Validate the controller waveform, pull components, and channel-settling behavior on hardware before production.
Do not finalize the supply rail from the distributor snippets alone. The verified Mouser result lists 10 V to 14.6 V, while the verified GlobalSpec result lists 5 V and 5 V to 7.3 V entries. The official datasheet must resolve this conflict. After confirmation, size the regulator for the verified current limit, specify local high-frequency bypass capacitance, and include adequate startup and ripple margins for the audio load.
Do not treat the BD3816K1 as a power amplifier or loudspeaker driver. It is an audio signal processor, so downstream power amplifiers, output filtering, and appropriate protection remain necessary. Likewise, do not assume that similarly named sound processors are drop-in compatible: channel routing, serial protocol, electrical limits, and the 80-pin assignments must all be verified before substitution.
コンプライアンス情報
The supplied web results do not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for BD3816K1. Lifecycle status is also not explicitly stated and is therefore recorded as unknown.
