BD3816K1 - 7-Channel Audio Signal Processor | ROHM Semiconductor
料号： BD3816K1 ✗ 停产BD3816K1 概述
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.
直接替换替代料： BD3816K1 ——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BD3816K1 最大额定值与电气特性
| Product Type | Audio special-purpose integrated circuit |
| 功能 | 7-channel audio signal processor |
| Channel Configuration | 7 channels; described as 6.1-channel sound processing |
| 电源电压 | 10 V to 14.6 V |
| Additional Supply Voltage Entries | 5 V and 5 V to 7.3 V |
| Operating Current | 40 mA |
| 工作温度 | -20 C to +75 C |
| 接口类型 | Serial |
| Control Interface | 2-wire bass and treble control |
| 封装 | 80-QFP (20 mm x 14 mm) |
| Package Family | QFP family, surface mount |
| 安装类型 | Surface mount |
| Manufacturer | ROHM Semiconductor |
BD3816K1 qfp family, surface mount 引脚配置指南
BD3816K1（qfp family, surface mount 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： BD3816K1.
请参阅 数据手册 以查看完整引脚配置。
典型应用
BD3816K1 适用于 6 应用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.
工程参考数据： BD3816K1 ——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 | 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 |
关键差异点
- Verified seven-channel processing architecture （对比 BD3816K1_10)
- Integrated bass and treble control （对比 Generic discrete tone-control network)
- Integrated multichannel routing in a defined package （对比 Discrete multichannel analog network)
设计说明
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.
合规信息
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.
