BD3429K-E2 Audio Channel IC, 44-Pin QFP | ROHM Semiconductor
MPN： BD3429K-E2 ✓ 啟用中BD3429K-E2 概覽
An audio-channel IC is a specialized integrated circuit used to receive, decode, convert, reproduce, or route audio signals within an electronic system. Its broader hierarchy is audio IC → audio-channel IC → Audio Special Purpose IC → semiconductor. This classification places the BD3429K-E2 in the signal-processing portion of a multimedia system rather than in a generic operational amplifier or power-management category.
The verified listing confirms three defining implementation facts: the BD3429K-E2 belongs to ROHM Semiconductor, its production status is reported as Active, and its enclosure is a QFP with 44 pins. One distributor record further identifies the physical format as 44-LQFP. The supplied data does not expose the complete pin map, exposed-pad arrangement, electrical limits, or analog performance, so engineers should confirm those items in the manufacturer datasheet before schematic capture or PCB release.
The -E2 ordering suffix is present in the exact manufacturer part number used by distributor databases. Its meaning cannot be inferred from the supplied excerpts because no ordering-information table was provided. Likewise, the data does not establish whether the suffix denotes a temperature grade, packing configuration, production revision, or another ordering attribute. The base family member BD3429K appears in the verified listings, but equivalence of its ordering codes cannot be confirmed from the supplied text.
The most plausible application areas are embedded audio systems, consumer-audio equipment, and digital audio processing platforms where a dedicated audio-channel IC is required. However, the verified excerpts do not name specific end applications or reference designs. Before selecting this device, engineers should verify its supported sample rates, codec interfaces, analog inputs and outputs, control interface, clocking, and supply requirements against the complete manufacturer datasheet.
The principal PCB-design consideration is that the 44-pin QFP requires fine-pitch routing and careful assembly planning. Because pin names, dimensions, pitch, and the exposed-pad configuration are unavailable in the verified excerpts, land-pattern selection should be based on the official package drawing rather than inferred from the generic “QFP44” description. Pin and solder-mask designators should also be checked against the exact -E2 ordering code.
This page consolidates the verified distributor and Octopart listings, distinguishes known device facts from missing technical data, and avoids presenting speculative electrical specifications or unverified drop-in replacements as confirmed engineering information. It also records the supplied datasheet, distributor, and comparison-tool sources for engineers who need to complete footprint, pinout, pricing, and lifecycle verification.
直接替換替代品，適用於 BD3429K-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BD3429K-E2 最大額定值與電氣特性
| Device Type | Audio Channel IC |
| Manufacturer | ROHM Semiconductor |
| Production Status | Active |
| Package Type | QFP |
| 腳位數 | 44 pins |
| Detailed Package Designation | 44-LQFP |
| 安裝類型 | Surface Mount |
| PCB Integration | QFP package designed for PCB integration |
| Device Category | Audio Special Purpose IC |
| Distributor Product Classification | Audio Channel |
| Ordering Suffix | -E2 |
| Base Family MPN | BD3429K |
| Supply Reference Quantity | 1000 pcs per referenced stock listing |
BD3429K-E2 44-lqfp 腳位配置指南
BD3429K-E2（44-lqfp 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： BD3429K-E2.
請參閱 資料表 以查看完整腳位配置。
典型應用
BD3429K-E2 適用於 6 應用s: Embedded Audio Processing, Consumer Audio Equipment, Digital Audio Interface, Audio Recording and Conversion, Multimedia Control Platform, Industrial Audio Equipment.
Embedded Audio Processing
The BD3429K-E2 can be considered for an embedded audio-processing board because the verified distributor data identifies it as an Audio Channel IC in a 44-pin QFP package. Its role would be to implement the device’s documented audio function within a larger signal chain, rather than simply amplify an analog waveform. Before selecting it, engineers must confirm the supported digital or analog interface, required clocking, supply rails, and available logic levels from the manufacturer datasheet. The 44-pin surface-mount format supports compact board integration, but exact footprint dimensions and pin functions are not included in the supplied excerpts.
推薦
Consumer Audio Equipment
For consumer-audio equipment, the BD3429K-E2 is relevant where a dedicated Audio Special Purpose IC is required and a 44-pin QFP assembly is acceptable. The verified listing does not specify headphone outputs, speaker-drive capability, codec functions, or supported sample rates, so the device should not be advertised as an amplifier or codec until those functions are confirmed. Engineers should review signal-path requirements, analog performance, power consumption, and thermal exposure against the exact datasheet before selecting this part for a new product.
推薦
Digital Audio Interface
The BD3429K-E2 may suit a digital audio interface if its manufacturer documentation confirms the required data format, clocking arrangement, and channel organization. Its verified classification as an Audio Channel IC and 44-pin QFP package make it a plausible candidate for a mixed-signal board, but the supplied excerpts contain no I2S, left-justified, PCM, or other interface details. Selection must therefore depend on the exact pinout and timing specification. The design should also verify voltage compatibility, isolation requirements, and the correct decoupling network for each internal supply rail.
推薦
Audio Recording and Conversion
An audio recording or conversion subsystem is another possible application area because the BD3429K-E2 is explicitly categorized as an Audio Channel device. Its suitability depends on whether the documented architecture supports the required analog inputs, digital streams, sample rates, and output format. No signal-to-noise ratio, total harmonic distortion, conversion resolution, or supported clock rate appears in the verified excerpts. Consequently, a system decision requires the complete electrical-characteristics table rather than inference from the distributor category label.
推薦
Multimedia Control Platform
The BD3429K-E2 may be evaluated for a multimedia platform that needs a dedicated audio-channel function alongside control, memory, and interface circuitry. Its 44-pin QFP package provides a defined integration point, but the supplied data does not reveal host-control protocols, addressable registers, interrupt behavior, or power-sequencing requirements. Engineers should compare those functions with the system controller and memory topology. They should also verify that the exact -E2 order code has the intended lifecycle, grade, and packing before incorporating it into a long-lived platform.
推薦
Industrial Audio Equipment
Industrial audio equipment can be assessed as an application only after confirming the BD3429K-E2’s operating-temperature rating, supply tolerance, EMC behavior, and lifecycle commitment. The verified data reports the part as Active and identifies a 44-pin QFP package, but it does not provide industrial qualification, ESD ratings, or reliability-test results. For factory monitoring, intercom, or instrumentation systems, engineers should obtain the current manufacturer reliability documentation and use the published package drawing for PCB implementation.
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推薦產品摘要
工程參考資料，適用於 BD3429K-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 | QFP with 44 pins; one distributor record identifies 44-LQFP |
| Brand | ROHM Semiconductor |
| Device Category | Audio Special Purpose IC / Audio Channel |
| Lifecycle Status | Active, as reported by the verified Jotrin listing |
| Pin Count | 44 pins |
| Mounting Type | Surface Mount |
主要差異化特點
- Verified exact 44-pin QFP integration (對比BD3429K)
- Audio Special Purpose classification (對比BD3806FS-E2)
- Reported production availability (對比BD3809FS-E2)
設計說明
Do not create the land pattern from the generic QFP44 description alone. The verified excerpts establish 44 pins but do not provide body size, pitch, pin numbering, or exposed-pad information. Download the package drawing associated with the exact BD3429K-E2 ordering code, then reconcile pad dimensions, solder mask, paste, and courtyard against the assembler’s capability. Also check whether the JEDOT/E2 suffix changes only ordering metadata or the physical package.
Avoid selecting a substitute from the related names BD3806FS-E2 or BD3809FS-E2 without a pin-by-pin comparison. The supplied comparison pages establish only that comparison pages exist; they do not demonstrate the same footprint, supply pins, signal functions, or electrical ratings. A function-category match is insufficient for an audio IC because an incompatible clock, data interface, or analog signal assignment can prevent operation or damage surrounding circuitry.
Confirm all supply domains, ground references, sequencing, and permissible voltage levels from the manufacturer datasheet before schematic capture. The verified excerpts contain no operating-voltage range or pinout, so a generic 3.3 V or 5 V assumption would be unsafe. After identifying the pins, place required bypass capacitors at their specified locations, preserve quiet return paths for audio signals, and validate startup and shutdown behavior with the complete power sequence.
Separate digital data, clock, and analog audio routing according to the manufacturer reference layout once available. Keep sensitive analog traces away from switching nodes and high-current return paths, use a continuous ground reference where appropriate, and control return currents beneath their associated signals. Because the supplied data does not include a reference design or complete pin map, these measures are general safeguards rather than substitutes for the manufacturer layout guidance.
合規資訊
The supplied excerpts contain no explicit compliance declarations for the BD3429K-E2. Compliance status must be confirmed using the current ROHM product page and supporting declarations.
