WM8947ECS/R Stereo Low-Power Audio Codec | Cirrus Logic
MPN: WM8947ECS/R ✓ نشطWM8947ECS/R نظرة عامة
An audio codec is an interface IC that converts between digital audio data and analog microphone, line, or headphone signals. In the product hierarchy, a codec belongs to an audio interface IC, an interface IC, and ultimately the broader semiconductor category. This conversion function allows a host processor to play and capture audio while the codec handles the analog signal path, digital conversion, and associated filtering. The WM8947ECS/R is specifically identified by Mouser as a stereo low-power codec, making it relevant to portable and embedded multimedia equipment.
The verified listings provide several procurement-level advantages: DigiKey classifies the WM8947ECS/R under codecs and interfaces, Mouser describes it as a stereo low-power codec, and LCSC lists the part as in stock. JLCPCB identifies the device as RoHS-compliant, while Wolfchip reported 23,560 pieces in stock on 2026-10-14. These facts support initial sourcing and compatibility work, but they do not replace verification of the electrical limits, exposed-ball assignments, thermal constraints, or supported digital audio interfaces.
The part's principal engineering value is its combination of stereo codec functionality and a compact 25-WCSP implementation. WCSP construction can reduce board area compared with larger leaded or QFN packages, which is valuable in mobile and wearable products. That space advantage also makes correct PCB layout essential. Fine-pitch balls, a limited exposed-ball count, potential thermal-via requirements, and difficult visual inspection after assembly can complicate rework and signal-integrity implementation. Designers should obtain the official land-pattern and ball-listing information rather than infer connections from distributor pinout diagrams.
Typical WM8947ECS/R applications include portable media players, smartphone accessories, compact audio accessories, wearable audio devices, and embedded multimedia systems. In each case, the codec would sit between a digital audio host and analog microphones, headphones, speakers, or line-level circuitry. Suitable companion components can include audio amplifiers, headphone drivers, microphones, and host-interface devices, but the exact companion choice depends on the power rails, grounding strategy, and acoustic architecture specified by the manufacturer.
Before committing to a PCB revision, confirm the supported audio formats, master and slave clock arrangements, sample rates, microphone bias requirements, headphone and speaker outputs, digital and analog supply voltages, and permitted startup sequences in the official WM8947 datasheet. Also verify whether the WCSP has an exposed ground or thermal pad and which balls may be left unconnected. The supplied data does not establish a complete pinout, so no pin assignments are asserted on this page.
This page consolidates verified distributor classification, current pricing, package information, stock observations, compliance evidence, and replacement-status findings for the WM8947ECS/R. It also distinguishes confirmed facts from parameters that remain unavailable in the supplied records, helping engineers make an initial sourcing decision without mistaking incomplete listings for a complete design specification.
بدائل مباشرة لـ WM8947ECS/R — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
لا تتوفر بدائل متوافقة تمامًا لهذا المنتج.
اطلب بدائلWM8947ECS/R الحدود القصوى والخصائص الكهربائية
| Product Type | Stereo low-power audio codec IC |
| Manufacturer | Cirrus Logic |
| Manufacturer Part Number | WM8947ECS/R |
| العلبة | 25-ball WCSP |
| Device Category | Codecs / Interface ICs |
| Audio Configuration | Stereo |
| Power Class | Low-power audio codec |
| نوع التركيب | Surface mount |
| Quantity-1 Price | $4.6743 as of 2026-10-29 |
| LCSC Stock Status | In stock |
| Wolfchip Reported Stock | 23,560 pieces as of 2026-10-14 |
| حالة RoHS | RoHS-compliant |
دليل تكوين أطراف WM8947ECS/R 25-ball wcsp
تكوين الأطراف لـ WM8947ECS/R (حزمة 25-ball wcsp). تتضمن هذه الدائرة المتكاملة الرقمية GPIO وواجهات الاتصال (UART وSPI وI2C) وأطراف الطاقة. راجع ورقة بيانات الشركة المصنعة لوظائف الأطراف البديلة وخيارات التكوين. ضرورية لتصميم الأنظمة المدمجة وتخطيط PCB.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ WM8947ECS/R.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
WM8947ECS/R مناسب لـ 6 التطبيقs: Portable Media Player, Smartphone Accessory Audio, Wearable Audio Device, Compact Audio Accessory, Embedded Multimedia System, USB Audio Adapter.
Portable Media Player
The WM8947ECS/R fits a portable media player because it is verified as a stereo low-power codec in a compact 25-ball WCSP package. Such a package helps limit board area when the design must combine digital audio conversion with microphone, headphone, speaker, or line-level connections. The verified LCSC price of $4.6743 as of 2026-10-29 and reported distributor stock make initial sourcing practical. Before layout, however, verify the supported digital audio interface, sample rates, clocking scheme, supply rails, and analog output architecture in the manufacturer datasheet. The fine-pitch package also requires a manufacturer land pattern, careful escape routing, and thermal-via planning if the WCSP exposes a ground pad.
موصى به
Smartphone Accessory Audio
The WM8947ECS/R is a plausible candidate for a smartphone accessory that must add compact stereo audio capture or playback. Its verified stereo low-power codec classification aligns with portable multimedia use, while the 25-ball WCSP format can conserve PCB area compared with larger packages. The design should establish whether the accessory uses microphone, line, headphone, or speaker connections and whether the host supplies a compatible digital audio interface. Because the supplied records omit supply-voltage, clock, bias, and output specifications, those details must come directly from the Cirrus Logic datasheet. Layout should also preserve quiet return paths and place required bypass components immediately beside their associated supply balls.
موصى به
Wearable Audio Device
A wearable audio device can benefit from the WM8947ECS/R when board area is constrained and the required signal path is a low-power stereo codec. The 25-ball WCSP package supports dense integration, but the package's fine pitch also makes assembly yield, stencil design, inspection, and rework important considerations. The supplied distributor records do not provide quiescent current, playback efficiency, or thermal data, so battery-life suitability cannot be concluded from the word low-power alone. Designers should verify operating voltages, clock requirements, supported formats, and microphone-bias details in the official documentation. A low-noise, tightly decoupled layout is advisable once the required analog paths and ground reference are confirmed.
موصى به
Compact Audio Accessory
The WM8947ECS/R is suitable for evaluation in compact stereo audio accessories where an integrated codec can reduce the number of separate analog and digital conversion components. Its verified WCSP package can help fit a converter, interface, and required connections into a small connector or control accessory. The key design check is whether the device's supported inputs and outputs match the intended microphone, line, headphone, or speaker architecture. Since the supplied evidence does not include input impedance, output drive, clocking, or supply data, engineers must avoid selecting peripheral components until the official electrical specification is confirmed. The PCB should follow the certified ball map and use a short, symmetrical analog layout where possible.
موصى به
Embedded Multimedia System
The WM8947ECS/R can be evaluated for an embedded multimedia system that requires stereo audio conversion in a compact surface-mount footprint. Its verified classification as an interface and codec device supports use beside a host processor, DSP, or communications controller. The decisive checks are interface-format compatibility, master versus slave clock operation, supported sample rates, and sequencing across the codec and host. None of those electrical details appear in the supplied records, so the manufacturer datasheet is required before schematic capture. For implementation, plan decoupling close to the relevant WCSP balls, provide a continuous ground reference, isolate noisy digital routes from analog inputs, and confirm the package's exposed-ball requirements before release.
موصى به
USB Audio Adapter
The WM8947ECS/R may fit a USB audio adapter after its digital interface, clocking method, and supported audio formats are confirmed against a USB audio controller. A low-power stereo codec in 25-ball WCSP can support a compact adapter that converts host data into analog headphone, line, or microphone signals. The verified $4.6743 price as of 2026-10-29 provides an initial component-cost reference, but total adapter cost also depends on the USB controller, amplifier, connector, and required passive network. Keep analog input and output routing away from USB and switching-converter regions, and follow the official WCSP land pattern. No drop-in substitute should be selected without a verified ball map and electrical comparison.
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ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ WM8947ECS/R — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج |
|---|---|
| Brand | Cirrus Logic |
| Package | 25-ball WCSP |
| Device Type | Stereo low-power audio codec IC |
| Product Category | Interface ICs > Audio Codecs |
| Quantity-1 Listed Price | $4.6743 as of 2026-10-29 |
| Stock Status | In stock at LCSC; ships today at DigiKey |
| RoHS Status | RoHS-compliant |
| Supply Voltage Range | Not verified in supplied data |
| Digital Audio Interface | Not verified in supplied data |
| Supported Sampling Rates | Not verified in supplied data |
أبرز الفروقات
- Verified stereo low-power codec classification (مقابلNo verified drop-in alternative was supplied)
- Compact 25-ball WCSP implementation (مقابلNo verified drop-in alternative was supplied)
- Point-in-time procurement availability (مقابلNo verified drop-in alternative was supplied)
- Transparent lowest listed unit price (مقابلNo verified drop-in alternative was supplied)
ملاحظات التصميم
Do not begin the footprint until the official WM8947ECS/R WCSP ball map and recommended land pattern have been obtained. The supplied evidence verifies a 25-ball WCSP but does not identify individual balls, exposed ground balls, or allowable keepout regions. Preserve the manufacturer's pad, mask, paste, and solder-mask geometry, and verify compatibility with the PCB manufacturer's 25-ball WCSP process before release.
Plan short analog routes for microphone, line, or headphone signals after the actual ball assignments are confirmed. Keep sensitive inputs away from digital clock and serial-data paths, maintain a continuous ground reference beneath the device, and route returns without sharing narrow paths with high-current output or switching-supply currents. The supplied records do not identify the analog pins, so no specific ball-to-net layout can be asserted safely.
Confirm the analog and digital supply ranges, permitted sequencing, and bypass requirements from the manufacturer datasheet before placing decoupling capacitors. Use the manufacturer's recommended capacitance, voltage rating, and placement directly at the relevant supply balls. Because no supply-voltage values were supplied, selecting capacitors or a regulator from generic guidance could cause noise, instability, or damage.
Do not treat a shared WCSP package or the description stereo low-power codec as proof of drop-in compatibility. A valid replacement must match the ball map, exposed-pad arrangement, supply rails, digital interface, clocking, audio paths, and performance limits. The supplied cross-reference search produced no confirmed substitute, so use an engineering cross-check rather than selecting solely by package count or distributor similarity.
معلومات الامتثال
The verified JLCPCB listing identifies the WM8947ECS/R as RoHS-compliant. No verified REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations were supplied. AEC-Q100 is shown as not applicable because the available evidence does not identify an automotive-qualified variant.
