WM8952ECS/RV - 24-Bit Mono Audio ADC | Cirrus Logic
MPN: WM8952ECS/RV ✓ AktifWM8952ECS/RV Ringkasan
An audio ADC is a mixed-signal semiconductor that converts an analog microphone or line-level waveform into a digital audio stream. The WM8952ECS/RV belongs to the audio ADC hierarchy, combining an analog-to-digital converter, programmable gain stage, microphone preamplifier, and digital filters into one package. This integration reduces the number of discrete signal-conditioning components required near a microphone capsule or audio input while preserving a standard digital interface for downstream processing.
The converter provides 24-bit resolution and supports sampling rates extending to 48 kS/s. Its signal path includes a selectable high-pass filter and four fully programmable notch filters. A mixed-signal automatic level control function with noise gate helps maintain usable recording levels, and the PGA gain can be read back while ALC operation is active. These features are useful in microphone arrays, voice-capture products, and compact consumer audio equipment where environmental noise and changing source levels require active signal conditioning.
The digital audio interface supports I2S as well as A-law and μ-law formats. I2S provides a framed, clocked connection to a digital audio processor, host controller, or audio codec, while the companded formats support legacy telephony and voice applications. The manufacturer datasheet describes the device as using an advanced sigma-delta converter design to provide high-quality audio across its 8 kS/s to 48 kS/s operating range.
Typical uses include digital voice recorders, headset electronics, mobile audio accessories, microphone preamp modules, and compact industrial monitoring equipment. Its 28-W-CSP footprint is particularly useful when board area is restricted, although careful escape routing and stable analog supply design remain essential because the device combines sensitive analog input circuitry with a high-speed digital interface.
Designers should treat the microphone input, digital clock lines, and supply connections as separate critical paths. Keep analog traces short, use a clean low-noise supply, and follow the manufacturer’s recommended application circuit and component values. The 1.71 V to 3.6 V operating range also requires the host system to remain compatible with the converter’s supply and I2S logic levels.
This product page combines the manufacturer specifications, verified distributor listings, package information, application guidance, and replacement analysis for engineers evaluating the WM8952ECS/RV. It also distinguishes documented device functions from specifications that require confirmation from the full datasheet, helping designers plan microphone-front-end integration, interface compatibility, and board-level sourcing.
Pilihan pengganti yang segera untuk WM8952ECS/RV — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Tiada pilihan pengganti yang segera untuk produk ini.
Minta AlternatifWM8952ECS/RV Penilaian maksimum & Ciri-ciri Elektrik
| Device Type | Mono audio ADC with microphone preamplifier and DSP |
| Converter Resolution | 24 bit |
| Maximum Sample Rate | 48 kS/s |
| Sampling Rate Range | 8 kS/s to 48 kS/s |
| Digital Audio Interface | I2S, A-law, and μ-law |
| Converter Architecture | Advanced sigma-delta |
| Integrated Microphone Preamplifier | Yes |
| Programmable Notch Filters | 4 |
| High-Pass Filter | Selectable |
| Automatic Level Control | Mixed-signal ALC with noise gate |
| PGA Gain Readback | Supported during ALC operation |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Gambaran Suhu Operasi | -25°C to +85°C |
| Kemasan | 28-W-CSP |
| Package Dimensions | 2.59 mm x 2.50 mm |
| Jenis Pemasangan | Surface mount |
Panduan Konfigurasi Pin WM8952ECS/RV 2.59 mm x 2.50 mm
Konfigurasi pin untuk WM8952ECS/RV (2.59 mm x 2.50 mm pakai). Komponen analog ini mempunyai pin masukan, keluaran, dan kuasa. Rujuk dokumen pengeluar untuk konfigurasi pengecualian, pemulihan, dan pin aktifkan. Ideal untuk pengawasan isyarat dan litar pengukur.
Tiada data garisan pin yang diperoleh untuk WM8952ECS/RV.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
WM8952ECS/RV patut untuk 6 aplikasis: Digital Voice Recorder, Headset and Headphone Microphone Module, Mobile Audio Accessory, Industrial Voice Monitoring, Microphone Preamplifier Module, Compact Audio Sensor Node.
Digital Voice Recorder
The WM8952ECS/RV is suited to a compact digital voice recorder because it combines a 24-bit mono ADC with an integrated microphone preamplifier, a selectable high-pass filter, four programmable notch filters, and automatic level control with a noise gate. Its 8 kS/s-to-48 kS/s range covers common voice-recording rates, while the I2S interface can transfer audio data to a host processor or digital audio codec. The 28-W-CSP package also limits board area near a microphone capsule. Designers should tune the ALC attack and release behavior to prevent speech pumping, program the notch filters for expected mechanical or tonal interference, and follow the manufacturer’s analog-input and clock-layout guidance.
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Headset and Headphone Microphone Module
A headset or headphone microphone module benefits from the WM8952ECS/RV’s integrated microphone preamplifier and mono conversion path. The device supports 24-bit conversion from 8 kS/s to 48 kS/s, allowing a design to select a rate appropriate for speech, wideband voice, or higher-quality capture. Its selectable high-pass filter helps reject low-frequency handling noise, while the ALC and noise-gate functions support variable speech levels. The I2S output can connect to a headset audio controller, while A-law and μ-law options serve compatible voice systems. Layout must keep the analog microphone path compact and isolate high-speed digital clocking from the sensitive input node.
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Mobile Audio Accessory
The WM8952ECS/RV fits mobile audio accessories where low supply voltage, compact area, and direct digital microphone acquisition are priorities. Its 1.71 V-to-3.6 V operating range is compatible with low-voltage embedded systems, while the 28-W-CSP footprint preserves board space around a microphone and connector. The mono ADC is appropriate for a single headset, headset, or compact accessory microphone, and its digital filters allow system-level control of rumble and narrowband interference. A host processor can use I2S for normal audio transport or A-law and μ-law for voice-oriented designs. Power and signal-integrity planning remain essential because the microphone preamplifier and digital interface share a compact mixed-signal package.
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Industrial Voice Monitoring
The WM8952ECS/RV can serve as the capture front end in an industrial voice-monitoring module that records a single audio channel. The selectable high-pass filter and four programmable notch filters help reject mechanical vibration or persistent equipment tones, while automatic level control with a noise gate can reduce the impact of changing ambient levels. Sampling rates from 8 kS/s to 48 kS/s allow the system to trade bandwidth and data rate for monitoring requirements. The I2S interface is suitable for connection to an embedded processor, while the compact 28-W-CSP package supports densely populated industrial controls. Validation should include acoustic noise, microphone biasing, input range, and long-duration thermal behavior.
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Microphone Preamplifier Module
For a dedicated microphone preamplifier module, the WM8952ECS/RV combines analog gain control and conversion without requiring a separate standalone ADC in the signal chain. Programmable notch filters and the selectable high-pass filter provide useful conditioning before digital transmission, and ALC can maintain recording level when the source volume varies. The compact package supports modules with limited connector and component space. System integrators should confirm the microphone sensitivity, bias requirements, input clipping level, and the device’s recommended analog network. The 24-bit resolution does not remove the need for proper analog gain staging or low-noise supply design.
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Compact Audio Sensor Node
A compact audio sensor node can use the WM8952ECS/RV to acquire one analog sound channel for classification or event detection. The low-voltage supply range and small 28-W-CSP footprint are useful in powered sensor nodes with limited board area, while the digital filters can suppress predictable unwanted bands before data reaches a microcontroller. The 8 kS/s lower sampling rate can reduce data volume for speech-event systems, whereas the 48 kS/s maximum provides wider audio bandwidth when required. Choose the operating rate, ALC behavior, and interface format together so that the host’s processing capacity, storage rate, and clocking assumptions remain aligned with the converter configuration.
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Data referensi kejuruteraan untuk WM8952ECS/RV — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Before committing, verify the exact pin arrangement, power architecture, clocking scheme, and analog input network against the manufacturer datasheet. Do not treat another mono ADC as a drop-in substitute unless it has the same package geometry, pin functions, electrical limits, interface behavior, and acceptable signal-path performance. No independently verified pin-compatible alternative was established for the WM8952ECS/RV, so any redesign should be treated as an engineering change rather than a simple component substitution.
Perbandingan dengan Gantian
| Parametr | Produk Ini |
|---|---|
| Device Type | Mono audio ADC with microphone preamplifier and DSP |
| Converter Resolution | 24 bit |
| Sampling Rate Range | 8 kS/s to 48 kS/s |
| Digital Audio Interface | I2S, A-law, and μ-law |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Programmable Notch Filters | 4 |
| Automatic Level Control | Mixed-signal ALC with noise gate |
| Package | 28-W-CSP (2.59 mm x 2.50 mm) |
| Brand | Cirrus Logic |
Catatan Desain
Place the WM8952ECS/RV close to the microphone connector or capsule so the analog input path remains short. Keep the microphone bias, input network, and device ground connection away from high-speed clock and data traces. Use a continuous ground reference beneath and around the analog section, and route the I2S interface toward the host processor without sharing sensitive input segments. The manufacturer application circuit and package land pattern should govern final pad and via placement.
Design the 1.71 V-to-3.6 V supply rail so it remains stable while the sigma-delta converter and digital interface operate. Decouple the supply pins with the capacitance values and placement specified by the manufacturer datasheet, and avoid routing the sensitive analog return path through switching-converter current loops. If microphone bias is generated on the board, account for its loading and ripple at the ADC input rather than assuming the bias supply is noiseless.
Provide clean, deterministic audio and clock signals to the converter. Keep I2S clock, data, and frame lines routed away from the microphone input and analog ground references, and use the shortest practical digital connection. The audio interface supports I2S, A-law, and μ-law, but each format has different framing expectations; confirm the selected mode, clock polarity, and data alignment in the manufacturer’s digital-interface documentation before firmware or host-interface integration.
Do not select ALC and notch-filter settings solely to maximize apparent signal level. Excessive gain can clip the analog input, while aggressive ALC release times can create audible pumping. Program the high-pass filter for the useful speech band, use the four notch filters for measured interference rather than broad attenuation, and verify the PGA gain readback during normal operating conditions. Record-level validation should include quiet speech, loud speech, and the expected acoustic noise floor.
Maklumat Kesediaan
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status was established for WM8952ECS/RV. The component is listed as a mono audio ADC for surface-mount applications, but its stated -25°C to +85°C operating range does not by itself establish AEC-Q100 qualification.
