WM8958ECS/R - 24-Bit Stereo Audio Codec | Cirrus Logic
N.º de pieza: WM8958ECS/R ✗ Fin de vidaWM8958ECS/R Descripción general
An audio codec is a mixed-signal semiconductor that converts between digital audio data and analog microphone, speaker, and headphone signals. It belongs to the codec and audio-interface hierarchy, combines an audio codec, integrated analog-to-digital converters and digital-to-analog converters, and ultimately falls under mixed-signal and signal-processing semiconductors. This integration reduces external components and board area in portable multimedia systems.
The WM8958 is designed for smartphones and other portable multimedia devices. Key features include ultra-low-power operation, 24-bit audio conversion, stereo full-duplex asynchronous sample-rate conversion, multiple digital audio channels, integrated Class D/AB speaker amplification, and integrated Class W headphone amplification. It requires two external voltage supplies, while other internal supply rails are generated by integrated low-dropout regulators.
Its architecture places an audio hub, converters, digital interfaces, and output-driver functions in one device. The digital side supports I2S and PCM formats, while the analog conversion section supports two ADC inputs and four DAC outputs. The integrated speaker and headphone drivers reduce the need for separate output amplifiers, although external passive filtering, routing, and decoupling networks may still be required by the final circuit design.
Typical uses include smartphone and tablet audio hubs, portable media-player headsets, Bluetooth and wireless audio accessories, compact consumer-audio systems, and portable multimedia products. The device is especially relevant where low power, compactness, high-fidelity conversion, integrated headphone drive, and integrated stereo speaker drive are important design priorities.
Designers must verify the exact pin assignments, supported audio rates, clocking scheme, speaker-load limits, analog biasing, and decoupling requirements against the manufacturer datasheet before layout. The 4.5 mm by 4.3 mm W-CSP also demands careful escape routing, acoustic inspection, and assembly-process control; trace geometry, component placement, and thermal or power-distribution planning can materially affect audio performance.
This product record combines verified manufacturer and distributor information with package-level comparison, application guidance, and engineering-oriented design notes. It also distinguishes documented integrated features from unverified details, avoiding unsupported claims while helping engineers evaluate the WM8958ECS/R for portable audio designs.
Alternativas directas para WM8958ECS/R — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
No hay alternativas directas disponibles para este producto.
Solicitar alternativasWM8958ECS/R Valores máximos y características eléctricas
| Audio Codec Type | Stereo hi-fi audio codec with integrated speaker and headphone drivers |
| Audio Converter Resolution | 24 bit |
| ADC Channels | 2 channels |
| DAC Channels | 4 channels |
| Digital Audio Interface | I2S and PCM |
| Speaker Output Architecture | Stereo Class D/AB speaker driver |
| Headphone Output Architecture | Class W headphone driver |
| Sample-Rate Conversion | Stereo full-duplex asynchronous sample-rate conversion |
| External Supply Count | 2 voltage supplies |
| Internal Supply Generation | All other internal supply rails generated by integrated LDOs |
| Package Type | 72-pin W-CSP |
| Package Dimensions | 4.5 mm x 4.3 mm |
| Tipo de montaje | Surface mount |
| Primary Application | Smartphones and portable multimedia devices |
| Power Class | Ultra-low power |
Guía de configuración de pines de WM8958ECS/R 4.5 mm x 4.3 mm
Configuración de pines para WM8958ECS/R (encapsulado 4.5 mm x 4.3 mm). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para WM8958ECS/R.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
WM8958ECS/R es adecuado para 6 aplicacións: Smartphone Audio Hub, Bluetooth Headset, Portable Media Player, Tablet Audio System, Wireless Audio Accessory, Portable Speaker.
Smartphone Audio Hub
The WM8958ECS/R fits smartphone audio-hub designs because it combines 24-bit conversion, 2 ADC channels, 4 DAC channels, I2S and PCM interfaces, and integrated output drivers in a 4.5 mm by 4.3 mm 72-pin W-CSP. The manufacturer identifies smartphones as a primary target, and the device requires only two external voltage supplies because other rails are generated internally. Its integrated stereo Class D/AB speaker driver and Class W headphone driver can reduce external amplification, although the design must still accommodate datasheet-specified filtering, decoupling, clocking, and output-load constraints.
Recomendado
Bluetooth Headset
The WM8958ECS/R is suitable for a compact Bluetooth headset when low system power and integrated output stages are priorities. Its ultra-low-power hi-fi codec architecture, asynchronous stereo sample-rate conversion, and integrated Class W headphone driver can simplify a playback chain around a wireless audio SoC. The 24-bit I2S/PCM interface gives the headset controller a standard digital-audio connection, while the 72-pin W-CSP limits board area. Final headphone impedance, output power, noise, startup behavior, and EMI layout remain datasheet-dependent design checks.
Recomendado
Portable Media Player
A portable media player can use the WM8958ECS/R to consolidate digital-audio conversion and analog output amplification into one compact device. The integrated 2-ADC arrangement supports stereo microphone capture, while the 4-DAC configuration provides additional playback routing for headphones, speakers, or line-level destinations. Because the codec integrates Class D/AB speaker and Class W headphone drivers, a correctly designed implementation can reduce the number of external analog ICs. The 24-bit interface and asynchronous sample-rate conversion are useful when the source clock differs from the device's internal audio-rate domain.
Recomendado
Tablet Audio System
The WM8958ECS/R can support tablet audio when a compact multi-channel codec and integrated headphone and speaker stages are preferred over a collection of discrete converters and amplifiers. Its 2-ADC, 4-DAC arrangement provides several signal paths, and the I2S/PCM interface supports common embedded audio-controller formats. The two-supply architecture simplifies rail planning relative to a design requiring several external analog rails. Its 4.5 mm by 4.3 mm W-CSP footprint saves area, but assembly yield, acoustic performance, analog layout, and exposed-pad thermal management require careful validation.
Recomendado
Wireless Audio Accessory
The WM8958ECS/R is applicable to wireless audio accessories that receive digital PCM or I2S audio from a Bluetooth or other wireless controller. Its integrated speaker and headphone drivers reduce the number of analog stages needed after the wireless receiver, while asynchronous sample-rate conversion can ease clock-domain integration when source and playback rates differ. The ultra-low-power positioning is valuable for battery-powered accessories. Designers must still verify supported clock ratios, input-output latency, output-load limits, analog filter values, and RF-sensitive PCB partitioning before production use.
Recomendado
Portable Speaker
The WM8958ECS/R can serve as the audio hub in a compact portable speaker because it combines 24-bit conversion with an integrated stereo Class D/AB speaker driver. A system controller can supply I2S or PCM audio, while the codec handles analog-to-digital capture and digital-to-analog playback within one 72-pin W-CSP. This integration can shorten the analog signal path and reduce board area compared with separate converters and amplifiers. The enclosure, passive crossover, speaker impedance, thermal environment, and output filtering must be evaluated together because the verified data does not specify maximum output power or allowed speaker load.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para WM8958ECS/R — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Brand | Cirrus Logic |
| Package | 72-pin W-CSP, 4.5 mm x 4.3 mm |
| Audio Converter Resolution | 24 bit |
| ADC Channels | 2 channels |
| DAC Channels | 4 channels |
| Digital Audio Interfaces | I2S and PCM |
| Speaker Driver | Integrated stereo Class D/AB driver |
| Headphone Driver | Integrated Class W driver |
| Sample-Rate Conversion | Stereo full-duplex asynchronous conversion |
| External Supply Count | 2 voltage supplies |
| Lifecycle Status | Discontinued |
| Primary Application | Smartphones and portable multimedia devices |
Diferenciadores clave
- High codec integration in a compact package (frente a TLV320AIC3104)
- Integrated headphone and speaker output stages (frente a STA529)
- Asynchronous sample-rate conversion (frente a CS42L51)
Notas de diseño
Implement the WM8958ECS/R reference layout from the manufacturer datasheet rather than extrapolating from a generic 72-ball W-CSP footprint. Keep analog input and output routing short, separate noisy class-D outputs from microphone and clock paths, and provide continuous ground references under and around the device. The verified 4.5 mm by 4.3 mm package leaves little routing escape room, so component placement and ball-assignment review should occur before board release.
Use the two external supplies specified for the WM8958 and generate all other internal rails with its integrated LDOs as described by the manufacturer. Place bypass capacitors at the supply and ground balls using the datasheet's recommended values, voltage ratings, and placement. Validate startup, shutdown, and rail sequencing because the supplied excerpts do not specify supply voltage limits, capacitor values, or operating current.
Do not treat the cross-reference list as proof of drop-in compatibility. The TLV320AIC3104, STA529, and CS42L51 are identified as functional equivalents, but their package drawings, pin assignments, clock architecture, supply rails, and analog connectivity are not verified against the WM8958ECS/R's 72-pin W-CSP. Any substitution requires a new footprint comparison, schematic review, firmware or driver review, and board-level validation.
Route I2S or PCM data, master clocks, and data clocks as controlled-impedance digital signals with continuous return paths and no unnecessary stubs. Keep clock sources away from microphone inputs and speaker-driver outputs, and observe the datasheet's clocking and grounding guidance. The verified data confirms asynchronous sample-rate conversion but does not provide supported rates or timing margins, so those values must not be inferred from generic audio specifications.
Evaluate integrated speaker and headphone-driver dissipation using the actual speaker impedance, output waveform, supply voltage, and enclosure temperature. Because maximum output power and thermal resistance are not available in the supplied excerpts, no power or junction-temperature calculation can be made here. Use the manufacturer datasheet limits for design calculations and verify acoustic artifacts, thermal behavior, and output-stage stability in the final enclosure.
Información de cumplimiento
The supplied manufacturer and distributor excerpts do not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. No compliance status has been inferred.
