WM8782SEDS/V - 24-Bit 192kHz Stereo ADC | Cirrus Logic
N.º da peça: WM8782SEDS/V ✗ Fim de vidaWM8782SEDS/V Visão geral
An audio ADC is a semiconductor that converts left and right analog audio voltages into digital words for processing, storage, transmission, or playback. The WM8782 belongs to the broader hierarchy of audio converter, data-converter, analog-to-digital converter, and integrated-circuit families. Its stereo architecture captures two channels simultaneously, while its digital output can feed an audio processor, codec, digital mixer, or digital recording system.
The WM8782SEDS/V provides 24-bit resolution and sampling rates from 8kHz to 192kHz. Its sigma-delta ADC architecture supports 32x, 64x, or 128x oversampling, while the output word length can be configured from 16 to 24 bits. FORMAT and IWL control inputs permit operation in standard audio-interface configurations, reducing the need for external logic or a separate digital interface controller.
Master and slave clocking schemes are controlled through the M/S input, allowing the converter to work with external master clocks or generate its own audio clock in master mode. The integrated front-end op-amp accepts analog input signals greater than the nominal line-level range, while the two-channel input structure supports stereo source capture. These features make the converter suitable for compact digital audio equipment that requires high-rate conversion without a large external analog front end.
Typical uses include consumer recording equipment, digital mixers, multichannel sound-card inputs, media-capture systems, and industrial audio interfaces. The device is also appropriate for projects requiring 192kHz acquisition when the host processor can accommodate the corresponding data rate. Its 20-pin SSOP package supports conventional surface-mount assembly, although careful grounding and decoupling remain essential for audio performance.
During layout, place input, output, and decoupling components according to the pin-description table and recommended application circuit in the manufacturer datasheet. The analog input and digital interface paths require a quiet ground strategy, short return paths, and controlled clock routing. Because this converter performs high-resolution signal acquisition, bypassing, grounding, and supply sequencing can influence channel matching and overall signal integrity.
This product page combines the device identity, verified technical attributes, lifecycle information, source links, replacement analysis, and practical design guidance. It helps engineers distinguish exact package compatibility from merely similar ADC functions and plan PCB, interface, and sourcing decisions before committing the WM8782SEDS/V to a design.
Alternativas drop-in para WM8782SEDS/V — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
WM8782SEDS
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
WM8782SEDS/V Classificações máximas e características elétricas
| Product Type | Stereo audio analog-to-digital converter |
| Resolução | 24 bit |
| Maximum Sampling Rate | 192kHz |
| Minimum Sampling Rate | 8kHz |
| Number of Analog Input Channels | 2 channels |
| Digital Audio Interface | I2S |
| Output Word Length | 16 bit to 24 bit |
| ADC Oversampling Ratios | 32x, 64x, or 128x |
| Supply Voltage Range | 2.7V to 3.6V or 4.5V to 5.5V |
| Faixa de temperatura de operação | -40C to +85C |
| Encapsulamento | 20-pin SSOP |
| Tipo de montagem | Surface Mount |
| Integrated Front-End Op-Amp | Yes |
| Clocking Modes | Master or Slave |
| Control Inputs | FORMAT, IWL, and M/S |
| Digital Filters | Sigma-delta digital filtering |
Guia de Configuração de Pinos do WM8782SEDS/V 20-pin ssop
Configuração de pinos para WM8782SEDS/V (pacote 20-pin ssop). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para WM8782SEDS/V.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
WM8782SEDS/V é adequado para 6 aplicaçãos: Stereo Digital Recording, Digital Sound-Card Input, Digital Audio Mixer, Industrial Audio Acquisition, Audio Measurement Instrument, Media-Capture and Monitoring System.
Stereo Digital Recording
The WM8782SEDS/V fits stereo recording systems that need simultaneous left and right conversion, 24-bit output words, and sample rates extending to 192kHz. Its two-channel sigma-delta front end connects to line-level sources, while the integrated op-amp accommodates suitable input amplitudes. In a recording chain, the I2S output can feed a digital audio processor or storage engine, provided the host supplies or accepts the selected clocking arrangement. The main design consideration is matching the 192kHz-capable converter to a host path that can handle the corresponding data rate without introducing avoidable clock or data-line noise.
Recomendado
Digital Sound-Card Input
The WM8782SEDS/V is suitable for a stereo sound-card input stage requiring 24-bit conversion and I2S output up to 192kHz. Two analog channels preserve left and right capture paths, and the selectable 32x, 64x, or 128x oversampling provides flexibility for different operating rates. Its SSOP-20 package is useful for compatible legacy boards, but the footprint requires careful central thermal and ground-plane design. Designers should route the I2S clock and data as a compact digital group, separate sensitive analog inputs from switching nodes, and use the manufacturer's recommended supply bypass capacitors.
Recomendado
Digital Audio Mixer
A digital mixer can use the WM8782SEDS/V to capture two analog line-level channels before routing them into a mixing engine. The converter's 16-bit to 24-bit configurable output and 8kHz to 192kHz sampling range support different source and processing requirements. Master or slave clocking provides integration flexibility with external DSP clocks, while FORMAT and IWL allow configuration without dedicated glue logic. In this application, preserving channel alignment requires stable shared clocking and matched analog routing, while preventing converter switching energy from coupling into the input references is essential for clean operation.
Recomendado
Industrial Audio Acquisition
The WM8782SEDS/V can support two-channel industrial audio acquisition where both high-resolution data and a maximum 192kHz sample rate are required. Its -40C to +85C operating range is suitable for many industrial environments, although system-level environmental qualification remains necessary. The I2S output can feed an embedded controller or DSP, and selectable oversampling helps align the converter with the processing bandwidth. Since the WM8782 family is discontinued, production use requires an explicit lifecycle review, stock plan, and ongoing change control rather than unrestricted new-design adoption.
Recomendado
Audio Measurement Instrument
The WM8782SEDS/V can serve as the analog acquisition stage in a compact audio measurement instrument that evaluates two channels at up to 192kHz. Its 24-bit resolution and configurable digital word length provide useful headroom for analysis, while the I2S interface simplifies connection to a digital signal processor. Accurate results depend on clean references, well-controlled analog inputs, and synchronous clocking. The converter should be positioned near the input stage with short analog traces, a continuous return path, and decoupling placed to follow the manufacturer application circuit.
Recomendado
Media-Capture and Monitoring System
The WM8782SEDS/V is appropriate for media-capture and monitoring equipment requiring a compact two-channel ADC with digital output. Its integrated front-end op-amp reduces the amount of external analog circuitry for suitable line-level sources, while I2S simplifies transfer into monitoring or storage electronics. Sample-rate selection must account for storage bandwidth, processing latency, and oversampling mode. Because this is a discontinued family member, an engineered system should retain the exact footprint and verify lifecycle availability, allowing future migration to a redesigned converter only when supply continuity or new feature requirements justify it.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para WM8782SEDS/V — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | WM8782SEDS |
|---|---|---|
| Package | SSOP-20 | SSOP-20 - same |
| Brand | Cirrus Logic | Cirrus Logic |
| Product Type | Stereo audio ADC | Stereo audio ADC |
| Resolution | 24 bit | 24 bit |
| Maximum Sampling Rate | 192kHz | 192kHz |
| Number of Input Channels | 2 channels | 2 channels |
| Digital Interface | I2S | I2S |
| Supply Voltage | 2.7V to 3.6V or 4.5V to 5.5V | 2.7V to 3.6V or 4.5V to 5.5V |
| Operating Temperature | -40C to +85C | -40C to +85C |
| Lifecycle Status | Obsolete | Discontinued WM8782 family |
Principais diferenciais
- Exact-family package compatibility (vs WM8782SEDS)
- High-rate stereo conversion in one device (vs PCM1808PW)
- Configurable digital interface behavior (vs WM8782SEDS)
Notas de projeto
Use the pin-description table and recommended application circuit in the manufacturer datasheet to assign the 20 SSOP pins and place bypass capacitors. Keep the analog input traces short, route them away from digital clock and data lines, and provide a continuous ground reference beneath the analog section. Do not use a generic SSOP-20 footprint assumption for signal mapping; verify orientation and function against the exact WM8782 documentation.
Treat the M/S, FORMAT, IWL, clock, and I2S connections as a coordinated interface group. Establish the master or slave relationship with the host before selecting the audio rate, and verify that the selected 32x, 64x, or 128x oversampling mode is supported by the downstream processor. Series damping may be evaluated on clock and data lines if edge ringing appears, but its final value should be validated with the actual board and load.
Do not treat any ADC with two channels and similar resolution as a drop-in substitute. PCM1808PW, for example, uses a 14-pin TSSOP package and has a different supply and pin arrangement. Replacing the WM8782SEDS/V without a board redesign can cause incorrect connections, inadequate decoupling, or incompatible data timing. For an existing SSOP-20 design, confirm the exact WM8782 suffix and obtain written manufacturer or authorized-channel confirmation before substitution.
Decouple each supply domain close to its associated pins and follow the component values and grounding arrangement shown in the manufacturer application circuit. The device supports both 2.7V to 3.6V and 4.5V to 5.5V operating ranges, so the system rails, interface voltage levels, and bypass strategy must be selected as one design. Keep switching-regulator and digital clock routing away from the analog input references to reduce conversion artifacts.
Informações de conformidade
The WM8782 family is listed by Cirrus Logic as discontinued. No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations were identified for the exact suffix in the available product information.
