WM8804GEDS/V - 1:1 S/PDIF Transceiver | Cirrus Logic
Référence : WM8804GEDS/V ✓ ActifWM8804GEDS/V Présentation
An S/PDIF transceiver is an interface IC that converts digital audio signals between consumer Sony/Philips digital audio format and a parallel digital audio interface. Within the broader semiconductor hierarchy, the WM8804 is a digital audio interface IC, an interface IC, and a signal-processing semiconductor used to connect audio converters, receivers, and digital playback systems.
The WM8804 can use either a crystal-derived clock or an externally supplied high-quality master clock. Its clock-recovery architecture provides low-jitter recovery of the master clock carried by an S/PDIF stream, while the internal PLL can generate commonly used audio clocks. A dedicated CLKOUT pin provides access to a generated or recovered clock for associated audio-processing circuitry.
The 1:1 digital interface supports integration between S/PDIF-capable audio hardware and a digital audio bus. A clock derived from the incoming S/PDIF signal can support system synchronization, while the transmit path provides S/PDIF output from a compatible digital audio source. The combination of integrated PLL functions and clock output reduces the amount of external clock-generation circuitry required in consumer audio products.
Typical applications include digital home-theater equipment, CD and DVD player subsystems, digital audio receiver boards, active speaker interfaces, consumer home-audio products, and industrial digital audio equipment. The 20-lead SSOP package supports compact circuit layouts, although its larger lead pitch and body dimensions should be considered against smaller surface-mount alternatives when space is constrained.
Designers should provide a clean and stable 2.7 V to 3.6 V supply, route the S/PDIF data and clock signals away from noisy switching nodes, and ensure the selected master-clock source has adequate low-jitter performance. Decoupling and exposed-ground layout should follow the manufacturer datasheet recommendations, particularly when the transceiver is adjacent to a switching power supply or a high-speed digital processor.
This product summary consolidates the verified distributor specifications, manufacturer-oriented datasheet references, package information, and design considerations into one engineering-focused guide. It also distinguishes documented electrical facts from unavailable pricing, lifecycle, pin-level, and equivalent-part information so engineers can assess fit without relying on unverified substitutions.
Alternatives de remplacement direct pour WM8804GEDS/V — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesWM8804GEDS/V Valeurs maximales et caractéristiques électriques
| Product Type | Consumer-mode S/PDIF audio transceiver |
| Received Audio Channels | 1 channel |
| Transmitted Audio Channels | 1 channel |
| Digital Interface | 1:1 digital audio interface |
| Supply Voltage Range | 2.7 V to 3.6 V |
| Plage de température de fonctionnement | -40°C to +85°C |
| Temperature Grade | Industrial |
| Boîtier | 20-lead SSOP |
| Package Type | Gull-wing SSOP |
| Terminal Count | 20 terminals |
| Type de montage | Surface-mount |
| Clock Recovery | Low-jitter recovery of an S/PDIF-supplied master clock |
| Master Clock Sources | Crystal-derived or externally supplied high-quality master clock |
| PLL Function | Internal PLL for generating commonly used audio clocks |
| Clock Output | Dedicated CLKOUT pin |
| Lead-Free Status | Pb-free |
Guide de configuration des broches du WM8804GEDS/V gull-wing ssop
Configuration des broches du WM8804GEDS/V (boîtier gull-wing ssop). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour WM8804GEDS/V.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
WM8804GEDS/V convient pour 6 applications: Digital Home-Theater Receiver, CD and DVD Player Audio Output, Active Speaker Digital Input, Digital Audio Interface Card, Digital Audio Recording Front End, Consumer Home-Audio Processor.
Digital Home-Theater Receiver
The WM8804GEDS/V fits a digital home-theater receiver that must accept an S/PDIF source and connect it to a 1:1 digital audio bus. Its one receive channel and one transmit channel support bidirectional digital-audio routing, while the internal PLL can generate commonly used audio clocks for downstream converters. The 2.7 V to 3.6 V supply range suits a 3.3 V receiver architecture, and the -40°C to +85°C industrial grade provides useful temperature-range margin. Designers should isolate the S/PDIF input from switching-node noise and use the manufacturer-recommended supply decoupling.
Recommandé
CD and DVD Player Audio Output
The WM8804GEDS/V can provide the digital-audio interface stage of a CD or DVD player that accepts or outputs consumer-mode S/PDIF. The separate 1-channel transmit and receive paths allow the subsystem to receive digital audio and route it onward, while the 1:1 interface suits digital transports requiring a compact parallel bus. Its internal PLL and dedicated CLKOUT provide useful clocking options for associated converters. Layout must keep the S/PDIF data and clock traces short, with return paths referenced continuously to reduce data-dependent jitter.
Recommandé
Active Speaker Digital Input
The WM8804GEDS/V is suitable for an active speaker that receives digital audio over S/PDIF and connects it to an internal digital signal-processing or conversion stage. One receive channel matches the single digital-audio stream expected by many consumer speaker products, and low-jitter master-clock recovery supports a stable downstream audio clock. The 20-lead Pb-free SSOP package permits conventional surface-mount assembly. Designers should account for the 3.3 V supply limit and ensure that switching regulators and digital processors do not inject noise into the S/PDIF or clock nets.
Recommandé
Digital Audio Interface Card
The WM8804GEDS/V can be used on a modular digital-audio interface card that bridges an S/PDIF port and a 1:1 digital bus. Its one-channel receive and transmit functions support bidirectional monitoring or distribution, and the internal PLL offers clock generation without requiring a separate PLL on every board. The industrial -40°C to +85°C rating is appropriate for controlled industrial audio equipment. Because the verified data does not include pin names, implementation must follow the manufacturer SSOP layout and provide local decoupling at the supply pins.
Recommandé
Digital Audio Recording Front End
The WM8804GEDS/V can form the digital-audio input interface of a consumer recording product. Its S/PDIF receive channel accepts a compatible digital source, the recovered master clock provides a synchronized reference, and the 1:1 interface can feed an internal converter. The 2.7 V to 3.6 V operating range supports low-voltage portable or desktop equipment. Signal integrity is critical: maintain a continuous reference plane, avoid stubs, and separate the S/PDIF routing from high-current switching paths to preserve low-jitter operation.
Recommandé
Consumer Home-Audio Processor
The WM8804GEDS/V can connect a home-audio processor to consumer digital-audio components through S/PDIF. One transmitted channel provides a digital output, while one received channel can accept a source clock and data pair; the internal PLL and CLKOUT support clock distribution to other circuit blocks. Its industrial temperature range is suitable for equipment with internal heat. Engineers should select the clock architecture according to the full datasheet, verify jitter requirements, and reserve filtering or isolation capacity where source cables introduce ground loops.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour WM8804GEDS/V — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Product Type | Consumer-mode S/PDIF audio transceiver |
| Receive Channels | 1 channel |
| Transmit Channels | 1 channel |
| Digital Interface | 1:1 digital interface |
| Supply Voltage Range | 2.7 V to 3.6 V |
| Operating Temperature Range | -40°C to +85°C |
| Package | 20-lead Pb-free SSOP |
| Brand | Cirrus Logic |
| PLL Capability | Internal PLL with dedicated CLKOUT pin |
| Master Clock Support | Crystal-derived or externally supplied master clock |
Principaux différenciateurs
- Bidirectional single-channel digital-audio support (vs CS8416)
- Integrated PLL clock generation (vs CS8416)
- Documented industrial temperature operation (vs CS8416)
- Same-package procurement variants (vs WM8804GEDS/RV)
Notes de conception
Route the S/PDIF data and clock traces as a short, matched pair with a continuous reference plane. Avoid series branches, test-point stubs, and abrupt changes between reference planes. The verified sources describe low-jitter recovery but do not provide a maximum trace length or impedance target, so use the manufacturer reference layout and signal-integrity guidance when defining the board stack-up.
Design the supply network for the documented 2.7 V to 3.6 V operating range and place the required decoupling capacitors close to the device's supply and ground pins. Keep the S/PDIF transceiver's supply return path separate from switching-node currents wherever possible. The supplied excerpts do not state the recommended capacitance or ESR, so those values must be obtained from the full manufacturer datasheet rather than guessed.
Do not substitute the CS8416 or treat a reel-code change as a confirmed drop-in replacement. The verified cross-reference identifies the CS8416 as having a different pin configuration, while WM8804GEDS/RV and WM8804GEDS/R are described as different reel-packaging options. Confirm electrical identity, package, pinout, lead-free status, marking, tape orientation, and moisture-handling requirements before approving any procurement alternate.
The master clock directly influences digital-audio timing quality, so select the crystal or external clock source only after checking the manufacturer's supported frequency, amplitude, and jitter requirements. Preserve a low-jitter clock path, maintain adequate spacing from noisy digital and power-conversion circuits, and include grounding and filtering options that can be tuned during board bring-up. These implementation details require the complete WM8804 datasheet because they are absent from the supplied excerpts.
Informations de conformité
The verified WM8804GEDS datasheet excerpt identifies the WM8804GEDS as a Pb-free 20-lead SSOP. No verified RoHS, REACH, AEC-Q100, halogen-free, or conflict-minerals declaration was supplied, so those statuses remain unknown or not applicable as recorded.
