WM8781GEDS/V - 24-Bit Stereo ADC | Cirrus Logic | Audio
MPN: WM8781GEDS/V ✗ End of LifeWM8781GEDS/V Overview
An ADC is an analog-to-digital converter, a mixed-signal integrated circuit that samples an analog audio voltage and produces a corresponding digital representation. Within the wider semiconductor hierarchy, the WM8781GEDS/V is an audio ADC, a type of data-converter IC and interface IC used for digital audio capture. Its I2S interface provides a conventional connection to digital audio processors, while the 24-bit resolution preserves substantially more amplitude detail than lower-resolution converters.
The 192 kHz maximum sampling rate supports high-resolution digital audio workflows and exceeds the 48 kHz rate commonly used for CD-quality playback. The 384FS master-mode capability adds clocking flexibility for systems in which the converter must organize digital audio timing. Stereo operation consolidates two audio channels in one package, reducing the number of separate converters needed in a two-channel audio path.
The WM8781GEDS/V operates from a 2.7 V to 3.6 V supply and is specified for an operating temperature range of -25°C to +85°C. Its 20-SSOP package is approximately 5.30 mm wide and 0.209 inch, providing a surface-mount implementation for compact audio products. The supplied distributor information does not provide the complete electrical limits, analog input range, clock requirements, pin mapping, or package height.
Typical applications include digital recording equipment, professional audio interfaces, consumer playback systems, active loudspeakers, audio expansion modules, and embedded media platforms. The device can sit between analog microphone or line-level front ends and an I2S-capable DSP, codec, or digital audio controller, converting the analog signal before digital processing and storage.
Designers should verify the analog input range, common-mode limits, master and slave clock modes, data format, and exposed thermal and supply requirements against the complete manufacturer datasheet before layout. Input and output return paths should preserve low-noise behavior, while decoupling and grounding should prevent converter and digital-interface noise from coupling into the analog section.
This page consolidates verified distributor specifications, package information, functional application guidance, and same-family replacement candidates. It also identifies the missing pinout, detailed timing, absolute maximum ratings, and verified pricing data that engineers should obtain from the manufacturer datasheet before releasing a production design.
Drop-in alternatives for WM8781GEDS/V — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with WM8781GEDS/V (same form factor and footprint) — differing in Package, Device Type, Maximum Sampling Rate, Manufacturer, Product Type.
WM8783GED/V
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →WM8762CGED
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →WM8725CGED
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →WM8781GEDS/V Maximum Ratings & Electrical Characteristics
| Device Type | Stereo audio ADC |
| Resolution | 24 bit |
| Maximum Sampling Rate | 192 kHz |
| Channel Count | 2 channels |
| Digital Audio Interface | I2S |
| Master Mode Support | 384FS master mode |
| Supply Voltage Range | 2.7 V to 3.6 V |
| Operating Temperature Range | -25°C to +85°C |
| Package | 20-pin SSOP, 5.30 mm width |
| Package Width | 0.209 inch (5.30 mm) |
| Mounting Type | Surface mount |
| Terminal Count | 20 terminals |
| Product Category | Data Acquisition - ADCs/DACs - Special Purpose |
WM8781GEDS/V 0.209 inch (5.30 mm) Pin Configuration Guide
Pin configuration for WM8781GEDS/V (0.209 inch (5.30 mm) package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for WM8781GEDS/V.
Refer to the datasheet for full pin configuration.
Typical Applications
WM8781GEDS/V is suitable for 6 applications: Digital Recording Equipment, Professional Audio Interface, Active Loudspeaker and Digital Amplifier System, USB Audio Capture Adapter, Consumer Media and Network Audio, Audio Test and Measurement.
Digital Recording Equipment
The WM8781GEDS/V fits a stereo recording front end that must convert two analog channels into a digital I2S stream before storage or editing. Its 24-bit resolution provides a higher-resolution numerical representation than ordinary low-bit-rate converters, while the 192 kHz maximum sampling rate supports high-resolution capture. Place the ADC after the analog input amplifier and anti-alias network, then route its I2S output to a DSP or storage controller. The implementation should use a low-noise reference and clock arrangement, and it should preserve the converter's specified analog and digital supply arrangement.
Recommended
Professional Audio Interface
A professional stereo interface can use the WM8781GEDS/V to convert line-level or balanced analog inputs into digital data for mixing, monitoring, or multitrack recording. The converter's stereo architecture reduces the component count for a left-right capture path, and its I2S output connects efficiently to digital audio processors. The 24-bit resolution and 192 kHz capability provide suitable resolution and sampling headroom for high-quality capture. Engineers must still confirm the permitted analog input range, input impedance, clocking arrangement, and isolation requirements before selecting the surrounding amplifier and routing network.
Recommended
Active Loudspeaker and Digital Amplifier System
The WM8781GEDS/V can digitize stereo analog source signals in an active loudspeaker or digital amplifier platform before they are processed by an I2S-capable amplifier controller. This architecture centralizes conversion and allows digital volume, filtering, or crossover functions to be applied before power amplification. The 192 kHz maximum rate and 24-bit resolution support high-resolution audio paths, although the final system may operate at a lower rate according to its format and clock design. The layout should isolate analog input traces from switching-amplifier outputs and digital control signals to reduce conversion error.
Recommended
USB Audio Capture Adapter
A USB stereo capture adapter can place the WM8781GEDS/V between an analog input stage and a USB audio controller. The ADC produces a 24-bit I2S stream at rates up to 192 kHz, allowing the downstream controller to encode or transmit the selected format. The 2.7 V to 3.6 V supply range may simplify integration with low-voltage digital audio circuitry, but the actual analog interface topology still requires datasheet confirmation. Good layout practice includes short input paths, continuous ground references, controlled clock routing, and separate filtering paths for analog and digital supplies.
Recommended
Consumer Media and Network Audio
Consumer media systems can use the WM8781GEDS/V when analog source content must become an I2S stream for a digital amplifier, codec, or network-audio processor. Stereo conversion consolidates two channels, while 24-bit resolution and support for rates up to 192 kHz provide a path for high-resolution source handling. The I2S interface connects cleanly with digital audio buses, but system timing must ensure that master and slave roles, bit clock, frame clock, and data alignment agree. Adequate analog grounding and controlled supply return paths remain essential even when the end product is a consumer device.
Recommended
Audio Test and Measurement
The WM8781GEDS/V can serve as the analog-to-digital stage in a compact audio measurement instrument when a two-channel, high-resolution acquisition path is required. Its 192 kHz maximum rate and 24-bit resolution allow the instrument to capture waveforms or stereo test signals with greater numeric detail than a low-resolution converter. The instrument's clock source should provide stable, low-jitter timing and the test program must account for the selected sample rate and digital word format. Before production use, engineers should characterize gain error, frequency response, noise, and clock jitter in the complete analog front end.
Recommended
Recommended Products Summary
Engineering reference data for WM8781GEDS/V — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | WM8783GED/V | WM8762CGED | WM8725CGED |
|---|---|---|---|---|
| Brand | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic |
| Package | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP |
| Device Type | Stereo audio ADC | Stereo audio ADC family member | Audio ADC family member | Audio ADC family member |
Key Differentiators
- Verified high-resolution stereo conversion (vs WM8783GED/V)
- Documented master-mode clocking support (vs WM8762CGED)
- Stereo integration in a 20-pin SSOP (vs WM8725CGED)
Design Notes
Keep the WM8781GEDS/V analog input traces short and isolated from I2S clock, data, power-converter, and digital return paths. Use a continuous ground reference beneath the analog section and route analog and digital returns to their respective supply sources without crossing high-current paths. Although the supplied data does not specify the complete analog input topology, conservative return routing is important in a 24-bit, 192 kHz converter.
Follow the manufacturer datasheet for analog and digital supply connections, decoupling, and sequencing; those details are not present in the supplied source data. The verified operating supply range is 2.7 V to 3.6 V. Place required bypass capacitors close to their associated pins, provide a low-impedance ground return, and avoid sharing narrow supply traces between the converter and switching or high-current output stages.
I2S clock jitter can affect conversion quality even when the nominal sampling rate is correct. Route bit clock and frame clock away from analog inputs, use short point-to-point connections where possible, and confirm the source's master or slave role, polarity, word length, and data alignment from the manufacturer datasheet. The verified 384FS master-mode support should be evaluated against the complete system clock architecture.
Do not infer the pinout, analog input range, or absolute maximum ratings from the distributor category labels. The supplied results identify a 20-pin SSOP, 24-bit resolution, 192 kHz sampling, stereo operation, and the 2.7 V to 3.6 V supply range, but they do not provide a verified pin table. Download the current manufacturer datasheet and compare every package pin before schematic capture or replacement qualification.
Compliance Information
The supplied distributor and search results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than assuming regulatory compliance.
