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Product Detailed Parameters
- Description：IC CODEC PORT INTERNET 28SSOP
- Series：-
- Mfr：Cirrus Logic Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Audio
- Data Interface：Serial
- Resolution (Bits)：24 b
- Sigma Delta：Yes
- S/N Ratio, ADCs / DACs (db) Typ：90 / 100
- Dynamic Range, ADCs / DACs (db) Typ：90 / 95
- Voltage - Supply, Analog：2.7V ~ 3.6V
- Voltage - Supply, Digital：1.42V ~ 3.6V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：28-SSOP (0.209", 5.30mm Width)
- Supplier Device Package：28-SSOP
- Grade：-
- Qualification：-
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Overview
The WM8731SEDS/RV is a stereo audio CODEC manufactured by Cirrus Logic, housed in a 28-pin SSOP package. It supports digital audio resolutions up to 24 bits and sampling rates of 96 kHz. The device integrates two ADCs and two DACs, operating within a supply voltage range of 1.8 V to 3.6 V. It features serial interfaces compatible with 2-Wire and 3-Wire protocols. The component provides high signal-to-noise ratios of 90 dB for the ADC and 100 dB for the DAC. It is designed for surface mount installation and functions reliably across an industrial temperature range from -40°C to +85°C.
Feature Summary
- Integrates stereo analog-to-digital and digital-to-analog conversion capabilities within a single low-power chip.
- Supports multiple digital audio interface protocols including I2S, MS, and PCM for flexible system integration.
- Includes built-in headphone drivers and programmable gain stages for direct audio output control.
Applications
- Mobile phones and smartphones requiring compact audio processing solutions.
- Tablets and portable media players utilizing embedded Linux or Android platforms.
- MP3 players and digital audio recorders needing high-fidelity stereo conversion.
Procurement Notes
Verify the specific suffix SEDS/RV against official Cirrus Logic documentation to confirm pinout and packaging details. Confirm current availability status as distribution channels may list this part as obsolete or limited stock. Ensure compatibility with existing board layouts before procurement, as lead times vary significantly for discontinued components.
Selection Notes
Select this component when a stereo CODEC with integrated headphone amplifiers is required for mobile applications. Compare power consumption specifications against alternatives if battery life is critical. Verify that the host processor supports the required serial interface timing and protocol modes specified in the datasheet for proper communication.
Part Context
This part belongs to the WM8731 series of audio CODECs originally developed by Wolfson Microelectronics, which was acquired by Cirrus Logic. The series is widely recognized for its use in consumer electronics and embedded systems. The SEDS/RV designation indicates a specific tape-and-reel packaging variant suitable for automated surface-mount assembly processes.
Replacement Considerations
Check for direct cross-reference parts within the Cirrus Logic portfolio that maintain identical pinouts and functionality. Evaluate newer generations of audio CODECs from other manufacturers if long-term supply stability is required, ensuring electrical compatibility with existing designs.
