WM8731SEDS

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WM8731SEDS

+Nomenclature

Interface - CODECs Stereo Codec with H/P

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Présentation

Description

The WM8731SEDS is a low-power stereo codec designed for audio applications. It integrates analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) to facilitate high-quality audio processing. The device supports audio signal conversion and is commonly used in portable audio devices, such as MP3 players and voice recorders.
Key features of the WM8731SEDS include support for multiple audio data formats (I2S, left-justified, right-justified), digital filtering, and a programmable audio interface. It operates on low voltage, which is ideal for battery-powered devices, and offers various power management modes to optimize energy consumption.
The codec provides high-resolution audio with a signal-to-noise ratio (SNR) of up to 100 dB for playback and recording. It also includes integrated microphone and headphone amplifiers, which simplify design and reduce the need for additional components.
Overall, the WM8731SEDS is valued for its compact design, low power usage, and high audio fidelity, making it a popular choice for consumer electronics that require efficient and high-quality audio processing.

Equivalent

The WM8731SEDS is a stereo audio codec with integrated headphone driver, commonly used in audio applications. Equivalent products include:
1. Texas Instruments TLV320AIC23B
2. Analog Devices AD1938
3. Cirrus Logic CS4270
4. AKM AK4556
5. Maxim Integrated MAX9860
These alternatives offer similar functionalities like stereo audio codec capabilities, integrated DAC/ADC, and headphone outputs, though specific features and performance might vary. Always check datasheets for compatibility with your specific requirements.

Features

The WM8731SEDS is a low-power stereo audio codec featuring high-quality audio performance. Key features include stereo ADCs and DACs with 24-bit resolution and support for sampling rates up to 96 kHz. It offers a microphone input with programmable gain amplifier, a line input, and a line output. The codec supports digital audio interfaces such as I2S, left-justified, right-justified, and DSP modes, making it flexible for various applications.
Additionally, it includes an integrated headphone amplifier for direct connection to headphones, and a digital volume control for the DAC, ADC, and line input. The WM8731SEDS also provides functions such as mute, de-emphasis, and power management with low standby current consumption. The device operates from a single 2.7V to 3.6V power supply, making it suitable for portable and battery-powered devices. Its small package size and extensive feature set make it ideal for use in a range of audio applications, including mobile phones, MP3 players, and other portable audio equipment.

Pinout

The WM8731SEDS is a stereo audio codec with 28 pins. It is designed for digital audio applications and offers several functionalities:
1. Audio Input/Output: It has line inputs and outputs, microphone inputs, and a headphone driver.
2. Digital Interface: Supports various audio data formats including I2S, left justified, and right justified.
3. Analog to Digital Conversion (ADC): Converts analog audio signals to digital form.
4. Digital to Analog Conversion (DAC): Converts digital audio signals to analog form.
5. Volume Control: Provides programmable gain amplifiers and volume controls for both inputs and outputs.
6. Clocking: Supports master and slave modes for clocking.
7. Power Management: Includes integrated power management features to reduce power consumption.
These features make the WM8731SEDS suitable for use in devices like portable music players, digital recorders, and other audio processing equipment.

Manufacturer

The WM8731SEDS is manufactured by Cirrus Logic, Inc. Cirrus Logic is a semiconductor company that specializes in developing integrated circuits, primarily for audio and voice signal processing applications. The company is known for its high-performance analog and mixed-signal audio ICs, which are used in a range of consumer electronics, automotive, and professional audio products. Cirrus Logic's focus on innovation and quality has established it as a leader in the audio technology industry.

Application

The WM8731SEDS is a low-power stereo audio codec commonly used in various audio applications. Its primary application areas include portable digital audio players, recorders, and multimedia devices where high-quality audio playback and recording are crucial. It is also utilized in educational tools and development boards for audio processing projects, thanks to its integrated ADC and DAC, supporting both microphone input and headphone output. Additionally, the WM8731SEDS is featured in embedded systems and audio interface hardware, facilitating high-fidelity audio transmission and reception in compact, power-efficient designs. Its versatility and quality make it suitable for both consumer electronics and professional audio equipment.

Package

The WM8731SEDS is an audio codec that comes in a 28-pin SSOP (Shrink Small Outline Package) type. This package is compact, making it suitable for small electronic devices while providing necessary functionality for audio processing.

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