WM8940CGEFL/RV

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WM8940CGEFL/RV

IC CODEC MONO SPKR DRIVER QFN

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Obsolete
Type Audio
DataInterface Serial
Resolution(Bits) 24 b
NumberofADCs/DACs 1 / 1
SigmaDelta Yes
S/NRatioADCs/DACs(db)Typ 94 / 98
Voltage-SupplyAnalog 2.5V ~ 3.6V
Voltage-SupplyDigital 1.71V ~ 3.6V
OperatingTemperature -25°C ~ 85°C
MountingType Surface Mount
Package/Case 24-VFQFN Exposed Pad

概述

Description

The WM8940CGEFL/RV is a low-power, high-performance stereo audio codec designed for portable applications. It integrates a digital-to-analog converter (DAC) and analog-to-digital converter (ADC), supporting high-resolution audio formats. Key features include a built-in headphone driver, various audio processing features, and multiple digital audio interfaces such as I2S and PCM.
The codec supports sample rates up to 192 kHz and offers programmable gain control, enabling flexible audio signal management. Its low power consumption makes it ideal for battery-operated devices, while its compact size supports space-constrained designs. The WM8940CGEFL/RV is suitable for applications in smartphones, tablets, and other multimedia devices, providing high-quality audio performance with minimal footprint.
Overall, the WM8940CGEFL/RV is an ideal choice for developers looking for a versatile and efficient audio solution in modern electronic devices.

Features

The WM8940CGEFL/RV is a high-performance audio codec designed for mobile devices and other portable applications. Key features include:
1. High-Quality Audio: Supports 24-bit audio resolution and 192 kHz sampling rates for superior sound quality.
2. Integrated Components: Combines DACs (Digital-to-Analog Converters), ADCs (Analog-to-Digital Converters), and headphone amplifiers in a single chip.
3. Low Power Consumption: Designed for battery-operated devices, it provides low power operation modes to extend battery life.
4. Flexible Audio Inputs/Outputs: Multiple input and output configurations, including support for stereo microphones and speakers.
5. Built-in DSP: Features a digital signal processor for advanced audio processing capabilities, such as noise reduction and equalization.
6. Interfacing Options: Supports I2S and PCM digital audio interfaces for easy integration with various microcontrollers and processors.
7. Compact Package: Offered in a small 32-pin LQFP package, making it suitable for space-constrained designs.
These features make the WM8940CGEFL/RV an ideal choice for high-fidelity audio applications in consumer electronics.

Package

The WM8940CGEFL/RV is packaged in a 28-pin QFN (Quad Flat No-lead) format. This type of package offers a compact size and efficient thermal performance, making it suitable for various audio applications.

Pinout

The WM8940CGEFL/RV is a low-power stereo audio codec with a pin count of 32. It is designed for portable applications and features multiple functionalities, including analog-to-digital conversion (ADC), digital-to-analog conversion (DAC), and audio processing.
Key functions include:
- Stereo microphone and line inputs.
- Stereo headphone output.
- Integrated digital signal processing (DSP) capabilities.
- Support for various audio formats and sampling rates.
- Multiple programmable gain amplifiers (PGAs) for input and output.
- I2S and PCM digital audio interfaces for communication with digital audio sources.
The device is suitable for applications such as smartphones, tablets, and other portable multimedia devices, providing high-quality audio performance while maintaining low power consumption.

Manufacturer

The WM8940CGEFL/RV is manufactured by Wolfson Microelectronics, which is now part of Cirrus Logic, Inc. Wolfson was known for designing high-performance analog and mixed-signal semiconductors, particularly in the audio and voice processing sectors. Cirrus Logic, headquartered in Austin, Texas, specializes in providing high-precision, low-power audio and voice signal processing components. The company focuses on applications in consumer electronics, automotive, and industrial markets, making it a significant player in the audio semiconductor industry.

Application

The WM8940CGEFL/RV is a low-power audio codec primarily used in portable devices. Its application areas include smartphones, tablets, and wearable devices, where it provides high-quality audio playback and recording. It is also suitable for digital assistants, gaming devices, and automotive infotainment systems, enhancing user experience with features like noise cancellation and digital signal processing.

Equivalent

The WM8940CGEFL/RV is an audio codec chip by Wolfson Microelectronics (now part of Cirrus Logic). Equivalent products include the WM8960, WM8962, and PCM5102A. When seeking alternatives, consider their specifications regarding features like DAC/ADC capabilities, power consumption, and audio quality to ensure compatibility with your application. Always verify pin configurations and functional requirements before substitution.

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