WM8976CGEFL/RV

Product Overview

• Category: Audio Codec
• Use: The WM8976CGEFL/RV is a high-performance audio codec designed for portable multimedia devices such as smartphones, tablets, and portable media players.
• Characteristics: It offers high-quality audio playback and recording capabilities, low power consumption, and a compact package size.
• Package: The WM8976CGEFL/RV comes in a small form factor package, making it suitable for space-constrained applications.
• Essence: This audio codec provides a complete solution for audio processing, including analog-to-digital conversion (ADC), digital-to-analog conversion (DAC), and various audio enhancements.
• Packaging/Quantity: The WM8976CGEFL/RV is typically sold in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• ADC Resolution: 24-bit
• DAC Resolution: 24-bit
• Sampling Rate: Up to 96 kHz
• Power Supply Voltage: 2.7V to 3.6V
• Interface: I2C, SPI, and DSP compatible
• Audio Inputs: Microphone, Line-in
• Audio Outputs: Headphone, Line-out
• Additional Features: Integrated microphone bias, programmable filters, digital volume control, and audio mixing capabilities.

Pin Configuration

The WM8976CGEFL/RV has a total of 32 pins. Here is the detailed pin configuration:

1. MICBIAS1
2. MICIN1N
3. MICIN1P
4. MICBIAS2
5. MICIN2N
6. MICIN2P
7. LINEINL
8. LINEINR
9. GND
10. AVDD
11. DVDD
12. LOUT1
13. ROUT1
14. LOUT2
15. ROUT2
16. SPKL
17. SPKR
18. HPLCOM
19. HPRCOM
20. HPL
21. HPR
22. CLKI
23. BCLK
24. LRCLK
25. SDIN
26. SDOUT
27. RESET
28. GPIO1
29. GPIO2
30. GPIO3
31. GPIO4
32. VREF

Functional Features

• High-quality audio playback and recording
• Low power consumption for extended battery life
• Integrated microphone bias for direct microphone connection
• Programmable filters for audio signal processing
• Digital volume control for precise audio level adjustment
• Audio mixing capabilities for combining multiple audio sources

Advantages and Disadvantages

Advantages: - High-performance audio codec with 24-bit resolution - Compact package size suitable for portable devices - Versatile interface compatibility (I2C, SPI, DSP) - Integrated microphone bias simplifies design - Programmable filters and digital volume control offer flexibility in audio processing

Disadvantages: - Limited quantity per reel (2500 units) - Requires external components for complete audio system integration

Working Principles

The WM8976CGEFL/RV operates by converting analog audio signals into digital data using the ADC, and vice versa using the DAC. It utilizes various internal filters and enhancements to improve audio quality. The device can be controlled and configured through the I2C or SPI interface, allowing for customization of audio settings.

Application Field Plans

The WM8976CGEFL/RV is widely used in portable multimedia devices such as smartphones, tablets, portable media players, and other handheld devices that require high-quality audio playback and recording capabilities. It is also suitable for applications where space is limited due to its compact package size.

Alternative Models

• WM8976CGEFL/RV: The standard version of the WM8976 audio codec.
• WM8976CGEFL/RV/NOPB: Similar to the standard version, but with no lead (Pb)-based materials used in the manufacturing process, making it RoHS compliant.

These alternative models offer similar functionality and performance as the WM8976CGEFL/RV, providing options for different manufacturing requirements or environmental regulations.

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