WM8974CGEFL/RV

Product Overview

• Category: Audio Codec
• Use: Audio processing and conversion
• Characteristics: High-quality audio performance, low power consumption
• Package: QFN (Quad Flat No-Lead)
• Essence: Digital-to-analog and analog-to-digital conversion for audio signals
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Resolution: 24-bit
• Sampling Rate: Up to 96 kHz
• Input/Output Channels: Stereo
• Power Supply Voltage: 2.7V - 3.6V
• Power Consumption: <10mW
• Interface: I2C, SPI, PCM
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The WM8974CGEFL/RV has a total of 32 pins. The pin configuration is as follows:

1. VREFL
2. VCOM
3. VREFR
4. AVDD
5. DVDD
6. AGND
7. DGND
8. LOUT1N
9. LOUT1P
10. LIN1N
11. LIN1P
12. LOUT2N
13. LOUT2P
14. LIN2N
15. LIN2P
16. ROUT1N
17. ROUT1P
18. RIN1N
19. RIN1P
20. ROUT2N
21. ROUT2P
22. RIN2N
23. RIN2P
24. BCLK
25. LRCLK
26. SDIN
27. SDOUT
28. RESET
29. GPIO1
30. GPIO2
31. GPIO3
32. GPIO4

Functional Features

• High-quality audio conversion with low distortion and noise
• Integrated microphone bias voltage generation
• Programmable digital filters for audio processing
• Built-in headphone amplifier
• Flexible control interface (I2C, SPI, PCM)
• Power management features for low power consumption

Advantages and Disadvantages

Advantages: - High-quality audio performance - Low power consumption - Integrated microphone bias voltage generation simplifies design - Flexible control interface allows for easy integration

Disadvantages: - Limited quantity per reel (3000 units) - Requires external components for complete audio system implementation

Working Principles

The WM8974CGEFL/RV is an audio codec that performs digital-to-analog (DAC) and analog-to-digital (ADC) conversion for audio signals. It utilizes high-resolution converters to accurately convert digital audio data into analog signals and vice versa. The device also incorporates various digital filters and signal processing algorithms to enhance audio quality.

The codec operates on a low power supply voltage and includes power management features to minimize power consumption. It can be controlled through various interfaces such as I2C, SPI, or PCM, allowing for easy integration into different systems.

Detailed Application Field Plans

The WM8974CGEFL/RV is suitable for a wide range of applications, including:

1. Mobile devices: Smartphones, tablets, portable media players
2. Audio equipment: Digital audio players, soundbars, headphones
3. Communication systems: VoIP phones, conference systems
4. Automotive: In-car entertainment systems, hands-free kits
5. Industrial applications: Audio recording and playback devices, measurement equipment

Alternative Models

1. WM8974CGEFL/RV: QFN package, 24-bit resolution, stereo channels
2. WM8974CGEFL/V: QFN package, 24-bit resolution, mono channels
3. WM8974CGEFL/VR: QFN package, 16-bit resolution, stereo channels
4. WM8974CGEFL/R: QFN package, 16-bit resolution, mono channels

These alternative models offer different configurations to suit specific application requirements.

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