WM8976CGEFL/V

Overview

The WM8976CGEFL/V is a low-power stereo audio codec designed for portable multimedia applications such as digital cameras and camcorders. It integrates differential microphone preamplifiers, headphone drivers, and speaker amplifiers, reducing external component requirements. The device features a 24-bit resolution with a sampling rate of 48 kHz. It includes a 5-band equalizer, automatic level control, and digital limiting functions. The analog supply voltage ranges from 2.5 V to 3.6 V, while the digital core operates at lower voltages. Signal-to-noise ratios are specified at 90 dB for ADC and 98 dB for DAC. The unit is housed in a 32-pin QFN package.

Feature Summary

• Integrated stereo headphone drivers and speaker amplifiers eliminate the need for separate output stages.
• Built-in digital signal processing includes a five-band equalizer and programmable noise gate or automatic level control.
• On-chip phase-locked loop generates required audio clocks from common reference frequencies like 12 MHz or 13 MHz.
• Supports differential or single-ended microphone interfaces with programmable gain and pseudo-differential input options.

Applications

• Stereo digital cameras
• Digital video camcorders
• Portable multimedia devices

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly. Check for end-of-life notices or obsolescence warnings. Ensure proper handling procedures are followed due to surface-mount packaging constraints.

Selection Notes

Select this model when integrated headphone and speaker driving capabilities are required within a compact form factor. Consider the specific power supply constraints of the target application, particularly the separation between analog and digital core voltages. Evaluate the need for onboard DSP features like equalization versus external processing solutions.

Part Context

This component belongs to the Cirrus Logic WM897x series of audio codecs. It shares architectural similarities with models like the WM8978 but offers distinct integration levels for speaker outputs. The series targets consumer electronics requiring high-quality audio conversion with minimal peripheral count.

Replacement Considerations

Direct substitutes may include other Cirrus Logic stereo codecs with similar pinouts and functionality. Verify compatibility regarding power supply requirements and interface protocols before replacement.