The WM8974CGEFL/RV is a Low Power Mono CODEC designed for portable applications such as digital still camera or digital voice recorder. The device integrates support for a differential or single ended mic and includes drivers for speakers or headphone and mono line output. External component requirements are reduced as no separate microphone or headphone amplifiers are required. Advanced sigma delta converters are used along with digital decimation and interpolation filters to give high quality audio at sample rates from 8 to 48ks/s. Additional digital filtering options are available in the ADC path, to cater for application filtering such as wind noise reduction, plus an advanced mixed signal ALC function with noise gate is provided. The digital audio interface supports A-law and m-law companding.
Additional MONO line output
Differential or single end microphone interface
Programmable preamp gain
Pseudo differential inputs with common mode rejection
