The WM8758 is a low power, high quality stereo codec featuring integrated pre-amps for stereo differential mics, and drivers for headphone and differential or stereo line output. Separate microphone or headphone amplifiers are not required, and headphone and line common feedback improves crosstalk and noise performance. Advanced on-chip digital signal processing includes a five-band equalizer, a mixed-signal automatic level control for the microphone or line input through the A/D converter, as well as a purely digital limiter function for record or playback. Additional digital filtering options are available in the ADC path for application filtering such as 'wind noise reduction' and notch filter. Additional power management control enables individual sections of the chip to be powered down under software control.
Stereo differential or mono microphone interfaces
Programmable preamp gain
Psuedo-differential inputs with common mode rejection
Programmable ALC/noise gate in ADC path
Low-noise bias supplied for electret microphones
Enhanced 3-D function for improved stereo separation
Digital playback limiter
5-band equalizer (record or playback)
Programmable ADC high pass filter (wind noise reduction)
Programmable ADC notch filter
PLL supporting various clocks between 8MHz-50MHz
2.5V to 3.6V analog supplies
1.71V to 3.6V digital supplies
5x5mm 32-lead QFN package
Decoder or Encoder Signal Type - Audio
Decoder/Encoder Type - Analog to Digital Decoder/Encoder
Decoder/Encoder Type - Digital to Analog Decoder/Encoder
