Dialog Semiconductor DA7219
The DA7219 is an audio codec with Advanced Accessory Detection (AAD). The AAD block supports three-pole (headphone) and four-pole (headset) jacks, and allows the automatic pin order switching of MIC/GND on CTIA or OMTP headsets. It also supports automatic button detection.DA7219 Audio codec with Advanced Accessory Detect Company confidential General description DA7219 contains a mono microphone to ADC path, and a stereo DAC to HP path. It also supports automatic button detection. Key features
● High performance mono microphone to ADC record path with 90 dB SNR □ ADC digital filters with audio and voice mode high-pass characteristics □ A low-noise microphone bias regulator with programmable output
● High performance stereo DAC to headphone playback path with 100 dB SNR □ DAC digital filters with audio and voice mode high-pass cut-off and 5-band equaliser
● Advanced Accessory Detection supports □ Three/four pole jack detection □ MIC/GND polarity switching □ Multiple button detection □ Headphone impedance tes
● High performance mono microphone to ADC record path with 90 dB SNR □ ADC digital filters with audio and voice mode high-pass characteristics □ A low-noise microphone bias regulator with programmable output
● High performance stereo DAC to headphone playback path with 100 dB SNR □ DAC digital filters with audio and voice mode high-pass cut-off and 5-band equaliser
● Advanced Accessory Detection supports □ Three/four pole jack detection □ MIC/GND polarity switching □ Multiple button detection □ Headphone impedance tes