TLV320AIC1109 codec equivalent, pcm codec.
D 2.7-V Operation D Two Differential Microphone Inputs, One
Differential Earphone Output, and One Single-Ended Earphone Output
D Programmable Gain Amplifiers for Transmit.
D Dual-Tone Multifrequency (DTMF) D Pulse Density Modulated (PDM) Buzzer
Output
APPLICATIONS
D Digital Handset D Digital.
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