The ES7149 is a Codec IC with QFN-12 packages made by Everest Semiconductor Corporation. It is RoHS compliant. It provides the standard audio functions such as G.168 Line Echo Cancellation (LEC), Group Delay, and Automatic Gain Control (AGC). It also provides advanced features like Comfort Noise Generation (CNG) and Voice Activity Detection (VAD). It can support a wide range of voice applications, such as VoIP, audio conferencing, and voice over LTE/GSM. It is suitable for use in various types of telecommunication equipment, including IP phones, handsets, and audio conference terminals. The ES7149 has a maximum sampling rate of 64KHz. It can support a variety of data formats, including linear PCM, G.711 (a-Law/mu-Law), G.722, and AMR.