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Audio Interface Design for GSM Applications

    http://files.elsist.biz/forum/20120222153345.pdf
    Application Note 02: Audio Interface Design for GSM Applications Confidential / Released s mo b i l e mc4x_5x_AN_02_Audio_v04 Page 6 of 27 15.12.2003 1 Introduction This application note provides technical recommendations for integrating audio accessories into cellular applications based on Siemens GSM modules. It discusses various solutions for

AN02: Audio Interface Design for GSM Applications - CPG

    https://www.yumpu.com/en/document/view/5715414/an02-audio-interface-design-for-gsm-applications-cpg
    AN02: Audio Interface Design for GSM Applications. 3 Digital Audio Interface (DAI) 3 Digital Audio Interface (DAI) s. The DAI can be used to connect audio devices capable of PCM (Pulse Code Modulation) or for type approval. The following sections describe the PCM interface functionality. The PCM functionality allows the use of a codec like for example the MC145483. This codec …

SIM900A GSM Module Pinout, Examples, Applications, …

    https://microcontrollerslab.com/sim900a-gsm-module-pinout-examples-applications-datasheet/
    Audio Interface The audio interface will help to connect the mic and speaker with SIM900A. The connection of Line, Audio and Speaker will help to make the calls through the modules. MIC_P – Pin19 MIC_N – Pin20 SPK_P – Pin21 SPK_N – Pin22 LINEIN_R – Pin23 LINE_L – Pin24 Control Pin

Feature-Rich, Complete Audio Record/Playb | Maxim …

    https://www.maximintegrated.com/en/design/technical-documents/app-notes/3/3573.html
    The MAX9851 S2 digital I/Os have an interface that supports I²S and popular minor variations thereof. When not operating in GSM voice mode, the S1 interface can be programmed to support I²S, maximizing the interface flexibility often needed in feature-rich, high-end phones. Digital Audio—GSM Filters

Layout Design Guide - Toradex

    https://docs.toradex.com/102492-layout-design-guide.pdf
    GSM Global System for Mobile Communications HDA High Definition Audio (HD Audio) - digital audio interface between CPU and audio codec HDCP High-Bandwidth Digital Content Protection - a copy protection system that is used by HDMI besides ... application was the Flat Panel Display Link, LVDS became a synonymous for this interface. In this

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