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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. 1 Introduction. 1 Introduction. s. This application note provides technical recommendations for integrating audio accessories into cellular applications. based on Siemens GSM modules. It discusses various solutions for typical design approaches, evaluates
Cellular Engine TC35 - Electrodragon
https://www.electrodragon.com/w/images/c/cb/Tc35_an_02_v02.00_audio_interface_260185.pdf
GSM Engine TC35 Released Application Note Audio Interface TC35-AN-02-V02.00 6/12 Version 02.00 Application Note *) Note (to Figure 1) The two R1108 (1K) and R1165 (1K) resistors are used as voltage dividers for the microphones. In the schematic both resistors are designed as 1k. This results in 6V for
Hardware Interface Overview - KORE Wireless
http://services.koretelematics.com/devices/images/devices/cinterion/xt75/xt75%20-%20manual.pdf
[4] Application Note 02: Audio Interface Design for GSM Applications [5] Application Note 07: Rechargeable Lithium Batteries in GSM Applications [6] Application Note 16: Upgrading Firmware [7] Application Note 17: Over-The-Air Firmware Update [8] Application Note 22: Using TTY / CTM Equipment [9] Application Note 24: Application Developer’s Guide
TC35i Module TC35i Terminal
https://www.tkc.kiev.ua/sites/default/files/tc35i_rn_v0207.pdf
[6] Application Note 02: Audio Interface Design for GSM Applications [7] Application Note 07: Li-Ion Batteries in GSM Applications [8] Application Note 16: Upgrading TC35i Firmware [9] Application Note 14: Audio and Battery Parameter Download [10] Multiplexer User’s Guide [11] Multiplex Driver Developer™s Guide for Windows 2000 and Windows XP
GSM Audio Player Application Note - Cika
https://cika.com/soporte/Information/GSMmodules/Quectel/AppNotes/Quectel_GSM_Audio_Player_Application_Note.pdf
GSM Audio Player Application Note GSM_Audio_Player_Application_Note Confidential / Released 2 / 30 About the Document History Revision Date Author Description 3.0 2013-02-19 Thomas ZHANG Initial 3.1 2013-04-18 Thomas ZHANG 1. Modified the sampling rate of audio recording
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