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SIM 300 ver_7.03 additional circuit use and complete datasheet

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I bought Simcom SIM V_7.03 Gsm module, Can i get the datasheet for it, with external components too.
I am not able to understand purpose of additional circuit.
plz acknowledge me as soon as possible.....
 

**broken link removed**

search here
 

Thanks for your post...but i had already went through many docs but I couldn't find proper explanation of Sim 300 Interfacing with additional components in detail.
Especially the purpose of inductors used and its values. Im very much confused....
 

Same problem :sad: I too tried to get the details but sadly i couldnt ! Can any1 plz explain me the external components used....
 

That is for Ver 1.06....I went through this, it just gives the Ckt diagram but no explanation of components used. Only I got to know abt PS ckt....
 

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