Manual Do Utilizadoríndice analíticoIntroduction3Abbreviations3Safety Precautions4Technical Specifications52.1. General Specifications5GSM/ GPRS Specifications5RF Frequencies6Baseband Functionalities62.5. Interface Specifications6Functional Architecture7INTERFACES8Pin Assignments8Pin description9Power Supply and Ground11Operating Modes12Analog to Digital Converter (ADC)13Power ON Control13Subscriber Identity Module (SIM) Interface144.8. Serial Link (UART) Interfaces154.9. USB Interface174.10. Analog Audio Interfaces18Microphone input18Speaker19Earphone204.11. General Purposes Input / Output ports21Keyboard Interface212-Wire Serial Interface22RF interface22RF Performance22Recommendations22Tamanho: 800 KBPáginas: 24Language: EnglishAbrir o manual
