Typical Application for LTC4557 Dual SIM/Smart Card Power Supply and Interface
Справочный проект от: Analog Devices
Typical Application for LTC4557 Dual SIM/Smart Card Power Supply and Interface. The LTC4557 provides power conversion and signal level translation needed for 2.5G and 3G cellular telephones to interface with 1.8V or 3V subscriber identity modules (SIMs)