ON Semiconductor Introduces Two New Shifter Analog ICs
ON Semiconductor (Phoenix, AZ) recently introduced two level shifter analog ICs, designed to translate the voltages between a SIM card and an external microcontroller. ON Semi claims that the new ICs, referred to as the NCN6010 and NCN6011, offer the smallest and simplest circuit solution for SIM cards in portable global system for mobile communications (GSM) and other cellular phones.
The NCN6010 and NCN6011 provide the power conversion, digital signal, level-shifting, and ESD protection of 6kV and 4kV, respectively, needed for 3V or 5V GSM cellular telephone SIMs. The NCN6010/11 SIM supply and level shifters integrate a programmable 3V or 5V SIM supply, conformable to the GSM test specification 11.10, together with either a 3V or 5V level shifter, fully compliant to the GSM specification 11.11 and 11.12 (for 3V).
ON Semiconductor designed the NCN6010 with a built-in dc/dc converter. The NCN6011 device handles all the signals needed to control the data transaction between the external and the MPU. Both devices interface with external MPUs, enabling access to a dedicated input “stop” pin that provides a way to switch off the power applied to the SIM card in case of failure or when the card is removed. A charge pump, utilizing two external capacitors, is configured as a voltage doubler to generate a 5V supply rail from the interface power supply input. Depending on the SIM card used, a control signal coming from the SIM card controller is applied on the “mode” terminal to switch between a 3V or 5V supply on the interface IC card power supply output terminal.
ON Semiconductor offers the NCN6010 and NCN6011 devices in the TSSOP-14 package, with samples and production quantities currently available. For the NCN6010, the suggested resale pricing is $1.11 for 10,000 units. For the NCN6011, the suggested resale pricing is $0.83 for 10,000 units.
