Infineon Makes UMTS Phones Usable Worldwide
Mobile radio devices include a radio-frequency transceiver which is responsible for transmitting and receiving the signals. The term transceiver is a composite formed from the two words transmitter and receiver. Prior to transmission, the SMARTi 3G converts the electronic signals for voice or data into high-frequency signals and amplifies them. It converts received high-frequency signals into low-frequency electronic signals, which are then converted into voice and data in the phones processor.
Samples of the SMARTi 3G are already available and leading manufacturers worldwide are integrating the chip into the next generation of UMTS handsets. Infineon is a major player when it comes to transmit and receive electronics for mobile phones. Last year the company sold more than 170 million transceiver chips. This means that roughly one in four mobile phones worldwide operates with an Infineon transceiver.
The SMARTi 3G chip is manufactured using silicon process technology with microstructures of only 130 nanometers (a human hair is 500 times thicker). At 7.2 megabits per second, it meets the requirements of next-generation UMTS telephones for data transmission from the base station to the mobile device. The chip was developed in Germany and Austria and is produced in France.