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"As data-intensive applications proliferate among wireless subscribers, the mobile phone market will continue to be one of the central drivers of increased USB integration," said In-Stat analyst Brian O'Rourke. "Handset vendors will seek new, more efficient ways of including USB in their next handset, and chip vendors, like NXP, are working to align closely with their needs." "NXP has closely collaborated with major mobile phone vendors, to address their concerns when designing USB capability into the newest lines of chic mobile handsets and to ensure end users receive reliable USB connection during the transfer of data, music and video," said Paul Marino, vice president and general manager of business line connectivity, NXP Semiconductors. "Our new generation of transceivers provides handset OEMs with choices for the features that matter most to them, such as small footprint, ultra low power, ULPI SDR and DDR modes, USB OTG, support for different system frequencies and transparent UART modes, among others."
ULPI Hi-Speed USB transceiver
NXP's family of new generation ULPI Hi-Speed USB transceivers contains four members - ISP1504x1, ISP1508, ISP1702 and ISP1703, all of which are fully compliant with industry specifications, including ULPI Rev. 1.1, USB On-The-Go Rev. 1.2 and USB Rev. 2.0. Catering to the special needs of mobile phones, all transceivers support a mobile phone's wider range of input supply voltage of 3.0 V to 4.5 V. A new power-down mode conserves battery with an ultra low-power consumption of less than 0.5 µA when the USB transceiver is not in use.
Hi-Speed USB transceiver for cellphones
This initial range of second-generation ULPI transceivers have host, peripheral and OTG functions. ISP1508, ISP1702 and ISP1703 address lower system voltage levels with their VCC(I/O) of 1.4 V to 1.95 V, and some can be pin-selected to be in single data rate or double data rate interface operation. Additionally, all three parts can support USB charger detection, and external charge pump for OTG function. The ULPI transceiver interface, upon which NXP's second-generation ULPI Hi-Speed USB transceivers are based, was developed by an industry consortium to allow chips and systems designers to connect a Hi-Speed USB transceiver to USB core logic embedded in application-specific integrated circuits (ASICs) and systems-on-chip (SoCs). By using the ULPI standard interface instead of proprietary interfaces, ASIC and SoC designers can reduce design time, simplify testing and ensure interoperability with USB transceivers.
NXP Hi-Speed USB transceiver - Price & Availability
NXP's ISP504x1, ISP1508 and ISP1702 devices are sampling now, with the first two products in mass production in March and April respectively. For further information regarding the availability of ISP1703, please contact NXP. Pricing for each device is as follows: $1.30 (US) for ISP1504x1, $1.20 (US) for ISP1702, and $1.10 (US) for ISP1508 and ISP1703, all in high-volume quantities.
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