EINDHOVEN, The Netherlands -- Philips Semiconductors today introduced a USB 2.0 peripheral transceiver, concurrently with the release official release of the USB 2.0 specification (see today's story).
USB 2.0 has a target speed for data transfer rate of 480 megabits per second, or is 40 times faster than the existing USB 1.1 standard.
The new ISP1501 peripheral transceiver, the first of Philips Semiconductors' USB 2.0 product offerings, provides easy-to-use connections between computers and peripheral devices. The increased bandwidth of USB 2.0 opens the door to new peripherals applications such as faster broadband Internet connections, higher-resolution video conferencing cameras, next-generation printers and scanners and fast external storage units.
For example, a gigabyte of data from a PC hard drive can be backed up in less than a minute compared to about a quarter of an hour on the earlier version, said Philips. And the new 2.0 standard is compatible with the USB 1.1 standard, so products can be migrated to the faster standard easily.
"As part of the working group that developed the USB 2.0 specification, Philips Semiconductors is proud to be one of the first companies to introduce a USB 2.0 product," said Wei Leong Chui, USB technical marketing manager at Philips Semiconductors. "Our broad experience in USB products has helped us with our time-to-market for this new product, and also helps us to consult with customers who are designing in USB capabilities."
The Philips ISP1501 is a full-function transceiver designed to be used as a USB 2.0 analog front-end for ASICs and FPGAs with built-in USB Serial Interface Engine (SIE) cores. It features a 16-bit bi-directional data bus for USB 2.0 data. This allows for FPGA verification with data clocking at 30 MHz.
Design risk is greatly reduced through the FPGA verification stage before the design goes into the actual production ASIC. The full-speed transceiver for USB1.1 uses the legacy interface. A designer with USB 1.1 experience can leverage USB 1.1 development effort with little or no change to the existing USB 1.1 core interface, Philips said.
The new ISP1501 transceiver is designed for bus-powered applications, so it can be used in self-powered, hybrid-powered or bus-powered environments. Integrated bit stuffing and unstuffing, and corresponding Non-Return-to-Zero Inverted (NRZI) encoding and decoding are included for high-speed data transmission. Integrated phase locked loop (PLL) uses an external 12-MHz crystal running on the fundamental frequency or an external 12MHz clock input, so no passive resistor or inductor is required. Since the 12-MHz crystal is widely available, lower costs can be achieved, the company said.
Samples of the ISP1501 in an LQFP48 package will be available in May, with production quantities planned two months later. The transceiver is priced at $2 in quantities of 50,000.