New Device Adds Spread Spectrum to Systems Needing EMI Reduction Without Replacing Clock Source
SAN JOSE, Calif., September 28, 2009 – IDT® (Integrated Device Technology, Inc.; NASDAQ: IDTI), a leading provider of essential mixed signal semiconductor solutions that enrich the digital media experience, today announced the industry’s first spread injection buffer — the IDT spread injection PLL. This differential buffer is designed to add spread spectrum, which reduces electromagnetic interference (EMI) in a device, to systems that use a non-spreading clock source, helping improve signal quality and performance in the end device. The IDT spread injection PLL can add spread spectrum without replacing the original clock source in systems, providing design flexibility while saving design time.
Uniquely, the IDT 9DS800 device does not use a crystal oscillator to generate spread. Instead, the IDT spread injection PLL takes in a 100MHz differential clock and adds spread to it to reduce EMI, thereby improving signal integrity. Then, the device makes eight copies of the 100MHz differential clock with spread added for use throughout the system, helping further reduce EMI and improve signal integrity. In addition, the IDT 9DS800 allows the user to turn spread on and off and to select the amount of spread needed via pin selection or the SMBus interface, allowing for greater design flexibility.
Rather than replace a non-spreading clock source with a pin-compatible spread spectrum clock source, the IDT 9DS800 can simply be added to the board, reducing the design time. Since the IDT 9DS800 is footprint compatible with the popular IDT 9DB803 PCI Express® (PCIe®) Gen 2 buffer, spread can be added without board redesigns or shielding, saving design time.
The IDT spread injection PLL is PCI Express Gen 2 compliant and can be used in any general purpose design where spread spectrum needs to be added to a 100MHz differential clock source.
Pricing and Availability
The IDT spread injection PLL is available in 48 TSSOP, 48 SSOP, and 24 TSSOP packages. The devices are currently available and are priced at $2.50 in 10,000 unit quantities. For additional product information on the IDT spread injection PLL, visit
IDT is a leading provider of timing solutions for communication, storage, industrial and digital consumer applications. The IDT portfolio of silicon timing devices offers differentiated solution elements, such as programmable platform, precision technology, advanced I/O and stratum-compliant synchronization. Specific families include devices for clock generation, programmable skew, zero delay and non-Phase Locked Loop (PLL)-based clock fanout. For additional information on IDT timing solutions, visit
With the goal of continuously improving the digital media experience, IDT integrates its fundamental semiconductor heritage with essential innovation, developing and delivering low-power, mixed signal solutions that solve customer problems. Headquartered in San Jose, Calif., IDT has design, manufacturing and sales facilities throughout the world. IDT stock is traded on the NASDAQ Global Select Stock Market® under the symbol “IDTI.” Additional information about IDT is accessible at
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