Product category:
Programmable Logic Devices
News Release from: IDT | Subject: 5V9885PFGI, 5V9885NLGI
Edited by the Electronicstalk Editorial
Team on 06 May 2005
Programmable clock generators boast
three PLLs
Integrated Device Technology has a new family of programmable clock generators designed to address the evolving needs of next-generation clock networks.
Integrated Device Technology has a new family of programmable clock generators designed to address the evolving needs of next-generation clock networks The new family (5V9885PFGI, 5V9885NLGI) leverages the EEPROM-based programmable platform from previous generations of IDT programmable clocks along with an enhanced, multiple phase-locked loop (PLL) architecture to provide customers with a combination of versatility and performance
This article was originally published on Electronicstalk on 12 Apr 2001 at 8.00am (UK)
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The inclusion of an IEEE1149.1a compliant JTAG interface for both programming and boundary scan is representative of the company's commitment to providing timing devices that address the needs of both designers and manufacturers.
The performance and features of these new programmable clock generators make them suitable for a wide range of applications in the communications, digital consumer and industrial markets.
The innovative three-PLL architecture includes ultra-high-resolution prescalers, multipliers and output dividers with VCO ranges up to 1GHz to enable nearly any combination of clock scaling ratios from a single input frequency.
Two of the internal PLLs include selectable spread-spectrum modulators with fully programmable characteristics such as spread frequency and ratio.
This feature is especially useful to minimise the EMI induced by clock signals and enables system designs to meet stringent regulatory requirements.
In addition, each PLL also supports programmable loop filter settings to optimise jitter performance in customer applications.
An I2C compatible interface is available (as an alternative to JTAG) to program the internal EEPROM, which allows users to save and restore device configurations at any stage of procurement, manufacturing or deployment.
Advanced I/O capabilities support universal input logic and LVTTL, LVPECL and LVDS output types.
In addition, the devices offer dual reference inputs with glitchless switchover and support both crystal and driven reference sources.
To support its portfolio of programmable clock products, IDT offers user-friendly software that quickly generates programming code based on the user's requirements.
The company also offers a device programming kit for prototyping and lab testing, as well as an evaluation board that allows customers to test the features and performance of the programmable clock products with ease.
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