Product category:
Communications ICs (Wired)
News Release from: Nu Horizons Electronics Corp | Subject: 5V9885xxGI
Edited by the Electronicstalk Editorial
Team on 02 February 2006
Clock generators are versatile
performers
IDT's latest family of programmable clock generators feature an enhanced multiple-PLL architecture to provide improved versatility and performance.
IDT's latest family of programmable clock generators is now available from DT Electronics The 5V9885xxGI devices leverage the EEPROM-based programmable platform from previous generations and feature an enhanced multiple-phase-locked loop (PLL) architecture to provide improved versatility and performance
This article was originally published on Electronicstalk on 7 Jul 2008 at 8.00am (UK)
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An IEEE1149.1a compliant JTAG interface for both programming and boundary scan is provided.
Applications include communications, digital consumer and industrial markets.
The 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.
DT 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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