GENERAL DESCRIPTION

The ICS8737-11 is a low skew, high performance Differential-to-3.3V LVPECL Clock Generator/Divider and a member of the HiPerClockS? family of High Performance Clock Solutions from ICS. The ICS8737-11 has two selectable clock inputs. The CLK, nCLK pair can accept most standard differential input levels. The PCLK, nPCLK pair can accept LVPECL, CML, or SSTL input levels.The clock enable is internally synchronized to eliminate runt pulses on the outputs during asynchronous assertion/deassertion of the clock enable pin.

FEATURES

? 2 divide by 1 differential 3.3V LVPECL outputs;

2 divide by 2 differential 3.3V LVPECL outputs

? Selectable CLK, nCLK or LVPECL clock inputs

? CLK, nCLK pair can accept the following differential input

levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL

? PCLK, nPCLK supports the following input types:

LVPECL, CML, SSTL

? Maximum output frequency up to 650MHz

? Translates any single ended input signal (LVCMOS, LVTTL,

GTL) to LVPECL levels with resistor bias on nCLK input

? Output skew: 60ps (maximum)

? Part-to-part skew: 200ps (maximum)

? Bank skew: Bank A - 20ps (maximum),

Bank B - 35ps (maximum)

? Propagation delay: 1.7ns (maximum)

? 3.3V operating supply

? 0°C to 70°C ambient operating temperature

? Industrial temperature information available upon request