General Description

The IDT8T79S818I-08 is a high performance, 1-to-8, differential input

to universal output clock divider and fanout buffer. The device is

designed for frequency-division and signal fanout of high-frequency

clock signals in applications requiring four different output

frequencies generated simultaneously. Each bank of two outputs has

a selectable divider value of ÷1 through ÷6 and ÷8. The

IDT8T79S818I-08 is optimized for 3.3V and 2.5V supply voltages and

a temperature range of -40°C to 85°C. The device is packaged in a

space-saving 32 lead VFQFN package.

Features

• Four banks of two low skew outputs

• Selectable bank output divider values: ÷1 through ÷6 and ÷8

• One differential PCLK, nPCLK input

• PCLK, nPCLK input pair can accept the following differential input

levels: LVPECL, LVDS levels

• Maximum input frequency: 1.5GHz

• LVCMOS control inputs

• QXx ÷1 edge aligned to QXx ÷n edge

• Individual output divider control via serial interface

• Individual output enable/disable control via serial interface

• Individual output type control, LVDS or LVPECL, via serial

interface

• 2.375V to 3.465V supply voltage operation

• -40°C to 85°C ambient operating temperature

• Lead-free (RoHS 6) packaging