TriQuint’s TQ1089 is a configurable clock buffer which generates 11 outputs, operating over a wide range of frequencies from 65 MHz to 90 MHz and from 130 MHz to 180 MHz. The outputs are available at either 1x and 2x or at 1x and 1/2 x the reference clock frequency, fREF . When one of the Group A outputs (Q0–Q8) is used as feedback to the PLL, all Group A outputs will be at fREF , and all Group B outputs (Q9, Q10) will be at 2x fREF . When one of the Group B outputs is used as feedback to the PLL, all Group A outputs will be at 1/2 x fREF and all Group B outputs will be at fREF .

Features

• Wide frequency range: 65 MHz to 90 MHz and 130 MHz to 180 MHz

• Output configurations: eight outputs at fREF two outputs at 2x fREF or nine outputs at 1/2 x fREF one output at fREF

• Low output-to-output skew: 150 ps (max) within a group

• Near-zero propagation delay –350 ps + 500 ps (max) or –350 ps +700 ps (max)

• TTL–compatible with 30 mA output drive

• 28–pin J–lead surface–mount package

• Ideal for PowerPC ™–based designs