DESCRIPTIONS

The PLL102-109 is a zero delay buffer that distributes a single-ended clock input to six pairs of differential clock outputs and one feedback clock output. Output signal duty cycles are adjusted to 50, independent of the duty cycle at CLK_INT. The PLL can be bypassed for test purposes by strapping AVDD to ground.

FEATURES

• PLL clock distribution optimized for Double Data Rate SDRAM application up to 266Mhz.

• Distributes one clock Input to one bank of six differential outputs.

• Track spread spectrum clocking for EMI reduction.

• Programmable delay between CLK_INT and CLK[T/C] from –0.8ns to +3.1ns by programming CLKINT and FBOUT skew channel, or from –1.1ns to +3.5ns if additional DDR skew channels are enabled.

• Two independent programmable DDR skew channels from –0.3ns to +0.4ns with step size ±100ps.

• Support 2-wire I2C serial bus interface.

• 2.5V Operating Voltage.

• Available in 28-Pin 209mil SSOP.