Description

The 8V41N012A is a PLL-based clock generator specifically

designed for Cavium Networks Octeon II processors. This

high-performance device is optimized to generate the processor

core reference clock, the PCI-Express, sRIO, XAUI, SerDes

reference clocks, and the clocks for both the Gigabit Ethernet

MAC and PHY. The output frequencies are generated from a

25MHz external input source or an external 25MHz parallel

resonant crystal.

The industrial temperature range of the 8V41N012A supports

telecommunication, networking, and storage requirements.

Features

▪ Ten selectable 100MHz, 125MHz, 156.25MHz and 312.5MHz

clocks for PCI Express, sRIO, and GbE, HCSL interface levels

▪ One single-ended QG LVCMOS/LVTTL clock output at 125MHz

▪ One single-ended QF LVCMOS/LVTTL clock output at 50MHz

▪ Two single-ended QREFx LVCMOS/LVTTL outputs at 25MHz

▪ Selectable external crystal or differential (single-ended)

input source

▪ Crystal oscillator interface designed for 25MHz, parallel

resonant crystal

▪ Differential CLK, nCLK input pair that can accept: LVPECL,

LVDS, LVHSTL, and HCSL input levels

▪ Internal resistor bias on nCLK pin allows the user to drive CLK

input with external single-ended (LVCMOS/ LVTTL) input levels

▪ Supply Modes, (125MHz QG output and 25MHz QREFx

outputs):

• Core / Output

• 3.3V / 3.3V

• 3.3V / 2.5V

▪ Supply Modes, (HCSL outputs, and 50MHz QF output):

• Core / Output

• 3.3V / 3.3V

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

▪ 10 x 10 mm 72-VFQFPN, lead-free (RoHS 6) packaging