JAJSF03K September 2011 – December 2023 LMK03806
PRODUCTION DATA
The LMK03806 provides 2 dedicated outputs which are a buffered copy of the PLL reference input. This reference input is typically a low noise external clock or Crystal.
The OSCout0 buffer output type is programmable to LVDS, LVPECL, or LVCMOS. The OSCout1 buffer is fixed to LVPECL.
The dedicated output buffers OSCout0 and OSCout1 can output frequency lower than the Input frequency by programming the OSC Divider. The OSC Divider value range is 1 to 8. Each OSCoutX can individually choose to use the OSC Divider output or to bypass the OSC Divider.
Crystal buffered outputs cannot be synchronized to the VCO clock distribution outputs. The assertion of SYNC will still cause these outputs to become low. Since these outputs will turn off and on asynchronously with respect to the VCO sourced clock outputs during a SYNC, it is possible for glitches to occur on the buffered clock outputs when SYNC is asserted and unasserted. If the NO_SYNC_CLKoutX_Y bits are set these outputs will not be affected by the SYNC event except that the phase relationship will change with the other synchronized clocks unless a buffered clock output is used as a qualification clock during SYNC.