GS4915

GS4915 ClockCleaner™ Key Features Reduces jitter for clocks of 148.5MHz, 148.5/1.001MHz, 74.25MHz, 74.25/1.001MHz and 27MHz Output jitter as low as 20ps peak to peak Automatic bypass mode for all other clock rates Loop bandwidth adjustable as low as 2kHz Output skew control Input selectable as differential or single-ended Both single-ended and differential outputs Uses the GO1555 VCO Small 6mm x 6mm 40-pin QFN package Pb-free and RoHS compliant Applications High definition video systems. Digital video recording, playback, processing and display devices. Description The GS4915 provides a low jitter clock output when fed with an HD or SD video clock input. Other input clock frequencies between 12MHz and 165MHz can be automatically passed through to the GS4915 outputs. An internal 2:1 mux allows the user to select between a differential or single-ended (LVCMOS) input clock. Both a single-ended LVCMOS- compatible and an LVDS-compatible differential output are provided. The GS4915 may operate in either auto or fixed frequency mode. In auto mode, the device will automatically clean the selected input clock if its frequency is found to be one of the supported SD or HD clock rates. In fixed mode, the user selects only one of these frequencies to be cleaned. In addition, the device allows the user to select between auto or manual bypass operation. In autobypass mode, the GS4915 will automatically bypass its cleaning stage and pass the input clock signal directly t...