Dual-frequency MEMS oscillator for video clocking
The DSC6121CI2A-00AJ: These frequencies are the standard pixel clocks for 1080p video at 59.94 Hz and 60 Hz respectively, making this part a direct fit for HDMI, SDI, or broadcast video timing chains.
Supply and output compatibility
Typical current draw is 3 mA — low enough for battery-backed or power-budgeted designs where every milliamp counts.
Obsolete — sourcing through independent channels
Microchip lists the DSC6121CI2A-00AJ as Obsolete. Because the dual-frequency output (74.1758/74.25 MHz) is tightly coupled to video standards, a replacement would need to match both frequencies in a single package — a parametric search on MEMS XOs with those exact outputs and a 4-VDFN footprint is the practical cross-reference path.