20 MHz MEMS oscillator with LVDS – what it replaces
The DSC1123CI2-020.0000 is a 20 MHz fixed-frequency MEMS oscillator from Microchip's DSC1123 series, delivering an LVDS output that eliminates the need for a separate quartz crystal plus PLL when the target clock is exactly 20 MHz and the interface requires differential signaling.
The 2.25V to 3.63V supply range means the oscillator runs directly from a 2.5V or 3.3V rail without a dedicated LDO — the same BOM line serves both voltage domains.
Package and footprint – 6-SMD no-lead
Housed in a 6-SMD no-lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm, the DSC1123CI2-020.0000 fits the standard 3.2 x 2.5 mm oscillator footprint — a drop-in replacement for quartz oscillators of the same size and pinout.