Quad-Output MEMS XO for Timing-Sensitive Buses
The MEMS resonator provides inherent jitter performance and shock resistance compared to quartz-based oscillators, with a supply voltage range of 2.25V to 3.6V, allowing direct connection to 2.5V or 3.3V rails without an external regulator.
The 20-VFQFN exposed pad package (5.00mm x 3.20mm, 0.90mm height) requires a thermal via pattern under the pad for adequate heat dissipation when the device is operating near the upper temperature limit. Frequency stability of ±50 ppm covers temperature, supply, and aging drift — sufficient for 1 GbE and PCIe Gen1/2 applications. For tighter-precision needs (25 ppm or better), a quartz-based TCXO or the DSC600 series with ±25 ppm option would be required.
Active Lifecycle and Sourcing Profile
The Enable/Disable function allows power savings in multi-clock systems by gating outputs without removing supply voltage. Supplied in Tape & Reel (TR) — standard for automated pick-and-place. The DSC400 series is the base product number; the full suffix encodes the output frequency configuration and stability grade. No direct second-source exists; functional equivalents from SiTime or IDT would require a different pinout and board layout.