Dual-frequency MEMS oscillator for telecom and video timing
The DSC400-0101Q0096KI1T is a MEMS-based XO (Standard) from Microchip that provides two independent LVCMOS clock outputs: 14.7456 MHz and 148.5 MHz, held to ±50 ppm stability across the full –40°C to +85°C industrial temperature range. The 14.7456 MHz output is a standard baud-rate generator for UART/USART interfaces; the 148.5 MHz output matches the SMPTE 274M pixel clock for 1080p video at 60 Hz, making this oscillator a single-component timing source for combined serial-communication and video-processing boards.
Supply range, output type, and enable/disable function
Operating from a single 2.25V to 3.6V supply, the DSC400-0101Q0096KI1T can be powered directly from a 2.5V or 3.3V rail without an intermediate regulator—simplifying the power tree and reducing BOM count. The LVCMOS output is compatible with 1.8V, 2.5V, and 3.3V logic families, so no level translator is needed when feeding FPGA clock inputs or MCU oscillator pins.
Package, footprint, and layout considerations
The oscillator is housed in a 20-VFQFN with exposed pad, measuring 5.00mm x 3.20mm with a height of 0.90mm.