Dual-frequency MEMS oscillator for timing-tree consolidation
The DSC400-0101Q0114KE1 delivers two independent LVCMOS clock outputs from a single MEMS resonator: 12 MHz and 12.288 MHz. That second frequency is the standard audio sample-rate clock (256× Fs at 48 kHz), so a single oscillator can serve both the MCU core and the audio codec or S/PDIF interface without a separate PLL. Supply voltage spans 2.25V to 3.6V, covering 2.5V and 3.3V logic rails without an external regulator.
Product status is Active per Microchip's current lifecycle designation.
Housed in a 20-VFQFN with exposed pad, 5.00 mm × 3.20 mm body, 0.90 mm height. For a 12 MHz output, that is ±600 Hz absolute error — well within the tolerance of most UART and Ethernet PHY reference clocks.