Microchip DSC1001 series, XO (Standard), 125 MHz, CMOS output, MEMS base resonator, 4-SMD no-lead package, AEC-Q100 rated.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1001 |
| Mounting | Surface Mount |
| Supply voltage | 1.8V ~ 3.3V |
| Current - supply | 8.7mA |
| Current - supply (Disable) | 15µA |
| Frequency | 125 MHz |
| Frequency stability | ±10ppm |
| Operating temperature | -40°C~105°C |
| Size (Dimension) | 0.098\" L x 0.079\" W (2.50mm x 2.00mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tape & Reel (TR) |
| Ratings | AEC-Q100 |
| Function | Standby (Power Down) |
| Base resonator | MEMS |
| Case | 4-SMD, No Lead |
It replaces a quartz crystal + PLL chain with a single MEMS resonator, cutting BOM count and startup time. Supply voltage spans 1.8 V to 3.3 V — one part number covers the 1.8 V core rail and the 3.3 V I/O rail without a separate level translator.
Housed in a 4-SMD no-lead package, 2.50 mm x 2.00 mm, 0.90 mm seated height — the compact footprint fits tight ECU and sensor module layouts.
A MEMS resonator (used here) has no quartz crystal — it relies on a silicon micro-electromechanical structure. This gives faster startup (sub-ms vs ms for quartz), better shock/vibration tolerance, and a smaller footprint. The trade-off is typically slightly higher phase noise at very close-in offsets, though for most digital clocking (MCUs, FPGAs, Ethernet PHYs) the difference is negligible.
Yes. The standby (power-down) function disables the oscillator and puts the output into high-impedance state. Max supply current in standby is 15 µA, versus 8.7 mA active — this lets the system cut clock power during sleep without a separate load switch.