Microchip DSC1122BI1-125.0000, XO (Standard) MEMS oscillator, 125 MHz LVPECL output, ±50ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 6-SMD package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1122 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 58mA |
| Current - supply (Disable) | 22mA |
| Frequency | 125 MHz |
| Frequency stability | ±50ppm |
| Operating temperature | -40°C~85°C |
| Size (Dimension) | 0.197\" L x 0.126\" W (5.00mm x 3.20mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | LVPECL |
| Package | Tube |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead |
Its 2.25V to 3.6V supply range means it runs directly off a 2.5V or 3.3V rail — no extra LDO, no level translation.
The 6-SMD, No Lead package measures 5.00 mm x 3.20 mm with a seated height of 0.90 mm — a standard footprint that matches many quartz oscillator pads, so a board designed for a 5x3.2 mm can often take this MEMS part without a layout change.
Differential LVPECL — a high-speed, low-jitter output that pairs with LVPECL-terminated clock inputs on FPGAs, ADCs, and SerDes devices. The 125 MHz frequency is common for Ethernet PHY reference clocks and data-converter sampling clocks.
Active. Microchip lists it as current production — no end-of-life or last-time-buy window. You can design it into new builds and replenish existing BOM lines without a forced migration.
Yes. The supply range is 2.25V to 3.6V, so a 2.5V rail is well within spec. No external regulator needed — just connect the rail and the Enable pin to Vdd if you want the oscillator running continuously.
6-SMD, No Lead, 5.00 mm x 3.20 mm body, 0.90 mm seated height. This matches the common 5x3.2 mm oscillator footprint used by many quartz and MEMS XOs — a board laid out for that size can usually accept this part without a layout revision.