Microchip Technology DSC1124CE1-100.0000T, XO (Standard) MEMS oscillator, 100 MHz fixed frequency, HCSL output, ±50 ppm stability, 2.25V–3.6V supply, -20°C to 70°C, 6-SMD no-lead package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1124 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 42mA |
| Current - supply (Disable) | 22mA |
| Frequency | 100 MHz |
| Frequency stability | ±50ppm |
| Operating temperature | -20°C~70°C |
| Size (Dimension) | 0.126\" L x 0.098\" W (3.20mm x 2.50mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | HCSL |
| Package | Tape & Reel (TR) |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead |
The 2.25V to 3.6V supply range means the oscillator can share a 2.5V or 3.3V rail without an intermediate LDO — one less component on the BOM. At 42 mA max from a 3.3V rail, the power dissipation is 139 mW — the 6-SMD no-lead package (3.20 mm x 2.50 mm footprint, 0.90 mm seated height) handles this without thermal concerns in still air.
±50 ppm over the full -20°C to 70°C operating range. This is tight enough for PCIe Gen 1/2/3 reference clocks without a TCXO.
RoHS compliance is standard for the DSC1124 series. Confirm with the datasheet for the specific date code on your BOM.
Yes — it is a drop-in MEMS replacement for a 100 MHz quartz XO in a 6-SMD package. The HCSL output is differential, so the board must have the correct 100-ohm differential termination; a single-ended quartz oscillator will not be a direct swap without layout changes.
The rest of the parametric — 100 MHz, HCSL, ±50 ppm — is identical.
The DSC1124 outputs HCSL; the DSC1123 outputs LVDS. Both are MEMS XOs with the same package and supply range — the output format is the only difference. Choose the one that matches your downstream receiver's input standard.