Microchip Technology DSC1224CL1-100M0000, XO (Standard) 100 MHz, HCSL output, MEMS resonator, 6-VDFN surface-mount, -40°C to 105°C, 2.5V to 3.3V supply.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1224 |
| Mounting | Surface Mount |
| Supply voltage | 2.5V ~ 3.3V |
| Current - supply | 40mA (Typ) |
| Current - supply (Disable) | 23mA (Typ) |
| Frequency | 100 MHz |
| Frequency stability | ±50ppm |
| Operating temperature | -40°C~105°C |
| Size (Dimension) | 0.126\" L x 0.098\" W (3.20mm x 2.50mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | HCSL |
| Package | Tube |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-VDFN |
The DSC1224CL1-100M0000 is a 100 MHz fixed-frequency XO from Microchip's DSC1224 series, delivering an HCSL (High-Speed Current Steering Logic) output — a differential standard common in PCIe reference clocks and high-speed SERDES applications.
The 2.5V to 3.3V supply range means it can run directly off a 3.3V or 2.5V rail without an intermediate regulator — the internal LDO regulates down to the MEMS core voltage.
HCSL (High-Speed Current Steering Logic) uses a current-mode output with a 0.7V swing centered around 0.4V, while LVDS uses a 1.2V common-mode voltage with a 350 mV swing. HCSL is the standard for PCIe reference clocks; LVDS is more common in SerDes and backplane clock distribution. The two are not pin-compatible — the termination and input threshold differ.