Microchip DSC1122CE5-048.0000T, 48 MHz XO (Standard) with LVPECL output, ±10 ppm stability, 2.25 V–3.6 V supply, -20°C to 70°C, 6-SMD no-lead 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 | 48 MHz |
| Frequency stability | ±10ppm |
| 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 | LVPECL |
| Package | Tape & Reel (TR) |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead |
LVPECL output delivers the differential swing needed for high-speed serial links — think SFP+ modules, 10 GbE MAC-to-PHY clocks, or PCIe reference clocks — where a single-ended CMOS clock would leave the data eye closed.
The supply range spans 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V rails without an intermediate regulator — one less part on the power tree.
The frequency stability is ±10 ppm over the -20°C to 70°C operating range. This is tight enough for most Ethernet and Fibre Channel reference clocks without needing a separate TCXO.
It also works on 2.5 V without a regulator change.
The DSC1122 series uses a MEMS resonator instead of a quartz crystal, but the 6-SMD no-lead footprint and electrical interface are standard — it drops into the same PCB pads as a quartz XO with the same pinout. The Enable/Disable function matches the industry-standard control logic.