Microchip DSC400 series MEMS XO, dual-output 12.288 MHz and 100 MHz, HCSL/LVCMOS, ±50 ppm stability, 2.25-3.6 V supply, 20-VFQFN exposed pad package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC400 |
| Supply voltage | 2.25V ~ 3.6V |
| Frequency stability | ±50ppm |
| Frequency - output 1 | 12.288MHz |
| Frequency - output 2 | 100MHz |
| Operating temperature | -20°C~70°C |
| Height | 0.035\" (0.90mm) |
| Size (Dimension) | 0.197\" L x 0.126\" W (5.00mm x 3.20mm) |
| Output | HCSL, LVCMOS |
| Package | Tape & Reel (TR) |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 20-VFQFN Exposed Pad |
It operates from a 2.25 V to 3.6 V supply and maintains ±50 ppm frequency stability over the -20°C to +70°C commercial temperature range.
Housed in a 20-VFQFN with exposed pad (5.00 mm x 3.20 mm, 0.90 mm height), the DSC400 requires a thermal pad on the PCB for heat dissipation — the exposed pad should be soldered to a ground plane copper pour for optimal thermal and electrical performance.
It remains a valid choice for new designs.
It outputs 12.288 MHz and 100 MHz, configurable as HCSL or LVCMOS. The dual-frequency capability lets a single oscillator feed two clock domains — for example, a 100 MHz reference for a SerDes and a 12.288 MHz audio clock — reducing BOM count.