Microchip DSC1121 series MEMS XO, 49.152 MHz, CMOS output, 2.25V to 3.6V supply, -40°C to 85°C, 6-VDFN package, Enable/Disable function.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 22mA |
| Frequency | 49.152 MHz |
| Operating temperature | -40°C~85°C |
| Size (Dimension) | 0.126\" L x 0.098\" W (3.20mm x 2.50mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tape & Reel (TR) |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-VDFN |
| Absolute pull range | ±25ppm |
The DSC1121CI2-049.1520T is a MEMS-based XO (standard oscillator) delivering a 49.152 MHz CMOS output — a clock rate common in audio sample-rate conversion, Ethernet PHY reference clocks, and serial data links that need a precise 49.152 MHz fundamental. Its 2.25V to 3.6V supply range means the same part can be dropped into a 2.5V or 3.3V clock tree without a separate level translator, simplifying BOM consolidation.
Yes. The Enable/Disable function lets you gate the output, reducing supply current from 35 mA to 22 mA when the clock is not needed.
CMOS. It drives standard CMOS logic levels directly, compatible with most MCU, FPGA, and PHY clock inputs.
Yes. The 2.25V to 3.6V supply range includes 3.3V, so the oscillator can be powered from a 3.3V rail and its CMOS output drives 3.3V logic levels directly.