Microchip DSC1121DI5-034.3680, XO (Standard) MEMS oscillator, 34.368 MHz CMOS output, ±10 ppm frequency stability, 2.25V~3.6V supply, -40°C~85°C, 6-SMD no-lead package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 22mA |
| Frequency | 34.368 MHz |
| Frequency stability | ±10ppm |
| Operating temperature | -40°C~85°C |
| Size (Dimension) | 0.098\" L x 0.079\" W (2.50mm x 2.00mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tube |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead |
The DSC1121DI5-034.3680 is a MEMS-based XO (Standard) that outputs a 34.368 MHz CMOS clock — a direct-fit replacement for quartz oscillators in the same 6-SMD no-lead footprint.
The supply range spans 2.25V to 3.6V, covering both 2.5V and 3.3V logic rails without a separate LDO.
Both are MEMS oscillators in the DSC112x family with the same package, supply range, and temperature grade. The DSC1122 series typically offers a different output type or feature set — confirm the output (CMOS vs LVDS vs HCSL) and the enable/disable polarity for your BOM position before substituting. The DSC1121DI5-034.3680 is a standard CMOS XO with active-high enable.
Yes — the 6-SMD no-lead footprint matches the common quartz oscillator land pattern, and the CMOS output is compatible with most clock inputs. The MEMS part does not require external load capacitors and offers better shock and vibration immunity than quartz. Confirm the supply voltage (2.25V-3.6V) and the enable/disable function match the original oscillator's pinout.
Yes — the supply range is 2.25V to 3.6V, so a 3.3V rail is within spec. The CMOS output swings rail-to-rail, so the logic-high level matches 3.3V CMOS inputs directly.