Microchip Technology DSC1101 series XO (Standard), 20 MHz CMOS output, ±25ppm stability, 2.25V~3.6V supply, Standby (Power Down) function, -40°C~105°C, 6-SMD No Lead package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1101 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 95µA |
| Frequency | 20 MHz |
| Frequency stability | ±25ppm |
| 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 | CMOS |
| Package | Tube |
| Function | Standby (Power Down) |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead |
The 2.25V to 3.6V supply range lets the oscillator run from a 2.5V or 3.3V rail without an external LDO.
Housed in a 6-SMD No Lead package measuring 3.20mm x 2.50mm with a seated height of 0.90mm. The 0.50mm pitch pads require a clean solder-paste stencil aperture and a via-in-pad escape for the centre ground pad if the datasheet recommends it.
A MEMS resonator is less sensitive to shock and vibration than a quartz crystal, and it typically starts up faster (microseconds vs milliseconds). The trade-off is that the phase-noise floor may be higher than a good quartz oscillator, so for jitter-sensitive PLLs or high-speed ADCs, check the phase-noise plot in the datasheet — the ±25ppm stability here is comparable to a standard quartz XO.
The Standby (Power Down) pin disables the output and shuts down the oscillator core, drawing 95µA max. When the pin is de-asserted, the output resumes after the startup time. This is a hardware gating signal — it does not require an I2C or SPI command.