Microchip DSC1121 series MEMS XO, 40 MHz CMOS output, ±25 ppm stability, AEC-Q100 qualified, 6-SMD 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 | 40 MHz |
| Frequency stability | ±25ppm |
| Operating temperature | -40°C~85°C |
| Size (Dimension) | 0.197\" L x 0.126\" W (5.00mm x 3.20mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tape & Reel (TR) |
| Ratings | AEC-Q100 |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead |
Operating from 2.25V to 3.6V, this oscillator covers 2.5V and 3.3V rails common in automotive ECUs, eliminating the need for a dedicated LDO in many designs.
Housed in a 6-SMD, No Lead package measuring 5.00 mm x 3.20 mm with a seated height of 0.90 mm — a standard 5.0 x 3.2 mm oscillator footprint that matches many quartz XO land patterns.
This includes initial tolerance, temperature drift, and aging effects — sufficient for most automotive CAN, LIN, and MCU clock domains.
Yes, it is rated AEC-Q100, meaning it has passed automotive-grade reliability stress tests including temperature cycling, ESD, and latch-up.
The 5.0 x 3.2 mm 6-SMD footprint is pin-compatible with many standard quartz oscillators of the same size. However, the MEMS resonator has different startup behavior and phase-noise profile — verify the jitter budget in your PLL or SERDES application before substituting.