The DSC1121AI2-148.5000T: An enable/disable pin lets the system gate the output; when disabled the oscillator draws 22 mA max, versus 35 mA max when active.
Listed as Active by Microchip — the part is in production and suitable for new designs.

Microchip Technology DSC1121 series MEMS XO (Standard), 148.5 MHz CMOS output, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 6-SMD package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 22mA |
| Frequency | 148.5 MHz |
| Frequency stability | ±25ppm |
| Operating temperature | -40°C~85°C |
| Size (Dimension) | 0.276\" L x 0.197\" W (7.00mm x 5.00mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead Exposed Pad |
The DSC1121AI2-148.5000T: An enable/disable pin lets the system gate the output; when disabled the oscillator draws 22 mA max, versus 35 mA max when active.
Listed as Active by Microchip — the part is in production and suitable for new designs.
148.5 MHz.
Yes, the function is Enable/Disable.