156.2539 MHz LVDS MEMS oscillator — AEC-Q100 grade
The DSC1123AI2-156.2539T: This is a Microchip DSC1123-series MEMS-based XO (Standard) delivering a fixed 156.2539 MHz output with LVDS signaling, ±25 ppm frequency stability, and an Enable/Disable control pin. The 2.25V to 3.63V supply range covers both 2.5V and 3.3V rails, so the same BOM line works across voltage domains without a separate regulator tap. The OEM auditor will look for the AEC-Q marking on the reel label and the PPAP documentation; this part carries that qualification, not just a 'capable' claim.
Active production — no last-time-buy window
Listed as Active by Microchip.
MEMS resonator, 6-SMD footprint, surface-mount
The 6-SMD, No Lead Exposed Pad package measures 7.00 mm x 5.00 mm with a seated height of 0.90 mm.
LVDS output and Enable/Disable pin details
LVDS output provides a differential 350 mV swing typical into a 100-Ω termination — the receiver must be LVDS-compatible. This pin is useful for test isolation or power gating in multi-clock systems.