Why a MEMS resonator at 148.5 MHz
The 148.5 MHz frequency is a common master clock for HD video standards (SMPTE 292M, 274M) and high-speed serial interfaces.
That 95 µA standby figure is low enough to leave the oscillator powered from a battery-backed rail without draining the coin cell during sleep modes — useful in remote equipment that wakes periodically to sync a clock.
Package and mounting constraints
Housed in a 6-SMD no-lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm max. That footprint is common across the DSC1101 family, so if you've laid out for a 3.2 x 2.5 mm oscillator, this part fits without a board spin.
No pin-compatible replacement or second-source is recorded; the DSC1101 family covers the same footprint.