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DSC1001CL5-025.0000T

DSC1001CL5-025.0000T - 25MHz MEMS CMOS XO, ±10ppm | Microchip

The Microchip Technology DSC1001CL5-025.0000T is a 25 MHz silicon MEMS-based CMOS crystal oscillator (XO) in a 4-pin 3.2 mm x 2.5 mm VDFN (QFN) surface-mount package, with ±10 ppm frequency stability over -40 °C to +105 °C and a supply voltage range of 1.8 V to 3.3 V. The device delivers an LVCMOS-compatible output, low power consumption (6.3 mA typical), and an integrated standby (power-down) function on pin 1 for energy-efficient designs. An XO (crystal oscillator) is a self-contained timing device that generates a fixed-frequency clock without requiring an external resonator. Unlike traditional quartz crystals, MEMS-based oscillators use a silicon resonator, offering improved shock and vibration resistance, faster startup, and eliminating crystal-related aging effects. MEMS XOs occupy the same role in the timing hierarchy as quartz crystals -> oscillators -> clock generators -> frequency references, and are increasingly preferred for rugged industrial, automotive, and portable applications. Key features include ±10 ppm total stability over the full -40 °C to +105 °C temperature range, a duty cycle near 55 % at 25 MHz, 15 pF output load capability, and a maximum period jitter of 50 ps peak-peak over 50,000 cycles. The DSC1001 family covers 1 MHz to 150 MHz across the same footprint, allowing PCB reuse for multiple clock frequencies. The silicon resonator architecture eliminates quartz-crystal stress fractures common in portable or high-vibration environments. Built-in standby reduces quiescent current during power-down, making the part well-suited to battery-powered systems that duty-cycle their clock domains. Spread-spectrum variants are also available within the family for EMI-sensitive applications. Typical applications include microcontroller clock references in industrial controllers, USB and peripheral timing in portable electronics, communication modules, IoT sensor hubs, and automotive infotainment reference clocks. Any system that previously used a discrete 25 MHz crystal with a separate oscillator IC can be simplified to a single part. When designing in this part, place the decoupling capacitor as close as possible to pin 4 (VDD) and route the LVCMOS output trace with 50 Ω characteristic impedance to avoid reflections. Confirm that downstream devices tolerate the 15 pF load rating; heavier loads may degrade rise/fall time and duty cycle. This page synthesizes distributor pricing, drop-in alternatives, pinout detail, and design notes drawn from the Microchip DSC1001 datasheet family - providing practical integration guidance that goes beyond the bare datasheet.