SiT3901

1 to 26 MHz, Ultra-Small µPower DCXO

The SiT3901 is the world's smallest, lowest power and lightest-weight digitally-controlled oscillator (DCXO). This MEMS-based DCXO has an ultra-wide pull range up to 15% at fine resolution. It consumes up to 90% less power and 90% less space compared to quartz oscillators. This DCXO offers high resilience to analog noise and the ability to dynamically vary its frequency to match the resonate frequency of the receiver, making it ideal for fast wireless charging systems and other power-sensitive, space-constrained applications.

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"Specs"	"Value"
Oscillator Type	XO-SE
Frequency	2.6MHz, 6.78MHz and 13.56MHz. Contact SiTime for other output frequencies (1 to 26MHz)
Frequency Stability (ppm)	±50, ±100
Operating Temperature Range (°C)	-20 to +70, -40 to +85
Package Type (mm²)	1.5x0.8
Voltage Supply (V)	1.8, 2.5 to 3.3
Features	Ultra-low current consumption of 105 µA at 2.6 MHz and 220 µA at 6.78 MHz
Availability	±50,000 ppm - ±150,000 ppm pull range

Wide tuning range via 1-wire serial interface

Up to ±150,000 ppm pull range
Tuning resolution as low as ±1 ppb
Enables the oscillator frequency of the TX to dynamically match the resonate frequency of the RX
Eliminates many external passive components needed for traditional resonate matching

Ultra-low power: 105 µA (typical)

Extended battery life

Small size: 1.5 x 0.8 mm

Up to 90% smaller total footprint compared to quartz solutions

Programmable output drive strength for best EMI or driving multiple loads

BOM savings
Space savings

Wireless Chargers
Wearables
Portable Medical Devices
Earbuds
Hearables

SiT3901 (1.8 V DFLT) IBIS Model

CSP 1508 4-Pins 3D Step Model – Preview oscillator packages in 3D

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