SiTime offers ruggedized single-ended Endura oscillators for defense and aerospace applications with a wide range of features. These devices deliver the perfect combination of wide frequency range (1 to 137 MHz), excellent stability (±20 ppm), and wide temperature range (-55 to 125°C) – in any combination.

• Low acceleration sensitivity, 0.1 ppb/g
• Wide operating temperature, -55 to +125°C
• Industry-standard QFN packages, as small as 2.0 mm x 1.6 mm
• SOT23-5 leaded package for higher board-level reliability and manufacturability
• FlexEdge™ configurable rise/fall time for EMI reduction

Device	SiT2044	SiT2045	SiT8944	SiT8945
Datasheet
Frequency	1 to 110 MHz	115 to 137 MHz	1 to 110 MHz	115 to 137 MHz
Stability (PPM)	±20±25±50	±20±25±50	±20±25±30±50	±20±25±30±50
Output Type	LVCMOS	LVCMOS	LVCMOS	LVCMOS
Supply Voltage (V)	1.8 2.5 to 3.3	1.8 2.5 to 3.3	1.8 2.5 to 3.3	1.8 2.5 to 3.3
Temp. Range (°C)	-40 to +105 -40 to +125 -55 to +125	-40 to +105 -40 to +125 -55 to +125	-40 to +105 -40 to +125 -55 to +125	-40 to +105 -40 to +125 -55 to +125
Package Size (mm2)	SOT23 (2.9x2.8)	SOT23 (2.9x2.8)	2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0	2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0