Maxim offers high-performance precision oscillators from 32kHz to 122MHz, including TCXOs for real-time clocks (RTCs), multi-output TCXOs, and VCXOs.
Temperature-Compensated Crystal Oscillators (TCXOs)
TCXOs for RTC Applications
	Extremely Accurate Time over Temperature ±2ppm from 0°C to 40°C ±7.5ppm from -40°C to 85°C 2.7V to 5.5V Supply Range and Low Power Consumption (< 4.0µA) for Battery-Backed Operation Ideal Accurate Reference Source for Real-Time Clocks Integrated Crystal—No User Calibration Required Parametric Table of TCXOs for RTCs

Multi-Output TCXO
	±1ppm Frequency Stability from -40°C to 85°C Jitter < 10ps_RMS ±8.0ppm Digital Pullability DS4026 10MHz to 51.84MHz TCXO QuickView

Voltage-Controlled Crystal Oscillator (VCXO)
Best Phase Noise and Jitter VCXO
	SSB Phase Noise of -145dBc/Hz at 10kHz 0.8ps_RMS Jitter Performance from 12kHz to 20MHz <±30ppm Stability from -40°C to 85°C 3.3V Operation Ideal for Telecom/Datacom Clock-Data Recovery, Data Retiming, and Wireless Basestation Reference-Clock Generation DS4077 High-Performance VCXO QuickView

Solutions
GPS Solutions Telecom Switches (PBX and Central Office)
Application Notes
Application Note 3816: Selecting a Backup Source for Real-Time Clocks Abstract Application Note 3572: FAQ About the Integrated-Crystal Package Option Abstract Application Note 701: Using the DS32kHz with Dallas Real-Time Clocks Abstract