Introducing the SiT3372: 1 MHz to 220 MHz Ultra-low Jitter Differential VCXO

SiTime Corporation is proud to present the SiT3372, a Differential MEMS VCXO (Voltage-Controlled Crystal Oscillator) designed for low-jitter applications, offering exceptional performance in a wide range of frequencies from 1 MHz to 220 MHz. Engineered with SiTime's proprietary DualMEMS® temperature sensing and TurboCompensation® technology, the SiT3372 provides superior dynamic performance, resisting airflow, thermal gradients, shock, and vibration.

SiT3372 Block Diagram

Pin Assignments (Top view)

Key Features:

Frequency Accuracy: The SiT3372 offers any frequency between 1 MHz and 220 MHz accurate to 6 decimal places, ensuring precise timekeeping for a variety of applications.

Pull Range Options: With the widest pull range options available, including ±25, ±50, ±80, ±100, ±150, ±200, ±400, ±800, ±1600, and ±3200 ppm, the SiT3372 is highly configurable to meet specific application needs.

Low Phase Jitter: The device boasts a typical phase jitter of 0.225 ps RMS over a 12 kHz to 20 MHz bandwidth, which is crucial for high-speed data transmission.

Frequency Stability: Enjoy frequency stability as low as ±15 ppm, ensuring reliable operation across different environmental conditions.

Temperature Range: The SiT3372 supports a wide temperature range from -40°C to 105°C, making it suitable for both commercial and industrial applications.

Package Options: Available in industry-standard packages of 7.0 x 5.0 mm, 5.0 x 3.2 mm, and 3.2 x 2.5 mm, the SiT3372 is designed for easy integration into existing systems.

Applications:

The SiT3372 is ideal for a variety of applications where low jitter and high reliability are paramount, including:

Cable Modem Termination Systems (CMTS), Video, Broadcasting Systems, Audio, and Industrial Sensors.

High-speed data interfaces such as SATA, SAS, 10/40/100/400 Gbps Ethernet, Fibre Channel, and PCI-Express.

Programmability and Customization:

The SiT3372 can be factory-programmed for any combination of frequency, stability, voltage, output signaling, and pull range. This programmability allows designers to optimize clock configurations, eliminating the long lead times and customization costs associated with traditional quartz devices.

Ordering Information:

The SiT3372 is easily ordered with a clear part numbering system that includes specifications for frequency, temperature range, signaling type, voltage supply, pull range options, packaging, and frequency stability. For example, the part number "SiT3372AC -1B2-33NH122.123456T" specifies a particular configuration of the device.

Electrical Characteristics:

The SiT3372 is specified with detailed electrical characteristics common to LVPECL, LVDS, and HCSL signaling types, ensuring that it meets the performance standards required for high-speed communication applications.

Conclusion:

The SiT3372 is a versatile and high-performance VCXO designed for applications demanding ultra-low jitter and wide frequency range. With its robust feature set and customizable options, the SiT3372 is the ideal choice for telecom, networking, and industrial applications operating in noisy environments.

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