QTV750-77.760MBB-T

Oscillators Overview

The QTV750-77.760MBB-T is a voltage-controlled crystal oscillator (VCXO) manufactured by FTS, designed for precision timing applications. It operates at a nominal frequency of 77.760 MHz with a CMOS output format. The device functions within a supply voltage range of 3.3V ±10% and consumes a maximum current of 30 mA. It features an absolute pull range of at least ±50 ppm over a control voltage span of 0V to 3.3V, with a typical linearity of 10%. The unit is housed in a 7.0mm x 5.0mm x 1.4mm SMD ceramic package, supporting operation from -40°C to +85°C.

Oscillators Feature Summary

• Provides stable clock signals with low phase noise and jitter characteristics suitable for high-performance digital systems.
• Integrates a three-state function to enhance system flexibility and power management capabilities.
• Utilizes a compact surface-mount ceramic package optimized for high-density circuit board layouts.

Oscillators Applications

• Wireless communication systems requiring precise modulation and demodulation timing.
• Small cellular base station infrastructure for synchronization.
• Fiber channel and SONET/SDH network equipment.
• Digital television and audio processing devices.

Oscillators Procurement Notes

Verify the specific part number suffix against official FTS documentation to confirm frequency accuracy and tolerance specifications. Ensure that the required operating temperature range aligns with the standard industrial grade (-40°C to +85°C) unless extended variants are explicitly documented. Confirm compatibility with 3.3V logic levels and check for any specific enable pin requirements during integration.

Oscillators Selection Notes

Select this component when a voltage-controlled adjustment capability is necessary for clock recovery or synchronization tasks. The CMOS output ensures direct interface with most digital logic families without additional buffering. Consider the ±50 ppm pull range sufficient for the intended loop bandwidth and ensure the application environment remains within the specified thermal limits for optimal phase noise performance.

Oscillators Part Context

This model belongs to the QTV750 series of voltage-controlled crystal oscillators, which are engineered to provide precise frequency tuning through an external control voltage. The series is characterized by its small form factor and robust ceramic construction, making it suitable for demanding telecommunications and data transmission environments where space and signal integrity are critical constraints.

Oscillators Replacement Considerations

Direct substitutes include other VCXOs from the same family with matching frequencies, such as the QTV750-122.880MBB-T for different clock rates. Cross-referencing with TXC Corporation's QTM750 series may be possible if voltage control is not strictly required, though electrical parameters differ significantly.