8N4SV76LC-0139CDI

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Clock/timing devices and oscillators are essential components inside a wide range of electronic equipment. 8N4SV76LC-0139CDI is a programmable timer and oscillator from Littelfuse whose application field and working principle are discussed in the following sections.

Application Field

The 8N4SV76LC-0139CDI is a high-accuracy programmable timer and oscillator with a wide range of applications. It is designed with features such as low voltage operation, high frequency stability, and fast adjustment time, making it suitable for use in electronic systems where timekeeping needs to be precise and reliable.

For example, it can be used in aerospace application like inertial systems, navigational systems, and optical systems. It can also be used in automotive applications such as sensors, telematics, and collision avoidance systems. 8N4SV76LC-0139CDI is also found in industrial robotics, medical equipment, and RFID systems.

Working Principle

The 8N4SV76LC-0139CDI is a programmable timer and oscillator with a unique architecture that is based on a combination of a highly accurate temperature-compensated crystal oscillator (TCXO) and a programmable frequency divider. This combination results in a circuit with extremely accurate, extremely stable timing characteristics over a wide range of temperature and voltage.

The TCXO is used to generate an accurate CLK signal that is divided down by a programmable frequency divider. The divider is programmed with an I2C bus and output can be configured with various frequencies and duty cycles. The clock output is correlated with a reference clock signal, which ensures highly accurate timing even after temperature and voltage variations.

The 8N4SV76LC-0139CDI also has an embedded temperature sensor and voltage monitor. This allows the device to self-calibrate its clock frequency in order to keep the frequency stable, even under changing temperatures and voltages. The device also has integrated fault protection, which helps protect the circuitry from any damage caused by current or voltage spikes.

Conclusion

The Littelfuse 8N4SV76LC-0139CDI is a sophisticated programmable timer and oscillator that is used in a wide range of application fields. It combines a temperature-compensated crystal oscillator with a programmable frequency divider to create a highly accurate and stable clock output. The device also includes a built-in temperature sensor and voltage monitor, fault protection, and an I2C interface, making it a versatile and reliable component.

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