LTC6992CS6-4#TRMPBF

The LTC6992CS6-4#TRMPBF is a configurable oscillator, low power CMOS active RC oscillator. It contains an oscillator core with a self-contained voltage-controlled oscillator (VCO), two programmable gain blocks and two programmable frequency dividers. It is ideal for applications in communication systems, such as digital communication receivers, frequency synthesizers and clock generators, and other electronic systems requiring a programmable frequency source.

Features

The LTC6992CS6-4#TRMPBF programmable oscillator has several advantages over conventional oscillators:

• It can be programmed for any frequency, from 1kHz to 40MHz, with an inline programming interface.
• It utilizes an integration of CMOS active RC oscillator blocks, which reduces total power consumption.
• It is available in an 8-pin small-form-factor package, making it ideal for space-constrained applications.
• The two programmable frequency dividers each provide two unique output frequencies.

Application Field

The LTC6992CS6-4#TRMPBF programmable oscillator is a versatile device well-suited for many applications where timing accuracy is paramount. A few of the applications where it excels include:

• Frequency synthesizers and clock multipliers
• Digital communication receivers
• Cellular base station systems
• Wireless radios and radios
• PCI and PCI express systems

Working Principle

The LTC6992CS6-4#TRMPBF utilizes the Third-Order Asymmetric State Variable Oscillator (3OSV) configuration when operating at lower frequencies from 1kHz to 4MHz. This configuration combines two voltage-controlled oscillators (VCOs) and two gain blocks, resulting in three separate frequency outputs. When operating at higher frequencies up to 40MHz, the device utilizes the DC-DC inductor oscillator mode. The LTC6992CS6-4#TRMPBF has two programmable frequency dividers, which can provide two unique and independent output frequencies, allowing designers flexibility when creating their applications.

The two programmable dividers each contain an 8-bit divider that can be programmed to provide a range of output frequencies with a resolution of 1kHz. The two dividers can be programmed to divide the VCO output frequency by an independent, programmable factor from 1 to 256. The programmable frequency dividers are also designed with a low-jitter master input, giving designers the ability to use any external clock source as the master source.

Conclusion

The LTC6992CS6-4#TRMPBF programmable oscillator is an advanced and user-friendly device that provides reliable frequency synthesis with extremely low jitter. Its versatility makes it well-suited for a broad range of applications, from clock multiplier and frequency synthesizers to wireless radios and PCI express systems. Furthermore, its integration of CMOS active RC oscillator blocks helps minimize power consumption and lowers heat generation, allowing it to be used in space-constrained applications.