CDCE937PWRG4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The CDCE937PWRG4 is a Clock Generator and Frequency Synthesizer specifically designed with 3-step automatic Power Saving Shutdown (PSS) to provide ultra-low power consumption. The internal circuitry contains a Phase-Locked loop (PLL), Voltage Controlled Oscillator (VCO) and programmable pre-scalar along with Control Logic, available in user configurable register bits. The device supports two external independent reference clock inputs, as well as two independent outputs.

Application Field

The CDCE937PWRG4 is ideal for applications ranging from cellular base stations, point-to-point radio links, wireless systems, and other communications applications where low power consumption is critical. It can also be used in embedded systems and microcontrollers for clock synchronization and clocking accuracy for high performance applications such as digital signal processing and base band audio processing.

Working Principle

The internal PLL generates a frequency in the range of 10-550 MHz and combines two external reference clock inputs with two independent outputs. PLL provides high accuracy tracking of the programmed reference clock frequency over a large range of temperatures. The output frequencies are programmed by register bits which include an available programmable feedback divider. The available pre-scaler allows for dynamic frequency changes within a single register bit accessing.

To optimize power consumption, CDCE937PWRG4 operates in a 3-step automatic Power Saving Shutdown (PSS) mode. In this mode, the CDCE937PWRG4 automatically shuts down when no input clock is input or when a programming mistake is detected. This saves power and provides an additional level of security to ensure data integrity in applications where clock rate fluctuates frequently. Furthermore, the CDCE937PWRG4 is designed to offer low power consumption and still maintain its performance.

Features

The CDCE937PWRG4 has many features designed with the end user in mind. Some of these include:

• Robust 3-step automatic Power Saving Shutdown (PSS) mode
• Ultra-low power consumption allowing for reliable and efficient operation in battery powered applications
• Dual Reference Clock inputs supporting flexible physical layer configurations
• Programmable Pre-scaler
• Option for External or Internal feedback divider
• Digital Lock Detect (DLD) circuit
• High accuracy reference frequency
• Low output ripple and jitter
• User configurable register bits

Conclusion

The CDCE937PWRG4 is a very capable and efficient Clock Generator and Frequency Synthesizer with many features designed to optimize power consumption of the system. Its dual reference clock inputs and programmable register bits provide flexibility in system design over a wide range of applications. The 3-step automatic Power Saving Shutdown (PSS) mode further allows more reliable, efficient operations while saving power. This device provides a high performance solution to applications requiring precision clock and frequency signal synthesis.

The specific data is subject to PDF, and the above content is for reference