Texas Instruments

CDC857-2DGG  

Clock Generators & Support Products

CDC857-2DGG Description

The CDC857-2DGG is a PLL Clock Driver from Texas Instruments, designed to provide high-performance clock distribution in a variety of electronic systems. This integrated circuit (IC) features a Phase-Locked Loop (PLL) with bypass capability, making it versatile for both high-frequency and low-jitter applications. The CDC857-2DGG operates within a supply voltage range of 2.3V to 2.7V and supports differential input and output signals, ensuring signal robust integrity.

The CDC857-2DGG is housed in a 48-pin TSSOP package and is suitable for surface-mount applications. It has a maximum operating frequency of 167MHz, making it ideal for high-speed clock distribution. The device supports a 1:10 input-to-output ratio, providing flexibility in clock signal distribution. Additionally, the CDC857-2DGG is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards.

CDC857-2DGG Features

• PLL with Bypass Capability: The CDC857-2DGG features a Phase-Locked Loop (PLL) that can be bypassed, offering flexibility in system design. This allows designers to optimize performance for either high-frequency operation or low-jitter applications.
• Wide Operating Voltage Range: The device operates within a supply voltage range of 2.3V to 2.7V, making it suitable for a variety of power supply configurations.
• Differential Signaling: The CDC857-2DGG supports differential input and output signals, which helps reduce electromagnetic interference (EMI) and high ensures signal integrity.
• High-Frequency Operation: With a maximum operating frequency of 167MHz, the CDC857-2DGG is well-suited for high-speed clock distribution in demanding applications.
• Environmental Compliance: The device is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and regulatory standards.
• Surface-Mount Compatibility: The CDC857-2DGG is available in a 48-pin TSSOP package, making it suitable for surface-mount assembly processes.

CDC857-2DGG Applications

The CDC857-2DGG is ideal for a range of applications that require high-performance clock distribution. Some specific use cases include:

• Telecommunications: In high-speed communication systems, the CDC857-2DGG can provide reliable clock distribution for data transmission and reception.
• Networking Equipment: The device is well-suited for networking applications, such as switches and routers, where high-speed and low-jitter clock signals are critical.
• Data Centers: The CDC857-2DGG can be used in data center infrastructure to ensure accurate clock distribution across servers and storage devices.
• Industrial Automation: In industrial applications, the CDC857-2DGG can provide stable clock signals for control systems and data acquisition devices.

Conclusion of CDC857-2DGG

The CDC857-2DGG from Texas Instruments is a versatile PLL Clock Driver that offers high performance and reliability in clock distribution applications. With its wide operating voltage range, differential signaling, and high-frequency operation, the CDC857-2DGG is well-suited for a variety of high-speed and low-jitter applications. Its environmental compliance and surface-mount compatibility make it an ideal choice for modern electronic systems. While the product status is marked as obsolete, the CDC857-2DGG remains a valuable component for existing designs and legacy systems.

CDC857-2DGG Documents

Download datasheets and manufacturer documentation for CDC857-2DGG