ACS8944T

Overview

The ACS8944T is a jitter attenuating, multiplying phase-locked loop designed for OC-12/STM-4 applications. It operates at a frequency of 155.52MHz with one output. The device is housed in a 48-QFN (7x7) package and is manufactured by Semtech Corporation.

Feature Summary

• Integrates a multiplier PLL and a PLL-based jitter attenuator
• Designed specifically for SONET/SDH clock generation
• Features external filtering components for optimized lock indication

Applications

• SONET/SDH clock generation
• OC-12/STM-4 systems
• Jitter attenuation in timing circuits

Procurement Notes

Verify the specific datasheet version and pinout configuration before integration. Confirm that the 48-QFN package dimensions match the PCB footprint requirements. Ensure compatibility with the target operating temperature range and voltage specifications for reliable performance in SONET/SDH environments.

Selection Notes

Select this component when jitter attenuation and multiplication are required for OC-12/STM-4 standards. Consider the 48-QFN package size and the need for external filtering components. Evaluate the single-output capability against system design requirements to ensure it meets the specific clock distribution needs.

Part Context

The ACS8944T belongs to Semtech's application-specific clock and timing IC family. It is engineered for high-performance timing solutions in telecommunications, specifically targeting SONET/SDH protocols. The device combines jitter attenuation with frequency multiplication in a compact form factor.

Replacement Considerations

No public confirmed substitute part numbers are available.