CY29973AXIT

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY29973AXIT is a 3.3V multi-output zero delay buffer and clock generator manufactured by Infineon Technologies (formerly Cypress Semiconductor). It operates within an industrial temperature range of -40°C to +85°C and is housed in a 52-pin TQFP package with dimensions of 10 x 10 mm. The device supports output frequencies up to 125 MHz, utilizing a PLL with a VCO lock range between 200 MHz and 480 MHz. It features 12 configurable clock outputs divided into three banks (QA, QB, QC), accepting PECL or external reference inputs. Key electrical specifications include a maximum output-to-output skew of 350 ps, cycle-to-cycle jitter of ±100 ps, and a supply voltage range of 2.9V to 3.6V for VDD.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero Delay Buffer Architecture: Eliminates propagation delay by feeding back the output clock to the PLL input, aligning output edges with the reference input edge.

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-performance microprocessor clock distribution
• Nested clock tree applications requiring low skew

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm the specific ordering suffix 'XIT' corresponds to the tape and reel packaging variant as documented in the official datasheet. Ensure compliance with applicable environmental regulations and verify that the component meets the required industrial temperature specifications for the intended deployment environment.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designing systems requiring near-zero delay clock distribution with multiple independent output banks. Ensure the design accommodates the specified 3.3V power supply requirements and utilizes the 52-pin TQFP footprint. Consider the device's capability for glitch-free frequency transitions and individual output control via serial interface for power management optimization.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The CY29973 series belongs to the family of multi-output zero delay buffers designed for high-speed digital applications. The AXIT suffix specifically denotes the industrial temperature grade (-40°C to +85°C) packaged in tape and reel format for automated assembly. This part is functionally compatible with legacy designs using similar pinouts, such as the MPC973, facilitating migration in existing hardware architectures.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.