CY7B9940V-5AXI

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY7B9940V-5AXI is a RoboClockII™ Junior High Speed Multifrequency PLL Clock Buffer manufactured by Infineon Technologies. It operates within an input and output frequency range of 24 MHz to 200 MHz. The device features ten LVTTL outputs capable of driving 50Ω terminated lines with matched pair output skew less than 200 ps and zero input-to-output delay. It utilizes a single 3.3V ±10% supply voltage and supports multiply ratios from 1x up to 12x the input frequency. The component is housed in a 44-pin TQFP package and is rated for industrial temperature operation between -40°C and +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero input-to-output delay with low cycle-to-cycle jitter performance
• Configurable reference inputs supporting both LVPECL differential and LVTTL single-ended signals
• Individual output bank disable capability for power management and EMI reduction
• Integrated phase-locked loop with lock indicator output

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-performance computer system clock distribution
• Communication systems requiring multifrequency clock generation
• Systems utilizing fault-tolerant or hot-insertable reference clock sources

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'AXI' confirms the industrial temperature grade (-40°C to +85°C) and lead-free status. Confirm the '5' designation indicates the 500 ps propagation delay speed bin. Ensure compatibility with the 44-pin TQFP footprint during procurement planning.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model over the CY7B9930V variant when operating frequencies exceed 100 MHz, as the CY7B9940V supports up to 200 MHz. Ensure the FS pin configuration aligns with the nominal VCO frequency requirements for the desired operational band. Verify that the required number of outputs fits within the three available banks.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the RoboClockII™ Junior family, which includes the CY7B9930V and CY7B9940V models. While the CY7B9930V is limited to 100 MHz operation, the CY7B9940V extends the maximum frequency to 200 MHz. Both share similar architectural features but differ in their high-speed capabilities.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

CY7B9940V-2AXI: Offers the same package and functionality but with a faster 250 ps propagation delay specification.