CY2292SI-1A0

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2292SI-1A0 is a factory-programmable, three-phase-locked-loop (PLL) general-purpose clock generator manufactured by Infineon Technologies. It utilizes EPROM technology for frequency customization and operates within an industrial temperature range of -40°C to +85°C. The device supports configurable 3.3 V or 5.0 V supply voltages. It generates up to four independent output frequencies from a single external reference source, accommodating input frequencies between 1 MHz and 30 MHz via an external clock or 10 MHz to 25 MHz via a crystal. Output frequencies reach up to 90 MHz at 5.0 V and 66.6 MHz at 3.3 V.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Three integrated PLLs: System PLL (SPLL), CPU PLL (CPLL), and Utility PLL (UPLL).
• EPROM programmability allowing factory customization of output frequencies.
• Low-skew outputs with skew less than 500 ps for heavily loaded signals.
• Configurable power management including shutdown, suspend, and output enable functions.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PC motherboard clock generation.
• Synchronous system timing distribution.
• Downstream PLL synchronization.

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix '1A0' against official ordering documentation to confirm the exact factory-programmed pinout and frequency configuration. Confirm that the industrial temperature grade (-40°C to +85°C) meets the operational requirements. Ensure the selected supply voltage (3.3 V or 5.0 V) aligns with the target application design.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when low-jitter, customizable clock generation is required for industrial environments. The CY2292SI variant specifically addresses industrial temperature constraints compared to commercial options. Consider the smooth slewing capability on the CPUCLK output if dynamic frequency scaling is necessary for power optimization in the target system.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY2292 family of EPROM-programmable clock generators. The 'I' suffix denotes the industrial temperature rating. Unlike field-programmable variants (e.g., CY2292FXI), this device requires factory programming for its specific frequency set. It serves as a successor to industry-standard ICD2023 and ICD2028 devices.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other CY2292 family members such as CY2292SC, CY2292SL, CY2292SXC, or CY2292SXL for commercial grades. Field-programmable equivalents like CY2292FXI offer similar electrical characteristics but require different programming methods.