ZL40804DCE1

Overview

The ZL40804DCE1 is a fixed modulus prescaler manufactured by Zarlink, designed for high-frequency signal processing applications. It operates within a frequency range of 0 Hz to 6 GHz and features a fixed division ratio of 4. The component is housed in an 8-SOIC surface mount package, suitable for compact electronic designs. Classified under RF miscellaneous ICs, it serves as a critical interface between high-speed oscillators and lower-frequency synthesizers. The device supports asynchronous operation with a typical access time of 20 ns, ensuring reliable performance in clock generation and frame pulse selection circuits.

Feature Summary

• Fixed modulus division capability with a constant divide-by-4 ratio
• Wide operational frequency range extending up to 6 GHz
• Surface mount packaging for automated assembly integration

Applications

• Clock generation systems requiring precise frequency division
• Frame pulse selection in digital communication interfaces
• Frequency synthesizer front-end stages

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to obsolete status. Confirm package integrity and pin alignment against the 8-SOIC specification. Request batch-specific test reports to ensure electrical parameters meet original design requirements. Validate RoHS compliance documentation if environmental regulations apply to the end application. Cross-reference part numbers carefully to avoid confusion with similar family members.

Selection Notes

Choose this component when a fixed divide-by-4 ratio is required for frequencies up to 6 GHz. Ensure the system architecture accommodates the 8-SOIC surface mount form factor. Consider the obsolete status for long-term supply chain planning and potential redesign needs. Verify that the asynchronous interface timing aligns with downstream logic requirements. Evaluate thermal management capabilities based on the specific PCB layout and power dissipation constraints.

Part Context

The ZL40804DCE1 belongs to the ZL40804 series of prescalers from Zarlink Semiconductor. This series targets applications needing stable frequency division without programmable complexity. The device complements other clock management components like the ZL30105, which handles output clock selection. It represents a specialized solution for RF and microwave circuit design where fixed division ratios simplify system architecture.

Replacement Considerations

No public confirmed substitute part numbers are available. Due to the obsolete product status, direct replacements may require functional equivalents from other manufacturers. Designers should evaluate current availability and lead times carefully. System redesign might be necessary if exact pin-to-pin compatibility cannot be guaranteed with alternative sources.