AD9508SCPZ-EP

Overview

The AD9508SCPZ-EP is a 1.2 GHz clock fanout buffer with output dividers and delay adjustment, designed for enhanced product applications in defense and aerospace environments. It operates from a single 2.5 V supply (2.375 V to 2.625 V) within an extended temperature range of −55°C to +105°C. The device features four independent differential outputs supporting LVDS, HSTL, or CMOS logic levels, or up to eight single-ended CMOS outputs. Each output includes a 10-bit programmable divider (1:1 to 1:1024) and coarse phase offset adjustment. Additive jitter is typically 41 fs rms (12 kHz to 20 MHz), with broadband random jitter under 115 fs rms.

Feature Summary

• Enhanced Product qualification supporting AQEC standards for defense and aerospace use
• Extended operating temperature range from −55°C to +105°C
• Four differential outputs configurable as LVDS/HSTL (up to 1.2 GHz) or eight single-ended CMOS outputs (up to 250 MHz)
• Integrated 10-bit programmable dividers (1–1024) with coarse phase offset adjustment per channel

Applications

• Low jitter, low phase noise clock distribution systems
• Clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFEs
• High-performance wireless transceivers
• Broadband infrastructure equipment

Procurement Notes

Verify the specific suffix SCPZ against the manufacturer's current ordering guide to confirm package type and tape/reel versus tray packaging status. Confirm that the Enhanced Product (EP) designation aligns with project requirements for controlled manufacturing baselines and one assembly/test site sourcing. Check for any recent PCN updates regarding the CP-24-15 outline dimension change noted in Rev. D.

Selection Notes

Select this component when strict environmental reliability and extended temperature operation are required. Ensure the system power supply can maintain 2.5 V ± 5% across the full temperature range. Verify that the input clock slew rate exceeds 1 V/ns to meet specified jitter performance. Confirm compatibility with SPI, I²C, or pin-strapping programming modes based on system control architecture.

Part Context

The AD9508-EP is the enhanced product variant of the standard AD9508 clock buffer. It shares the same functional block diagram and electrical specifications but differs in manufacturing controls. The EP version offers controlled manufacturing baseline, single source fabrication and assembly sites, and enhanced product change notification procedures suitable for long-term availability in critical applications.

Replacement Considerations

Standard AD9508BCPZ or AD9508SCPZ may be considered if environmental qualifications and extended temperature ranges are not required. Note that standard versions operate from −40°C to +85°C and lack the enhanced product manufacturing controls.