AD9508BCPZ-REEL7

Overview

The AD9508BCPZ-REEL7 is a 1.65 GHz clock fanout buffer and distribution IC manufactured by Analog Devices Inc. It features four independent differential outputs, each supporting LVDS, HSTL, or CMOS logic levels. The device integrates 10-bit programmable dividers with integer ratios from 1 to 1024 and supports coarse phase offset adjustment between outputs. It operates on a single 2.5 V or 3.3 V supply within an ambient temperature range of −40°C to +85°C. The component is housed in a 24-lead LFCSP package and utilizes SPI/I²C or pin-strapping for configuration.

Feature Summary

• Supports up to 4 differential outputs (LVDS/HSTL) or 8 single-ended CMOS outputs
• Integrates 10-bit programmable dividers with integer division ratios from 1 to 1024
• Provides additive output jitter of 41 fs rms typical (12 kHz to 20 MHz bandwidth)
• Includes pin-strapping capability for hardwired programming at power-up

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 REEL7 suffix indicates tape and reel packaging rather than cut tape. Confirm the specific revision level matches design requirements, as datasheet revisions may update electrical characteristics or ordering information. Ensure compatibility with existing PCB footprint dimensions for the 24-LFCSP package.

Selection Notes

Select this component when low additive jitter and flexible output logic levels are required for high-speed data converters. Choose based on the need for integrated frequency division and phase delay adjustment without external components. Verify that the input clock frequency does not exceed 1.65 GHz and that the supply voltage aligns with the 2.5 V or 3.3 V operational ranges.

Part Context

The AD9508BCPZ-REEL7 belongs to the AD9508 series of clock distribution devices. It serves as a specialized solution for applications demanding precise timing synchronization and minimal phase noise. The part complements Analog Devices' portfolio of high-speed signal processing components by providing robust clock generation and distribution capabilities.

Replacement Considerations

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