AD9576BCPZ-REEL7

Overview

The AD9576BCPZ-REEL7 is a dual-channel asynchronous clock generator featuring two dedicated phase-locked loop (PLL) cores within a 64-lead, 9 mm × 9 mm LFCSP package. It supports single 2.5 V or 3.3 V supply operation across a −40°C to +85°C temperature range. The device includes a fractional-N PLL with a VCO range of 2375 MHz to 2725 MHz and an integer-N PLL with a VCO range of 750 MHz to 825 MHz. It provides 11 pairs of configurable differential outputs supporting HSTL, LVDS, HCSL, and CMOS formats. Maximum output frequency reaches 1.25 GHz, with input frequencies up to 325 MHz. Typical RMS jitter is less than 0.3 ps for integer-N and 0.5 ps for fractional-N translations.

Feature Summary

• Dual PLL architecture: Fractional-N core (VCO 2375–2725 MHz) and Integer-N core (VCO 750–825 MHz)
• 11 configurable differential output pairs with support for HSTL, LVDS, HCSL, and CMOS drive formats
• Automatic redundant crystal switchover with minimal transient disturbance
• Low integrated RMS jitter: <0.3 ps (integer-N) and <0.5 ps (fractional-N) in the 12 kHz to 20 MHz bandwidth

Applications

• Ethernet line cards, switches, and routers
• Baseband units
• SATA and PCI Express interfaces
• Low jitter, low phase noise clock generation systems

Procurement Notes

Verify that the REEL7 suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly. Confirm the specific lot date code and RoHS compliance status directly with the supplier or manufacturer documentation prior to procurement. Ensure the ordering quantity matches the reel capacity specified in the official packaging data sheet.

Selection Notes

Select this component when a system requires multiple asynchronous clock domains derived from a single reference source. The AD9576 is appropriate for designs needing flexible frequency translation via pin strapping or SPI configuration. Consider the available output drive formats (LVDS, HSTL, etc.) to match the input requirements of downstream FPGAs or processors without external level shifters.

Part Context

This part belongs to the Analog Devices AD9576 family of clock generators. The AD9576BCPZ-REEL7 is the reel-packaged variant of the AD9576BCPZ evaluation sample. Both share identical electrical specifications and functionality, differing only in shipping format. The device integrates fully on-chip VCOs and loop filters, reducing external component count compared to discrete synthesizer solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. When evaluating alternatives, ensure the replacement supports dual independent PLL cores, similar output voltage swing standards, and comparable jitter performance metrics for the target application bandwidth.