AD9577BCPZ-RL

Overview

The AD9577BCPZ-RL is a clock generator featuring dual integrated PLL/VCO cores (one integer-N, one fractional-N) optimized for network applications. It supports output frequencies up to 637.5 MHz with I2C programmable configurations. The device provides up to four differential LVDS/LVPECL or eight CMOS outputs and includes spread spectrum clocking capabilities. Operating from a single 3.3 V supply within a -40°C to +85°C range, it utilizes a 40-lead LFCSP package.

Feature Summary

• Dual PLL architecture: Integer-N PLL1 and Fractional-N PLL2
• Integrated loop filters eliminating external components
• Spread spectrum clocking with configurable modulation profiles
• Flexible output formats: LVDS, LVPECL, or CMOS

Applications

• Ethernet and Fiber Channel networking
• SONET/SDH and OTN systems
• PCI Express and SATA interfaces
• ADC/DAC clocking and digital video

Procurement Notes

Verify the specific suffix 'RL' against the manufacturer's ordering guide to confirm tape-and-reel packaging specifications. Ensure compatibility with I2C control lines and check for moisture sensitivity handling requirements during assembly.

Selection Notes

Select this component when low jitter performance is critical for data communications. Choose between PLL1 for lowest jitter in integer mode or PLL2 for fractional frequency synthesis. Verify that the required output count fits within the four differential or eight single-ended channel limits.

Part Context

This part belongs to the AD9577 series of clock generators. It is designed as a space-saving solution for multi-output clocking needs, integrating VCOs and dividers into a compact 6 mm × 6 mm footprint compared to discrete solutions.

Replacement Considerations

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