AD9523-1BCPZ-REEL7

Overview

The AD9523-1BCPZ-REEL7 is a low jitter clock generator with 14 configurable outputs (LVPECL, LVDS, HSTL, LVCMOS) in a 72-LFCSP-VQ package. It features a dual PLL architecture with an integrated VCO tuning from 2.94 GHz to 3.1 GHz. The device supports input frequencies up to 400 MHz and output frequencies up to 1 GHz. Supply voltages range from 1.768 V to 3.465 V for logic/dividers and 3.135 V to 3.465 V for PLLs/drivers. Operating temperature spans -40°C to +85°C.

Feature Summary

• Dual PLL architecture: PLL1 for reference cleanup with external VCXO; PLL2 for high-speed distribution with integrated low-noise VCO.
• 14 dedicated output dividers with jitter-free adjustable delay (63 resolution steps of ½ period).
• Low absolute output jitter (<150 fs at 122.88 MHz) and broadband timing jitter (124 fs).
• Nonvolatile EEPROM stores configuration settings for power-up readiness.

Applications

• LTE and multicarrier GSM base stations
• Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs
• SONET, 10Ge, 10G FC, and other 10 Gbps protocols

Procurement Notes

Verify the REEL7 suffix indicates tape-and-reel packaging. Confirm the B-grade designation matches required performance specifications. Ensure the 72-LFCSP-VQ footprint aligns with PCB layout guidelines. Check for moisture sensitivity level (MSL) requirements during storage and handling.

Selection Notes

Select this component when low phase noise is critical for data converter SNR. Use the external VCXO connection via PLL1 for stringent jitter requirements. Verify that the 14-output count and configurable driver types (LVPECL/LVDS/HSTL/CMOS) meet system interface needs. Consider thermal dissipation if operating near maximum frequency and temperature limits.

Part Context

This part belongs to the AD9523 series, designed for multi-output clock distribution with on-chip PLL and VCO capabilities. It serves as a key component in wireless infrastructure and high-performance instrumentation where precise timing alignment and low jitter are essential.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate pin-compatible alternatives within the Analog Devices portfolio only after verifying electrical parameter compatibility and software register mapping differences.