AD9546BCPZ

Overview

The AD9546BCPZ is a dual DPLL digitized clock synchronizer in a 48-lead LFCSP (7 mm × 7 mm) package. It operates on a single 1.8 V supply within the −40°C to +85°C temperature range. The device features two digital phase-locked loops (DPLLs) capable of synchronizing physical layer clocks from 1 Hz to 750 MHz, providing frequency translation and jitter cleaning. It includes ten clock outputs supporting differential LVDS/HCSL/CML or single-ended configurations up to 500 MHz. Key specifications include a programmable digital loop filter bandwidth ranging from 0.0001 Hz to 1850 Hz and two independent auxiliary numerically controlled oscillators (NCOs) with frequencies between 1 Hz and 65,535 Hz.

Feature Summary

• Dual DPLL architecture synchronizes 1 Hz to 750 MHz inputs with 24-bit fractional dividers and programmable digital loop filters.
• Ten output channels configurable as five differential pairs (LVDS/HCSL/CML) or eight single-ended outputs up to 500 MHz.
• Supports ITU-T G.8262, G.812, G.813, G.823, G.824, G.825, and G.8273.2 standards for network synchronization.
• Includes nine User Time Stamping (UTS) blocks and two Inverse UTS (IUTS) blocks for precise time distribution.

Applications

• 5G timing transport and high-precision synchronization systems
• GPS, Precision Time Protocol (IEEE 1588), and Synchronous Ethernet (SyncE) jitter cleanup
• Optical transport networks (OTN) and synchronous digital hierarchy (SDH)
• Macro and small cell base station clocking (baseband and radio)
• JESD204B support for ADC and DAC clocking

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm RoHS compliance status via official documentation. Ensure handling procedures account for moisture sensitivity classification. Validate that the specific BCPZ suffix corresponds to the required lead-free tray packaging configuration before finalizing orders.

Selection Notes

Select this model when IEEE 1588 boundary clock compliance per ITU-T G.8273.2 Class D is required. Choose the AD9546BCPZ for applications needing dual DPLLs with low-jitter holdover capabilities. Ensure system design accommodates the 1.8 V power supply requirement and 48-lead LFCSP thermal constraints. Verify that input reference frequencies fall within the 1 Hz to 750 MHz operational range.

Part Context

The AD9546BCPZ belongs to the AD9546 family of digitized clock synchronizers manufactured by Analog Devices. It utilizes advanced digitized clocking technology to manage flexible and scalable clock transport systems. The device integrates both digital and analog PLL cores to maintain signal integrity across service provider packet networks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices technical support for current cross-reference data regarding equivalent clock synchronizer solutions.