AD9558BCPZ-REEL7

Overview

The AD9558BCPZ-REEL7 is a quad-input multiservice line card adaptive clock translator with frame sync, manufactured by Analog Devices Inc. It operates within an industrial temperature range of -40°C to +85°C and utilizes a 64-LFCSP-VQ (9x9 mm) package. The device supports input reference frequencies from 2 kHz to 1250 MHz and generates output frequencies ranging from 352 Hz to 1250 MHz. Supply voltages include DVDD3/AVDD3 at 3.135 V to 3.465 V and DVDD/AVDD at 1.71 V to 1.89 V. It features four single-ended or differential reference inputs and six pairs of configurable clock outputs supporting CMOS, HSTL, and LVDS logic levels.

Feature Summary

• Supports GR-1244 Stratum 3 stability in holdover mode and smooth reference switchover with minimal phase disturbance.
• Integrates a digital PLL with programmable loop bandwidth from 0.1 Hz to 5 kHz for low-noise system clock multiplication.
• Provides four reference inputs and six pairs of distribution clock outputs configurable as differential LVDS/HSTL or single-ended CMOS.
• Includes on-chip EEPROM for storing multiple power-up profiles and supports software-controlled power-down.

Applications

• Network synchronization including synchronous Ethernet and SDH to OTN mapping/demapping
• SONET/SDH/OTN clocks up to 100 Gbps, including FEC
• Stratum 3 holdover, jitter cleanup, and phase transient control

Procurement Notes

Verify the REEL7 suffix indicates reel packaging when sourcing. Confirm the specific voltage supply requirements (DVDD3/AVDD3 and DVDD/AVDD) match the target design constraints. Ensure ESD precautions are observed during handling due to moisture sensitivity and component type.

Selection Notes

Select this component for applications requiring adaptive clock translation across multiple protocols such as SONET/SDH and synchronous Ethernet. Consider the 64-lead LFCSP package dimensions for PCB layout. Evaluate the maximum output frequency capabilities against the required system clock speeds.

Part Context

This part belongs to the AD9558 series of clock translators designed for multiservice line cards. It serves as a low loop bandwidth clock multiplier providing jitter cleanup and synchronization for systems like synchronous optical networks. The device replaces traditional PLL designs by eliminating the need for external VCXOs.

Replacement Considerations

Refer to the AD9557 for a two-input/two-output version of the same device family if a smaller package or fewer I/O channels are required.