ZL30735ALDG1

Overview

The ZL30735ALDG1 is a network synchronizer featuring five independent clock channels, ten inputs, and up to twenty outputs. It supports any-to-any frequency conversion with input frequencies from 0.5 Hz to 1250 MHz and output frequencies up to 750 MHz. The device integrates eight DPLLs for precise phase locking and holdover, achieving typical output jitter of 100 fsRMS at 156.25 MHz. It operates on 1.8V and 3.3V supplies within a 64-lead VQFN package.

Feature Summary

• Five independent clock channels with up to 10 differential/single-ended inputs and 20 CMOS/10 differential outputs
• Up to 8 DPLLs providing hitless reference switching and high-resolution holdover averaging
• Supports SyncE, IEEE 1588, and various ITU-T packet timing compliance profiles
• Configurable via SPI or I2C with internal Flash memory for automatic self-configuration

Applications

• Central system timing ICs for SyncE, SyncE+1588, routers, switches, and OTN systems
• Wireless base stations including 3G, W-CDMA, 4G/LTE, LTE-A, and 5G networks
• Remote Radio Units (RRU), Remote Access Networks (RAN), small cells, and wireless backhaul

Procurement Notes

Verify the specific ordering suffix 'A' against the manufacturer's current documentation to confirm pinout, voltage, or feature variations. Confirm the package type is the 64-lead VQFN. Ensure compatibility with required supply voltages of 1.8V and 3.3V during integration planning.

Selection Notes

Select this model when five independent clock channels are required. Verify that the application needs up to 10 inputs and 20 outputs. Check if the device supports the specific ITU-T G.8273.2 or G.8273.4 profiles needed for the network synchronization architecture.

Part Context

This component belongs to the ZL3073x family of PTP and SyncE Network Synchronizers. The family includes models ZL30731 through ZL30735, which vary by the number of available channels and I/O configurations while sharing core synchronization technologies.

Replacement Considerations

Other members of the ZL3073x family may serve as alternatives depending on channel count requirements. Verify pin compatibility and feature parity before substitution.