ZL30632LDG1

Overview

The ZL30632LDG1 is a system synchronizer from the ZL3063x family, featuring two independent clock channels. It accepts up to ten differential or single-ended inputs and provides up to ten differential outputs or twenty CMOS outputs. The device supports any-to-any frequency conversion with input frequencies ranging from 0.5 Hz to 1250 MHz and output frequencies from 0.5 Hz to 750 MHz. It integrates eight digital phase-locked loops (DPLLs) for timing compliance with ITU-T G.8262, G.813, and other standards. The component operates on 1.8V and 3.3V core supplies within an operating temperature range of -40°C to +85°C.

Feature Summary

• Two independent clock channels with up to eight DPLLs for high-resolution holdover and hitless reference switching.
• Supports up to ten inputs (differential/single-ended) and up to ten differential or twenty CMOS outputs.
• Integrates MiToDSync and MiToDBasic interfaces for time-of-day synchronization.
• Features programmable bandwidth, tracking range, and per-synthesizer phase adjustment with 1 ps resolution.

Applications

• Central system timing ICs for Synchronous Ethernet (SyncE) and IEEE 1588 networks.
• Wireless base stations including 3G, W-CDMA, 4G/LTE, LTE-A, and 5G architectures.
• Carrier-grade routers, switches, and Optical Transport Network (OTN) equipment.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and temperature grade. Confirm availability through authorized Microchip Technology distributors as supply levels vary by region. Ensure the selected variant matches the required number of active channels and output configurations for the design.

Selection Notes

Select this model when two independent clock channels are sufficient for the application. Compare with ZL30631 (one channel), ZL30633 (three channels), ZL30634 (four channels), and ZL30635 (five channels) based on I/O requirements. Verify that the VQFN-64 package fits the PCB layout constraints and thermal management plan.

Part Context

The ZL30632LDG1 belongs to the ZL30631-ZL30635 family of system synchronizers. These devices share a common architecture supporting up to five channels, ten inputs, and twenty outputs. The family is designed for carrier-grade timing applications requiring low jitter and precise phase alignment across multiple network interfaces.

Replacement Considerations

Direct functional replacements within the same package include ZL30631LDG1, ZL30633LDG1, ZL30634LDG1, and ZL30635LDG1. Selection depends on whether fewer or additional clock channels are needed. Cross-family replacement requires verification of pin compatibility and register configuration.