ZL30641LDG1

Overview

The ZL30641LDG1 is a line card timing IC from Microchip Technology, featuring up to five independent clock channels within a 64-lead 9 mm x 9 mm VQFN package. It supports up to 10 differential or CMOS inputs and provides up to 20 single-ended or 10 differential outputs. The device accepts input frequencies from 1 kHz to 1250 MHz and generates output frequencies from 0.5 Hz to 750 MHz. Typical output jitter is 100 fsRMS at 156.25 MHz (12 kHz to 20 MHz bandwidth). Core power consumption is less than 0.9 W, operating on 1.8 V and 3.3 V supplies.

Feature Summary

• Up to five independent clock channels with any-to-any frequency conversion capability
• Supports up to 10 inputs and up to 20 single-ended or 10 differential outputs
• Includes up to eight DPLLs for hitless reference switching and holdover averaging
• Features MiToDSync 1-wire and MiToDBasic 3-wire time-of-day interfaces

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and temperature range. Confirm RoHS compliance status through official documentation before procurement. Ensure ESD handling procedures are followed due to moisture sensitivity classification.

Selection Notes

Select this component when designing carrier-grade systems requiring high channel density and low jitter. Verify that the required number of differential versus single-ended outputs aligns with the ZL30641 configuration. Check if the local oscillator frequency range (9.72 MHz to 400 MHz) meets the stability reference requirements.

Part Context

The ZL30641LDG1 belongs to the ZL3064x family of line card timing ICs. This series includes variants ZL30641 through ZL30645, which differ primarily in the number of internal DPLLs and synthesizer channels available. All members share the same 64-lead VQFN footprint and general feature set.

Replacement Considerations

Consult the ZL3064x product brief for direct substitutes within the family, such as ZL30642, ZL30643, ZL30644, or ZL30645. These parts maintain pin compatibility but offer different channel counts. No cross-family replacements are verified in the source material.