PI6LC48L0201AZHIE

Overview

The PI6LC48L0201AZHIE is a 2-output LVDS synthesizer from Diodes Incorporated's HiFlex family, optimized for Ethernet reference clock generation. It utilizes a 25MHz crystal or single-ended input to produce frequencies of 62.5MHz, 125MHz, and 156.25MHz via two frequency select pins. The device employs proprietary low phase noise PLL technology, achieving typical RMS phase jitter of 0.3ps at 156.25MHz (12kHz–20MHz). It supports full 3.3V or 2.5V supply modes and operates within the industrial temperature range (-40ºC to +85ºC).

Feature Summary

• Generates 62.5MHz, 125MHz, and 156.25MHz Ethernet reference clocks using a 25MHz crystal or CMOS input.
• Provides two differential LVDS output pairs with ultra-low phase jitter (0.3ps typ @ 156.25MHz, 12kHz-20MHz).
• Supports dual voltage operation: 3.3V (+/-5%) or 2.5V (+/-5%).
• Includes master reset, PLL bypass, and selectable input mode (Crystal vs. Ref_IN) via control pins.

Applications

• Networking systems requiring precise clock synchronization.
• Ethernet interface circuits in communication equipment.
• Industrial systems needing low-jitter clock distribution.

Procurement Notes

Verify the ordering suffix ZHIE confirms the component is Pb-free, Green compliant, and packaged in a 20-pin TQFN. The 'E' indicates environmental compliance, while 'ZH' specifies the package type. Ensure the application requires the industrial temperature grade (-40ºC to +85ºC) as specified for this part number. Confirm power supply requirements match either 3.3V or 2.5V rails before integration.

Selection Notes

Select this component when generating standard Ethernet frequencies (62.5/125/156.25MHz) from a 25MHz source is required. It is suitable for designs needing separate analog and digital power isolation (VDDA/VDD/VDDO) to minimize noise. Choose if the system demands LVDS outputs with specific skew characteristics (<50ps) and low RMS jitter. Ensure the PCB layout can accommodate the 20-TQFN package and thermal dissipation needs (QJA 19.80°C/W).

Part Context

This part belongs to Pericom’s HiFlex family of high-performance clock solutions, now under Diodes Incorporated. It is designed specifically for networking applications where low phase noise is critical. The device integrates a VCO, PLL, and oscillator circuitry into a compact form factor, replacing discrete clock generator solutions in modern networking hardware.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the datasheet. Verify pin compatibility and electrical parameters against alternative LVDS synthesizers if cross-referencing is necessary. No direct equivalent part numbers are listed in the official documentation.