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Product Detailed Parameters
- Description：CLOCK GENERATOR TSSOP-24
- Series：*
- PLL：-
- Mfr：Diodes Incorporated
- Main Purpose：-
- Input：-
- Output：-
- Number of Circuits：-
- Ratio - Input:Output：-
- Differential - Input:Output：-
- Frequency - Max：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The PI6LC48P0401LE is a four-output LVPECL synthesizer from the HiFlex family, designed for Ethernet reference clock generation. It supports output frequencies of 156.25MHz, 125MHz, and 62.5MHz using a 25MHz crystal or single-ended LVCMOS/LVTTL input. The device operates on 3.3V or 2.5V supplies with typical RMS phase jitter of 0.23ps at 156.25MHz (1.875MHz–20MHz). It features separate VDD, VDDA, and VDDO power pins to minimize noise coupling.
Feature Summary
- Four differential LVPECL output pairs
- Selectable 25MHz crystal or LVCMOS/LVTTL single-ended clock input
- Supports 156.25MHz, 125MHz, and 62.5MHz outputs via N_SEL pins
- Typical RMS phase jitter of 0.23ps at 156.25MHz (1.875MHz–20MHz)
- Operates in full 3.3V or 2.5V supply modes
Applications
- Networking systems
- Ethernet interface applications
Procurement Notes
Verify the ordering suffix 'LE' indicates Pb-free and Green packaging in the 24-pin TSSOP. Confirm the 'I' suffix if industrial temperature range (-40°C to 85°C) is required, as standard versions may be commercial grade. Check datasheet revision D for accurate thermal characteristics and pinout details before finalizing procurement.
Selection Notes
Select based on required output frequency: N_SEL settings determine division ratios for 156.25MHz, 125MHz, or 62.5MHz. Ensure power supply voltage matches either 3.3V or 2.5V specifications. Use separate bypass capacitors for VDD, VDDA, and VDDO to maintain low jitter performance. Verify crystal parameters (18pF load capacitance) if using the internal oscillator.
Part Context
This component belongs to the Pericom HiFlex family of high-performance clock solutions, now part of Diodes Incorporated. It is specifically optimized for generating Ethernet reference clocks with low phase noise. The device integrates a proprietary low phase noise VCO technology to achieve superior jitter performance compared to standard synthesizers.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consider checking Diodes Incorporated's current HiFlex portfolio for equivalent LVPECL synthesizers with similar frequency and jitter specifications.
