PI6C557-05QLE

$2.46

Description：IC CLOCK GENERATOR TSSOP
Series：-

SKU:a5a23caab2aa Category: Application Specific Clock/Timing Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：IC CLOCK GENERATOR TSSOP
Series：-
PLL：Yes
Mfr：Diodes Incorporated
Main Purpose：Ethernet, PCI Express (PCIe)
Input：HCSL, Crystal
Output：HCSL, LVDS
Number of Circuits：1
Ratio - Input:Output：1:04
Differential - Input:Output：No/Yes
Frequency - Max：200MHz
Voltage - Supply：3.135V ~ 3.465V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package：20-TSSOP
Grade：-
Qualification：-

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PI6C557-05QLE

Overview

The PI6C557-05QLE is a PCIe 2.0 compliant spread spectrum clock generator designed for automotive applications, manufactured by Diodes Incorporated. It features four differential HCSL outputs and LVDS compatibility, operating at frequencies up to 200 MHz with a 25 MHz crystal input. The device supports spread spectrum modulation of -0.5%, -1.0%, and -1.5% via external pins. Key electrical parameters include a supply voltage range of 3.135V to 3.465V, typical cycle-to-cycle jitter of 40 ps, and RMS phase jitter of 2.1 ps. It is housed in a 20-TSSOP package and qualified under AEC-Q100 standards.

Feature Summary

PCIe 2.0 compliant with four differential HCSL outputs and LVDS compatibility
AEC-Q100 qualified for automotive reliability requirements
Configurable spread spectrum selection (-0.5%, -1.0%, -1.5%) via external pins
Low jitter performance: 40 ps cycle-to-cycle and 2.1 ps RMS (typical)

Applications

Automotive embedded systems requiring EMI reduction
PCI Express Gen 2 clock generation
Ethernet timing applications

Procurement Notes

Verify the specific ordering suffix 'LE' confirms lead-free and green packaging within the 20-pin TSSOP format. Confirm that the 'Q' designation aligns with the required automotive grade specifications and temperature range. Ensure the datasheet revision matches the intended design implementation.

Selection Notes

Select this component when automotive qualification (AEC-Q100) is mandatory for PCIe 2.0 clocking. Choose based on the need for configurable spread spectrum options to manage EMI. Verify that the 20-TSSOP package dimensions fit the PCB layout constraints and that the 3.3V supply voltage is stable within the specified tolerance.

Part Context

This part belongs to the PI6C557 series of clock generators from Pericom Semiconductor, now part of Diodes Incorporated. The 'Q' suffix indicates an automotive-grade variant, while 'LE' specifies the lead-free and green packaging configuration. It is distinct from non-automotive versions like the PI6C557-05.