PI6C557-05BLE

Ratio - Input:Output:	1:4
Base Part Number:	PI6C557
Supplier Device Package:	20-TSSOP
Package / Case:	20-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	3.135 V ~ 3.465 V
Frequency - Max:	200MHz
Differential - Input:Output:	No/Yes
Series:	--
Number of Circuits:	1
Output:	HCSL, LVDS
Input:	HCSL, Crystal
Main Purpose:	Ethernet, PCI Express (PCIe)
PLL:	Yes
Part Status:	Active
Packaging:	Tube

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The PI6C557-05BLE chip is a high-performance timing and clock IC built by Pericom Technology Corporation. It is designed to be used in a wide range of applications including: Ethernet, DDR SDRAM and Flash memory control, PCI Express, SATA, and USB signaling. This IC is part of the company’s “PAS” series of clock/timing ICs, which are designed to provide superior performance, superior features, and superior cost savings compared to other timing/clock ICs available on the market today.In terms of application-specific performance specs, the PI6C557-05BLE has the following attributes:

• 3.3V single supply
• 16 Special Function registers
• 17 Input/Output selection pins
• Five programmable I/O drivers
• Three phase outputs
• Two differential outputs
• Selectable clock inputs
• Two types of spread-spectrum function

The PI6C557-05BLE is a great choice for system designers looking for a flexible, feature-rich clock/timing IC. Its clock/timing functions include frequency generation, phase shifting, and spread-spectrum frequency modulation (SSFM). It also features an auto-calibrate feature that allows the user to make adjustments to the frequency of the signal with minimal effort.The main purpose of the PI6C557-05BLE is to provide timing and clock functions in a wide range of applications. It is designed to be used in different kinds of signal transmission systems such as Ethernet, DDR SDRAM and Flash memory control, PCI Express, SATA and USB signaling. The chip also includes multiple I/O selection pins, programmable I/O drivers, multiple phase outputs and 2 differential outputs.The PI6C557-05BLE chip offers the following advantages for application-specific designs:

• Flexible and feature-rich clock/timing functions
• Low jitter for critical timing applications
• High slew rates for high frequency signals
• Easy to program and integrate into existing systems
• Small package accompanied by 3.3V single supply
• Multiple output clock trees with multiplexer support
• Robust and reliable

The PI6C557-05BLE is designed to operate at a frequency of 10MHz to 25MHz and consumes very low current, with typical current consumption ranging between 5 and 20mA. The maximum power dissipation for the chip is 140mW, allowing it to be used in a wide range of battery operated applications.The silicon die of the PI6C557-05BLE has been designed with a special flip-chip process to ensure the best possible signal integrity. The high-speed clock and timing functions are also built-in, allowing the user to easily select the right functionality as and when it is needed.In terms of its working principle, the PI6C557-05BLE consists of a main control logic circuit and a set of specialised clock input, clock output, and I/O pins. The control logic of the IC contains a two-stage, 8-bit PLL register. The first stage is used to globally control the frequency of the output clock, while the second stage is used to adjust the order of multiple output clock signals, commonly needed for multi-point timing systems. In addition, the PI6C557-05BLE contains a set of I/O pins with programmable logic functions to control secondary timing and clock signals, such as reset signals and clock enable signals for DDR. And finally, it can also be used to generate phase-shifted and SSFM signals.The PI6C557-05BLE is an extremely powerful and highly versatile IC, providing a wide range of capabilities for timing and clock applications. Its low power consumption and extensive feature set make it an ideal choice for portable, low-power applications where space is at a premium. Furthermore, its intuitive design ensures a smooth integration path into existing design environments, making it a great choice for designers looking for a robust and reliable clock/timing IC.

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