PT7C4511WE

Clock Generators, PLLs, Frequency Synthesizers Overview

The PT7C4511WE is a PLL clock multiplier manufactured by Diodes Incorporated, designed for synthesizing and distributing high-speed clock signals. It operates on a single supply voltage ranging from 3.0V to 5.5V and supports input frequencies between 1 MHz and 50 MHz. The device generates output frequencies up to 200 MHz at 5.0V or 180 MHz at 3.3V. Clock multiplication ratios are selectable via S0 and S1 pins, offering factors of ×2, ×2.5, ×3, ×4, ×5, ×6, ×8, and fractional multipliers such as ×(10/3) and ×(16/3). The component utilizes an internal crystal oscillator or external clock input and features a tri-state output controlled by the OE pin.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates a phase-locked loop with a crystal oscillator for precise frequency synthesis
• Provides flexible clock multiplication ratios through configurable select pins
• Features a tri-state clock output enabled by an internal pull-up resistor
• Supports both crystal connection and direct clock input modes

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed clock distribution in digital systems
• Frequency translation and clock smoothing applications
• Datacom and telecom system timing circuits

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify that the ordering suffix matches the required package and reel configuration. The 'W' designation indicates an SOIC-8 package, while the 'E' suffix confirms lead-free and green manufacturing compliance. The 'X' suffix specifies tape and reel packaging. Confirm the specific part number variant against the manufacturer's current datasheet revision to ensure compatibility with design requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single-supply PLL clock multiplier is required for frequencies up to 200 MHz. Ensure the application voltage falls within the 3.0V to 5.5V range. Verify that the desired multiplication factor aligns with the available S0 and S1 pin configurations. Consider the operating temperature range of -40°C to +85°C for environmental suitability.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The PT7C4511 belongs to Diodes Incorporated's family of PLL clock drivers and multipliers. It shares functional similarities with other devices in the PI6C series but is distinct in its specific multiplication options and package configuration. This model is specifically engineered for applications requiring low jitter and flexible frequency generation from a single reference source.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative PLL clock multipliers based on matching supply voltage, maximum output frequency, and package dimensions if substitution is necessary.

Clock Generators, PLLs, Frequency Synthesizers FAQ

How is the clock multiplication ratio determined?

The multiplication ratio is determined by the logic states of the S0 and S1 pins. These pins can be connected to GND, Vcc, or left floating (which self-biases to Vcc/2) to select specific integer or fractional multipliers.

What is the function of the OE pin?

The OE (Output Enable) pin controls the state of the CLK output. When the OE pin is low, the clock output is tri-stated. The pin includes an internal pull-up resistor, defaulting the output to active when unconnected.

Can the device operate without a crystal?

Yes, the X1/ICLK pin can accept an external clock signal directly. In this mode, the X2 pin should be left unconnected.