PT7C4512WE

Clock Generators, PLLs, Frequency Synthesizers Overview

The PT7C4512WE is a PLL clock multiplier manufactured by Diodes Incorporated, designed to generate high-frequency clock outputs from lower frequency crystal or clock inputs. It supports input frequencies of 5-40 MHz for crystals and 4-50 MHz for clocks, producing output frequencies up to 200 MHz. The device features zero ppm multiplication error and low period jitter of 80 ps at 100-200 MHz. It operates on supply voltages between 3.0 V and 5.5 V with an operating temperature range of -40°C to +85°C. The component is housed in an 8-SOIC package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero ppm multiplication error ensures precise frequency generation without drift.
• Internal logic divider provides nine selectable multiplication factors controlled by S0 and S1 pins.
• Low period jitter performance maintains signal integrity across high-frequency operations.
• Duty cycle stability of 45/55% is maintained for output clocks up to 160 MHz.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Replacing crystal oscillators in electronic systems requiring cost-effective frequency translation.
• Clock multiplier applications in data communications equipment.
• Frequency translation devices needing low output jitter.
• High-speed digital systems utilizing fundamental mode PLL techniques.

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix 'WEX' corresponds to the tape and reel packaging format as defined in the manufacturer's documentation. Confirm that the component meets RoHS compliance standards required for your assembly process. Ensure the procurement channel is authorized to guarantee product authenticity and traceability. Check for any specific environmental handling instructions related to moisture sensitivity levels before storage.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a system requires generating multiple standard frequencies from a single source using external pin configurations. Consider the 8-SOIC package constraints regarding PCB layout and thermal dissipation. Evaluate the power supply voltage requirements against the 3.0 V to 5.5 V operational range. Assess the need for low jitter performance if the application involves sensitive high-speed data transmission interfaces.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The PT7C4512 belongs to the family of PLL clock multipliers produced by Diodes Incorporated. It utilizes proprietary analog/digital PLL techniques to achieve zero delay characteristics relative to the input reference. The device serves as a direct replacement for traditional crystal oscillators in many designs, offering flexibility through its selectable multiplication factors while maintaining compact form factor and low power consumption profiles typical of mixed-signal ICs.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes may include other PLL clock multipliers from Diodes Incorporated or Pericom Semiconductor with similar pinouts and electrical specifications. Verify compatibility regarding input/output frequency ranges and supply voltage tolerances. Ensure the replacement package matches the 8-SOIC footprint to avoid PCB redesign. Cross-reference datasheets for identical jitter performance and duty cycle stability metrics.

Clock Generators, PLLs, Frequency Synthesizers FAQ

How are the nine selectable output frequencies determined?

The output frequencies are selected via the S0 and S1 pins, which can be connected to GND, VCC, or left floating (self-biasing to VCC/2) to choose specific multiplication factors such as X2, X4, X5, etc.

What is the maximum output frequency supported by the PT7C4512?

The device supports output clock frequencies up to 200 MHz when operating within the specified supply voltage range of 4.5 V to 5.5 V.

Is external filtering required for the power supply?

No external power supply filtering is required, but a decoupling capacitor of 0.01μF or 0.1μF must be connected close to the VCC and GND pins to minimize lead inductance.