PT7C5035BLC-5GWF

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The PT7C5035BLC-5GWF is a fully integrated programmable clock generator. It is designed for application-specific clocking needs that require flexibility, integration, optimized features and performance. The device integrates the reference oscillator, phase-locked loop, transconductance phase detector, loop filter and integrated voltage-controlled oscillator into a single package for small footprint and system cost savings.

Application Field

PT7C5035BLC-5GWF is specifically designed for wide range of frequency synthesizing applications across many industrial, consumer, communications and other electronic fields. It can generate frequency output up to 5GHz and supports spread spectrum, dual mode output and selectable slew rate output. Utilizing the dual mode or spread spectrum feature can reduce EMI/EMC issue in telecom and computer applications. The clock generator is designed to provide a low power, low jitter and low noise solutions.

PT7C5035BLC-5GWF is suitable for applications like data transmission, radio frequency transceiver, limited rate transceiver, base-station and routers. The device can also be used in consumer applications such as computer, broadcast, and digital consumer, displays and remote monitoring. Also, it is suitable for automotive service as car navigation systems and advanced driver assistant. Various digital processing and interface are also supported by this device, like FPGA, DSP, ASICs and specialized applications.

Working Principle

The PT7C5035BLC-5GWF is designed to achieve a high level of flexibility and performance needed in application-specific clocking. The device consists of an internal reference oscillator, a circuit to generate the differential clock outputs, a voltage-controlled oscillator, a phase-locked loop, transconductance phase detector, loop filter, and control logic. The reference oscillator sets the reference clock, which serves as the reference for the PLL circuitry. The PLL circuitry detect the phase difference between reference and feedback clock, it then shapes and filter these difference and sends it to the VCO circuit to adjust the frequency of the output clock. In this way, the PLL can frequency-lock a clock to the reference clock and generate stable output clock and provide low jitter performance.

The crystal oscillator produces an AC signal which is then amplified and fed into the PLL and reference for the comparator that the loop filter is connected to. The loop filter is used to filter the input and smooth out the reference signal. The comparator compares the reference with the voltage output of the loop filter, and uses this output as a control voltage to adjust the VCO frequency to match the reference frequency. The result is a stable frequency output which is tuned to match the reference frequency.

Conclusion

The PT7C5035BLC-5GWF is an innovative and flexible solution designed to meet today’s application-specific clocking needs. It is designed to offer a low power, low noise and low jitter solution for various industrial, communications, automotive and consumer applications. With integrated features including reference oscillator, phase-locked loop, transconductance phase detector, loop filter and voltage-controlled oscillator, the device offers substantial performance for clocking needs that require flexibility, integration and optimization.

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