TLC2932IPWG4

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TLC2932IPWG4 is a highly integrated oscillator device. It includes an oscillator, a voltage-controlled oscillator, a prescaler, and digital circuitry to control the frequency of the output signal. It is used in high frequency clock applications, such as high speed communication systems, RF systems, digital signal processing, clock and timing circuits, and multimedia products.

Application fields

TLC2932IPWG4 is mainly used in the field of clock and timing applications, including:

• High-speed communication systems, including serial communication and mobile wireless communication.
• RF systems, such as RF modules, RF transceivers, and RFID systems.
• Digital signal processing (DSP) systems.
• Clock and timing circuits, including ASIC/ASSP/FPGA clocks, crystal and clock oscillators, and bus communication interface timing applications.
• Multimedia products and systems, such as HDTV and digital TVs.

Working Principles

TLC2932IPWG4 primarily consists of two main components: an oscillator and an internal voltage-controlled oscillator (VCO) with a prescaler. The oscillator, operating at a frequency set by two resistors and two capacitors, serves as the reference signal for the voltage-controlled oscillator. The VCO divides the input signal down to a frequency range that can be generated with a single capacitor and resistor. The VCO is voltage-controlled, and therefore it can be programmed to generate a wide range of clocks, from tens of kHz up to hundreds of MHz.
The prescaler divides the VCO frequency by a factor of up to 4096. This will enable a range of outputs from a few kHz up to the maximum VCO frequency. The output of the prescaler is further divided by a programmable counter. The counter can be programmed with an 8-bit programmable divisor between 2 and 255. This allows for further flexibility in the frequency of the output signal.
The frequency of the output signal is further adjusted by a manual frequency trimming resistor. The resistor is adjusted to create a final output frequency that is accurate to within +/-50ppm (+/- ± 50 ppm).

Conclusion

TLC2932IPWG4 being a highly integrated clock generator, it is suitable for a wide range of clock and timing application requirements. It has a wide operating frequency range and supports multiple frequencies with just one component. The manual frequency trimming resistor, along with the built-in prescaler and programmable counter, enable accurate frequency control of the output signal.

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