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Phase-Locked Loop Circuit Design Dan H. Wolaver
Publisher: Prentice Hall

To study characteristics; realize circuits; design for signal analysis using Op-amp ICs. The phase locked loop circuits are essential parts especially for frequency modulation and demodulation in System on Chip (SoC) integratedcircuits. To study the applications of Op-amp. To study internal functional blocks and the applications of special ICs like Timers, PLL. VCO is the major part of PLL circuit and it affects the system performance in terms of power consumption and noise performance. The Silicon Creations Fractional-N PLL (block diagram shown in Figure 2) suppresses this noise with the addition a feed-forward compensator that feeds directly into the loop filter, and is able to achieve jitter in Fractional mode very close to that achieved in integer mode. Phase-locked loops (PLLs) are widely used on designs such as frequency synthesizers and clock recovery circuits. The control board is designed with high performance MCU STC series?its performance is better than AT89C2051. Transmitting power can switch between 2W and 15W. The motherboard is applied with chip BH1415F, which is the new-generation integrated NC FM stereo radio chip by ROHM, built-in PLL frequency, audio pre-emphasis, limiter and low pass filter circuit. This PLL includes the prescaler and a serial standard bus called SPI. FM Transmitter with PLL In order to simplify the transmitter design, we've used the new pll circuit from Motorola :the MC145170. Its successful phase-locked loop (PLL) circuit design and evaluation tool. With microphone and audio input of the amplifier, adjustable input level. The Second Edition includes the essential topics needed by wireless, optics, and the traditional phase-locked loop specialists to design circuits and software algorithms. Long term jitter as small as 2ps RMS has been Thus the PLL Period Jitter (PJ, also known as short term jitter) must be known in order for the circuit to have sufficient timing margin. PLL block contains a phase detector, a charge pump, a loop filter, and voltage controlled oscillator circuit. This is the simple electronic siren schematic, built using three ICs: CD4011 NAND gate logic, CD4066 Bilateral Switch and CD4046 Micro power Phase-Locked Loop (PLL).