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AM Detection using PLL

AM Detection using PLL: AM Detection – A PLL can be used to demodulate AM signals as shown in the Fig. 2.133. The PLL is locked to the carrier frequency of the incoming AM signal. Once locked the output frequency of VCO is same as the carrier frequency, but it is in unmodulated form. The …

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Frequency Shift Keying Demodulator Working

Frequency Shift Keying Demodulator Working (FSK): In digital data communication, binary data is transmitted by means of a carrier frequency. It uses two different carrier frequencies for logic 1 and logic 0 states of binary data signal. This type of data transmission is called Frequency Shift Keying (FSK). In this data transmission, on the receiving …

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Block Diagram of Frequency Synthesizer using PLL

Block Diagram of Frequency Synthesizer using PLL: The Block Diagram of Frequency Synthesizer using PLL that can produce a precise series of frequencies that are derived from a stable crystal controlled oscillator. The Fig. 2.130 shows the Frequency Synthesizer Block Diagram. It is similar to frequency multiplier circuit except that divided by M network is …

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IC 565 PLL

IC 565 PLL | Pin Diagram | Block Diagram: IC 565 PLL is available in a 14 pin DIP package and 10 pin metal can package. Fig. 2.124 shows 14-pin package configuration for IC 565 and Fig. 2.125 shows the block diagram for IC 565. IC 565 Pin Diagram: IC 565 Pll Block Diagram: The …

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Foldback Current Limiting Circuit

Foldback Current Limiting Circuit: The disadvantage of constant current limit is relatively large power dissipation in the series pass transistor when the load terminals are shorted. Thus a large power rating transistor is required. The Foldback Current Limiting technique allows us to provide the necessary load current at rated voltage but reducing the short circuit …

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