Fsk Circuit Diagram. Fsk receiver block diagram the transmitter circuit is built around cd4066b quad bilateral switch ic1 a digital pulse generator xfg3 high frequency oscillator xfg1 low frequency oscillator xfg2 and 7404 hex inverter ic2. These two are connected to two band pass filters.
Fsk receiver block diagram the transmitter circuit is built around cd4066b quad bilateral switch ic1 a digital pulse generator xfg3 high frequency oscillator xfg1 low frequency oscillator xfg2 and 7404 hex inverter ic2. Both d1 and d2 ensure that the fsk signal is limited to about 600 mv amplitude. The diagram shows a low pass filter made of r1 and c2.
Following is the diagrammatic representation.
The standard speed of these machines was 45 baud equivalent to about 45 bits per second. Fsk is widely used in modems radio teletype and fax. Details of the source frequency and nature of signals are given in the table. 1 block diagram of hc hct4046a in a typical pll circuit.
