Decoder Circuits
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The particular circuit does?t have the requirement to replace the trade decoders Surround, because this they have many more facilities and possibilities. It give however the possibility in many try with this article of decoding. The coding in Stereo Dolby....
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The receiver chip uses a Panasonic 4602 38KHz receiver and that's it for external components. It has the serial input (GP3) , two RC hobby servo outputs (GP0/GP1) and three digital outputs (GP2,4,5). Here is the code for the receiver chip. It is a bit of a....
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The Talking Phone Dial Monitor detects the
tones generated when numbers are dialed
on your touch tone telephone and speaks
the numbers that were dialed. This verifies
that you dialed the correct number and is
especially useful when the keypad is not....
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The video switcher described here can display the output of two, three, or four cameras on a single monitor. The number of cameras is set by a DIP switch on the circuit board. That feature avoids blank displays if less than four cameras are used by....
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The UNIVERSAL HOLD circuit detects the dual tone, multi frequency (DTMF) tone that is
generated when the # key is pressed and then activates a circuit that partially loads the telephone line
so that the central office thinks a phone is still off hook even....
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This design explains how to use an encoder to set the number shown by a 7-segment display. Turn the knob clockwise to increment the number, turn it counterclockwise to set it back. Encoders are the most practical (and handy) way to set a large number of....
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The given circuit, when connected in parallel to a telephone, dis- plays the number dialled from the telephone set using the DTMF mode. This circuit can also show the number dialled from the phone of the called party. This is particularly helpful for....
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Another application of FVC (frequency-to-voltage converter) is tone/frequency decoder. This circuit is used to determine the frequency band of an oscillation...
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Surround Sound Decoder circuit diagram. The circuit`s operation starts as the stereo sound signal transports surround sound information on the master volume part of the circuit. This will drive the Left channel Lch attached to Model TL072 IC1A and IC1b in....
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Simple Surround Sound Decoder. Introduction This surround-sound decoder is based on the Hafler principle, first discovered by David Hafler sometime in the early 1970s. The original idea...
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Making your own universal remote control systems today is very easy. Such procure the relevant chips, assemble them and here goes, your hi-tech remote control device is working for you. Here we explain a couple remote control chips especially designed for....
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As you can see from the article LPT port expander, this PPI-8255 is a general purpose I/O programmable function. But usually this IC are tired to the computer bus directly. Return to this idea, here I will show you that the card can be used to dual function....
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Luminescent diode LED Made of GaAs of special semiconductor material, gallium arsenide photphide, etc. can use singly, also can assemble the segment type or lattice LED display device semiconductor display device of the composition. Display unit of sectional....
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The pilot detector output is designed as an open collector output, therefore an external pull up resistor is needed. To force the decoder to "MONO" Pin 19 has to be clamped to a voltage below 0. 8V...
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This surround-sound decoder is based on the "Hafler" principle, first discovered by David Hafler sometime in the early 1970s. The original idea was to connect a pair of speakers as shown in Figure 1, for use as the rear speakers in the surround setup. This....
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The Encoder and Decoder are different kind ofcombinationalcircuits which are used to convert binary information to decimal, octal and hexa decimal andvice-versa. A decoder iscombinationalcircuitwhich is used for to convert n it binary information to 2n....
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Our DTMF decoder can be powered from a 9V battery or from your parallel printer port. It can detect and display all 16 DTMF digits on your computer screen in real-time. The Window`s program can be placed in the minimize mode and still detect tones while you....
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Another application of FVC (frequency-to-voltage converter) is tone/frequency decoder. This circuit is used to determine the frequency band of an oscillation signal. This circuit is used in many application like determines the frequency band in the signal....
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The main system is the user interface and control system. The phone line was chosen as the method of interfacing because it has distinct advantages over other systems in communicating information from a distance. The next image serves as a block diagram for....
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Here we explain a couple RF 433kHz remote control chips especially designed for the purpose. The IC TWS-434 along with its encoder chip HOLTEK`s HT-12E form ahigh class transmitter circuit, whereas the chip RWS-434 through its complementing decoder IC HT-12D....
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This part of my site features a stereo decoder circuit suitable for both my pulse counting FM Receivers and other types of FM Tuner, such as the old valve type that incorporates a Foster Seeley or Ratio Detector. This particular stereo decoder IC, MC1310P....
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DTMF Touch Tone Decoder Using Microchip PIC Microprocessor This project contains the details of using a Microchip PIC12F683 8 bit microprocessor to detect....
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This is a circuit for universal decoder that has functions as either a dual 1-of-4 decoder or as a single 1-of-8 decoder, depending on the signal applied to the Mode Control (M) input. Here`s the figure of the test circuit; In the dual mode, each half has a....
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The operation of the circuit starts up and transport the stereo surround sound signal quality information on the master volume circuit. This will drive the left channel connected to LCH Model TL072 IC1A IC1B and attached to the right channel Rch. The outputs....
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Can i use the following circuit or is there any special IR decoder IC and schematics available If the decoder supports any remote is good and well, is it possible But i want to control variable resistor via IR without relays(Means not any different fixed....
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