- Home /
- Search about agc
Page 2 about agc | |
Total Found: 57 |
-
This is the circuit diagram of the simplest single chip AM radio. The circuit is designed around the IC ZN414Z which is a ten transistor tuned radio frequency receiver. The IC has only three leads and is available in the TO92 package. All necessary circuits....
-
The AGC is used in many system especially communications. This AGC? works at 50Mhz, and the output voltage is set by a digital signal that is needed by...
-
Automatic Gain Control or AGC is a circuit design which maintain the same level of amplification for sound or radio frequency. If the signal is too low the....
-
This receiver covers 8.5 to 11.5 MHz in two bands and has a sensitivity of under 1 ?V. Nn NE602 mixer feeds a 455-kHz IF amplifier (Q1 and Q2), detector D4, and audio amplifier IC2. Q4 serves as an AGC amplifier coil data is given in the table. The LO is....
-
The LV2282VA is an FM Transmitter IC. MPX block makes stereo modulated, composite signal from L and R sound inputs. RF VCO include FM modulation function. Audio AGC function keeps FM modulation well regulated. PLL 2 synthesizer determines RF output frequency....
-
This section serves to strengthen the signal until the signal level is required. IF amplifier is equipped with AGC (Automatic Gain Controller) which controls the strengthening of the IF amplifier so that a constant amplitude output video. Amplifier frequency....
-
This MK484 AM radio circuit provides a complete solution including : RF amplifier, Detection and AGC circuit (automatic gain control ), which requires only a few external components to give a high quality AM Tuner. The circuit has an input impedance of....
-
ASSP For Communication AN12979A AN12979A is the stereo BTL Amplifier which contained the AGC circuit for clip prevention of a speaker output. 2 This IC performs a mode change by the I C bus control system. (Standby function ON/OFF change etc. ) By Panasonic....
-
The AN12974A Audio Power Amplifier features built-in AGC circuitry and Spatializer environ, . , The Spatializer environ, is Desper Products, Inc. `s exclusive signal processing technology that is able to generate surround sound for low-power mobile....
-
This IF system uses a NE602 oscillator/mixer to convert VHF TV signals of 60 to 72 MHz (channe13 or channel4 under the U.S. NTSC) to 45 MHz. An SAW filter is used to provide bandpass filtering, followed by an LM1823 video IF/AGC/AFC/detector IC. Recovered....
-
The 200 MHz JFET has same features below: 1. Low crossmodulation 2. Large-signal handling ability 3. No neutralization 4. AGC controlled by biasiing the upper....
-
TV video processor. The EGG 1134 contains a picture IF amplifier, avideo detector,a video amplifier,keyed AGC with noise immunity, delayed AGC for thetuner, an AFT amplifier, a sound IF amplifier, asound carrier detector, a4.5 MHz sound carrier amplifier and....
-
Here is a schematic of a good quality AM radio receiver circuit. The heart of the circuit is MK484 AM radio IC. It is a high sensitivity and high quality IC, it has only three leads and comes in TO92 package and require only few external parts because all....
-
RF detector circuit, RF amplifier circuit, auto gain control circuit (AGC) etc is already built inside the IC due to which you can easily build a high quality and sensitive am receiver using this IC. The ZN415E IC is an advance version of ZN414 IC, the....
-
CD-ROM 48X RF AMP Chip is RF pre signal processor and processes signals from optical pick-up. This chip processes main signal through summing amp, AGC block, EQ block, and generates SERVO error signals for SERVO control. It CAN playback CD-ROM and CD-RW....
-
An audio amplifier connected to the output will emit loud click sound for each lightning strike detected. When severe storms are approaching, this receiver will go crazy - producing hundreds of clicks per minute. This is a direct detection amplified....
-
It took sometime to develop this interface for Echolink. It uses PIC16F84A and accepts external DTMF from Radio. My Latest Version Foxecho-k7 provides total isolation between Rig And PC and has AGC on received audio. Delay on this project was in part of....
-
This project is a digital Automatic Gain Control (AGC”) system using a PIC16F876 MCU. The ability to set the gain level in a circuit and have it control itself is a very useful function. This circuit is a building block of another project I am working on. A....
-
This is an early picture of my discolight effect. Because of the AGC circuit theres no need for potentionmeters for sensitivity adjust. I replaced them with trimmers. Now the microphone is on the control electronics because theres no need to place it outside....
-
You can build an automatic gain control AGC for the superhet receiver with only a few additional components. The first AGC circuit is more universal. It is suitable for audio amplifiers with dual op amps like TL072, TL082, NE5532 and the broadband amp NE592....
-
This one-valve (ECL82) CW Transmitter occupies a very special place in my amateur radio history. I was first licensed in 1994 but did not operate on air. I committed to only ever operate equipment which I had made myself. I had no time for radio construction....
-
To keep the gain constant, the circuit used an incandescent pilot light to provide AGC (automatic gain control). As is true for all incandescent bulbs, the pilot light has nonlinear resistance. When you turn on the circuit, the cold lamp`s resistance is low,....
-
The I.F. amplifier is similar to the one used in the 80M receiver project . The original design has been modified by putting a couple of LED`s in the source circuit of each Mosfet. The voltage drop across the LED`s keeps the source voltage at about two....
-
This true SSB transceiver is built around just 5 vacuum tubes, with no transistors nor ICs. Superhet receiver with AGC and S-meter drives a loudspeaker, 5W transmitter, very stable VXO uses CB crystals to cover 20m ham band. A project for skilled RF....
-
In general, the transceiver switches the 4-element 1500 ohm xtal BPF ends between the inputs and outputs of the two SA602s to reverse the signal flow for R/T operation. Since no IF amplifier is used in the design, 20 dB of additional receiver gain is....