Designing with Data/Audio Switches – Video Tutorial
Below is a video tutorial about Analog Semiconductors: Designing with Data/Audio Switches. An electronic products such as iPhone or MP3 now have USB and headphone combine in one plug. On this video...
View ArticleTL084 Audio Compressor (AGC)
Compressor or AGC (automatic gain control) is used to manipulate the average amplitide of audio signal, to produce relatively constant volume of signal from high dynamic signal source. The 2N3819 JFET...
View ArticleLM1893 Powerline Audio Transmission
This is Powerline Audio Transmission circuit using LM1893. This circuit uses LM1893 that is designed to allow analog data reception and transmission. The carrier is modulated by base-band...
View ArticleAudio Speech Compressor
There are many low power SSB rigs and kits don’t have any real speech processor circuitry, although there is a built in speech processor in most modern HF. Speech processing is an important thing, when...
View ArticleAudio Decibel Level Meter
This is a circuit of Audio Decibel Level Meter. This circuit uses the SA604 which not only designed as an RF device but also the Received Signal Strength Indicator (RSSI). In a cellular radio, the...
View ArticleTSH22 Audio Line Driver
This is an audio line driver circuit using a TSH22. The advantages of this circuit are low distortion, exhibits a wide bandwidth and an output current sufficient to drive medium impedance loads at a...
View ArticleAudio Frequency Meter Using 555 IC
This audio frequency meter uses 555 IC as a monostable multivibrator (one-shoot trigger). A monostable multivibrator can act as a frequency-to-voltage converter because it produce a fixed pulse width,...
View ArticleVoltage-Controlled Stereo Volume Control Using LM13600 OTA
What we can do with a stereo voltage-controlled volume control? There so many things, we can control our audio using a DAC which is controlled by a microcontroller, or we can use mono potentiometer...
View ArticleAnalog Audio Delay Line: Expand Your Virtual 3D Sound Space
It is fun to make a variable space in your small room, but it’s hard to make the actuator to move your wall or room partition. Using analog audio line delay, you can adjust your room virtually. Just...
View ArticleBlackbox Sustain, An Audio Effect for Electric Guitar
Sustain effect in electric guitar is similar with compressor effect. The purpose of this effect is to make the note last longer when the string is plucked. The mechanism is actually work by controlling...
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