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Suitable comparator circuit headset detection – Circuit Schematic
Suitable comparator circuit headset detection
Headphone type detection circuit according to the figure attached. Figure, 2.2k RMIC-BIAS resistor connected to the audio controller provides a low noise refere...
KD9562 octave analog sound music circuit – Circuit Schematic
KD9562 octave analog sound music circuit
KD9562 music octave circuit is analog sound circuits can be issued rifle sound, space shots, game console sound, dual-tone door so sound, the sound of bomb expl...
Electronic lark sounds circuit – Circuit Schematic
Electronic lark sounds circuit
The electronic circuit birds under different lighting, especially in the vagaries of the neon light irradiation, can be issued fluctuated, changing tone sound o...
Audio DA converter and amplifier circuit – Circuit Schematic
Audio DA converter and amplifier circuit
MP4 audio circuitry is shown, it is by the audio D/A converters and audio amplifier combination circuit, which has a body product circuit simple, suitable for u...
Oscilliscope Theremin with Joule Thief circuit – Circuit Schematic
Oscilliscope Theremin with Joule Thief circuit
A light Theremin built with a oscilliscope panel with added Joule Thief. I used a 10 K variable resistor for pitch control and a 20 K variable resistor for volu...
Household voice recording circuit – Circuit Schematic
Household voice recording circuit
The voice recorders entry information can be stored for 100 years, repeat 100,000 times, power consumption...
Audio frequency multiplier circuit diagram – Circuit Schematic
Audio frequency multiplier circuit diagram
The circuit can be selectively tuned in two very close in tone. Selective frequency is determined by the value of the feedback circuit collector and the base of...
AN7522 circuit diagram – Circuit Schematic
AN7522 circuit diagram
AN7522 is the product for Panasonic stereo audio amplifier IC, the output power of 3W / 8 ohms, with a standby function and a small static power consumption, lo...
The same capacitance parameters 12dB-oct low-pass filter – Circuit Schematic
The same capacitance parameters 12dB-oct low-pass filter
In this circuit, A = 1, port = o.5, passive vent filter without distinction. When only care when dry l; Q = 1 / (3 - A), 12dB / oct filter of Butterworth King F...
LM386 making music with a voice-activated lights circuit – Circuit Schematic
LM386 making music with a voice-activated lights circuit
VD1, VD2, C1 and C2 form a simple half-wave rectifier capacitor step-down voltage regulator circuit, the output of about 12V in straight right current voltage s...
Superior performance combination of home theater AV circuit – Circuit Schematic
Superior performance combination of home theater AV circuit
The AV combination as shown in lo-2, the first stage Philips TDA1029 four-input switching signal for the switch; the second stage uses NE5532 as preamplifier, B...
Audio signal control circuit – Circuit Schematic
Audio signal control circuit
Audio signal control circuit It shows a typical audio signal control circuit. Two audio signal into the integrated circuit through the switching and tone (trebl...
Cutoff frequency 48dB-octSCF low-pass filter circuit – Circuit Schematic
Cutoff frequency 48dB-octSCF low-pass filter circuit
In order to obtain wax dB / oct low pass filter of Butterworth times, the four 12dB / oct (2-order filter) block were four series, in order to obtain the flat c...
Five sections of the spectrum display circuit – Circuit Schematic
Five sections of the spectrum display circuit
Is the use of LM324 as a band-pass filter, LB1405 for five-band spectrum display drive display circuit. Point 3 is selected frequency harmonic relationship, the...
Suppressor circuit diagram for singing karaoke – Circuit Schematic
Suppressor circuit diagram for singing karaoke
Tape output circuit by the left and right channel signals through the first buffer amplifier, the output signal of two routes, all the way directly to the ampli...
Low-pass filter circuit diagram subwoofer – Circuit Schematic
Low-pass filter circuit diagram subwoofer
Many subwoofer low-pass filter circuit , this is just another. Circuit given here are based on discharge from ST Microelectronics shipped TL062. TL062 is a dual...
Computer microphone circuit diagram – Circuit Schematic
Computer microphone circuit diagram
The sound card for a PC generally has a microphone input, speaker output and sometimes line inputs and outputs. The mic input is designed for dynamic microphone...
Sound pretty inexpensive bed HI-FI circuit – Circuit Schematic
Sound pretty inexpensive bed HI-FI circuit
The system consists of a CD player, amplifier, speakers, power supply, headphones. Mitsumi CD machine designed for the United States and 97 years in mainland Ch...
Cheap I2C bus control stereo decoder TDA9853H – Circuit Schematic
Cheap I2C bus control stereo decoder TDA9853H
Cheap I2c shown as a bus control stereo decoder TDA9853H. Used for a digital mediation function FM radio in stereo decoding circuit after stereo encoding baseba...
BA313 ALC circuit diagram of a sound recording – Circuit Schematic
BA313 ALC circuit diagram of a sound recording
as the picture shows. BA313 is a built-in automatic level control circuit (ALC) of audio recording preamplifier circuit, commonly used in the cassette tape reco...