Showing posts with label stereo. Show all posts
Showing posts with label stereo. Show all posts
Tuesday, September 16, 2014
Simple Low Power Car Stereo Amplifier
A simple low power car stereo amplifier circuit based on TDA 2003 is shown here. The circuit uses cheap, readily available components and it is very easy to construct. TDA2003 is an integrated car radio amplifier from ST Micro electronics that has a lot of good features like short circuit protection for all pins, thermal over range low harmonic distortion, low cross over distortion etc.
Circuit diagram :
A simple low power car stereo amplifier Circuit Diagram
In the circuit given here each TDA2003 is wired as a mono amplifier operating from a 12V supply. Resistors R2 and R3 forms a feedback network that sets the amplifiers gain. C7 is the input DC de-coupling capacitor and C5 couples the speaker to the amplifiers output. C4 is used for improving the ripple rejection while C1 and C2 are employed for power supply filtering. C3 and R1 are used for setting the upper frequency cut-off. Network comprising of C6 and R4 is used for frequency stabilization and to prevent oscillation.
Notes.
- Assemble the circuit on a good quality PCB.
- Heat sinks are necessary for both ICs.
- The circuit can be operated from 12V DC.
- S1 is the ON/OFF switch
Thursday, September 4, 2014
Stereo Circuit Balance Meter
Description
When L R signals are equal, no output is present from Ul, and pin 6 is at a steady 4.5 V. Unbalanced audio causes the LEDs to vary in brightness,which causes a difference that corresponds to unbalance between channels.Circuit Diagram
Tuesday, September 2, 2014
TDA8566 2x40 W 2 Ω stereo BTL car radio power amplifier
Description of TDA8566:
The TDA8566 is an integrated class-B output amplifier which is available in several packages. TDA8566TH is contained in a 20-lead small outline plastic package. The TDA8566TH1 is a 24-lead small outline plastic package which is pin compatible with the 2C-bus controlled amplifier TDA1566TH for one board layout. TDA8566Q is a 17-pin DIL-bent-SIL package. The device contains 2 amplifiers in a Bridge-Tied Load (BTL) configuration. The output power is 2 × 25 W in a 4 Ω load or 2 × 40 W in a 2 Ω load. It has a differential input stage and 2 diagnostic outputs. The device is primarily developed for car radio applications.
Features TDA8566:
- Differential inputs
- Very high Common Mode Rejection Ratio (CMRR)
- High common mode input signal handling
- Requires very few external components
- High output power
- 4 Ω and 2 Ω load driving capability
- Low offset voltage at output
- Fixed gain
- Diagnostic facility (distortion, short-circuit and temperature pre-warning)
- Good ripple rejection
- Mode select switch (operating, mute and standby)
- Load dump protection
- Short-circuit proof to ground, to VP and across the load
- Low power dissipation in any short-circuit condition
- Thermally protected
- Reverse polarity safe
- Protected against electrostatic discharge
- No switch-on/switch-off plops
- Low thermal resistance
- TDA8566TH1 is pin compatible with TDA1566TH
Applications:
- Home-sound sets
- Multimedia systems
- Car audio (boosters)
Circuit diagram TDA8566:
 |
| TDA8566 2 × 40 W/2 Ω stereo BTL car radio power amplifier with differential inputs and diagnostic outputs |
Datasheet for TDA8566: Download
Where you can buy: Aliexpress
Where you can buy: DealExtreme
Tuesday, August 26, 2014
BH1417 Stereo FM Transmitter
The circuit shown here is of a quality Stereo FM transmitter that might transmit high quality signals up to a variety of 70 feet. The circuit is Depending on BH1417 PLL stereo transmitter IC in one Rhom semiconductors. The IC has separate audio processing sections towards the left and right channels, pre emphasis circuit for improving signal to noise ratio, crystal control circuitry for accurate frequency locking, multiplex circuit for and make sum ( left plus right) and difference ( left minus right).
Another important feature of this IC is that the transmission frequency seem like either set utilizing a 4 channel DIP switch. The IC seem like either powered in one anything between 4 to 6V DC and comes with other an output power around 20mW. At full output power the circuit consumes only 20mA and has a channel separation of 40dB. There {seem to be|appear to be|are} 14 possible preset transmission frequencies, starting in one 88.7MHz and incrementing in steps of 0.2MHz Which is going to be selected utilizing the DIP switch. The PLL circuitry of those IC is so precise that Theres almost no frequency drift.
Friday, August 22, 2014
3 Watt Stereo Audio Amplifier
This very simple schema is ideal for small power audio applications like portable CD players or radio sets.The schema is designed strictly as per the datasheet and found to be working great.
The MAX9710 a stereo audio power amplifier IC capable of delivering 3Watts of out put to 4 Ohm loads. MAX9710 can be operated from a single 4.5V to 5.5V power supply , makes it ideal for hand held applications.The IC also features thermal overload protection.
Notes:
- Use a 5 V DC power supply for powering the schema.
- If you want to use a battery ,then use a 6V battery with a IN 4007 diode series to the positive terminal of it.The diode will drop 0.7 V and the IC will get the rated ~5V.This is just a safety recommendation .
- Assemble the schema on a good quality PCB or common board.
source: diagramtoday.com
Saturday, August 16, 2014
22W BRIDGE STEREO AUDIO AMPLIFIER WITH CLIPPING DETECTOR TDA7360
General Description:
TDA7360 is a new technology class AB Audio Power Amplifier in the Multiwatt package
designed for car radio applications.
TDA7360 is a new technology class AB Audio Power Amplifier in the Multiwatt package
designed for car radio applications.
Circuit Diagram
 |
| TDA7360 bridge |
 |
| TDA7360 stereo |
Friday, August 15, 2014
STK4241V 120W stereo amplifier
This Home Stereo Amp is equiped with STK4241V wich is a thick film hybrid IC, AF Power Amplifier (Split Power Supply) (120W+120W min, THD = 0.08%). STK4241V has some features like:
• Muting circuit built-in to isolate all types of shock noise
• Current mirror circuit for low 0.08% total harmonic distortion
For this 2x120W home stereo power audio amplifier we use a single monochip STK4241V to obtain up to 120W for each channel.
Amplifier home stereo components:
R6, R22 – 560 ohm / 0.125W
R1, R24 – 1K / 0.125W
R9, R10 – 1K / 0.5W
R7, R18 – 4.7K / 0.25W
R8, R19 – 4.7K / 0.5K
R2, R5, R21, R23 – 56K / 0.125W
C7, C17 – 3pF ceramic
C2, C20 – 470pF ceramic 50V
C6, C16 – 1nF 100V
C11, C12 – 100nF 100V
C1, C19 – 2.2uF 50V
C5, C15 – 1uF 63V
C4, C10, C13 – 10uF 63V
C9, C14 – 47uF 63V
C8, C18 – 100uF 16V
source [link]
• Muting circuit built-in to isolate all types of shock noise
• Current mirror circuit for low 0.08% total harmonic distortion
For this 2x120W home stereo power audio amplifier we use a single monochip STK4241V to obtain up to 120W for each channel.
R6, R22 – 560 ohm / 0.125W
R1, R24 – 1K / 0.125W
R9, R10 – 1K / 0.5W
R7, R18 – 4.7K / 0.25W
R8, R19 – 4.7K / 0.5K
R2, R5, R21, R23 – 56K / 0.125W
C7, C17 – 3pF ceramic
C2, C20 – 470pF ceramic 50V
C6, C16 – 1nF 100V
C11, C12 – 100nF 100V
C1, C19 – 2.2uF 50V
C5, C15 – 1uF 63V
C4, C10, C13 – 10uF 63V
C9, C14 – 47uF 63V
C8, C18 – 100uF 16V
source [link]
Sunday, August 10, 2014
Indicator Balance Stereo Sound Wiring diagram Schematic
This is an Indicator Balance Stereo Sound Circuit Diagram, that is, it causes the two channels are to the same output level. This schema eliminates the problems that may occur during recording and playback sound. It is connected to the output terminal of the speakers in the right channel and the left channel of the amplifier. To make the adjustment has to be zero in the middle of the window, however, if the signal level on the left channel is higher than that measured dO right channel will divert to the left (or right if the opposite occurs) .
Indicator Balance Stereo Sound Circuit Diagram
Subscribe to:
Posts (Atom)
