Showing posts with label Car Stereos. Show all posts
Showing posts with label Car Stereos. Show all posts

4/27/2015

TDA8560Q Audio amplifier 2x40W

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TDA8560Q general description:

Unfortunately, some of the proposed scheme in the network and even a scheme recommended by the developer (Philips), fail to achieve the desired result. As an example of how not to suggest that you include the TDA8560 material published on Online Soldering: Car Amplifier 2x40 Watt (I should note that everything except the input circuits and the number of points on diet, still deserves attention). the initial inclusion of IMS (at power up, the load is connected and there is no input signal) can throw you into a state of perplexity / mild shock (it depends on the degree of hope is for your TDA). Chip is unstable, there are noises when the input signal is amplified last weakly and passed with distortions. IC bypass surgery fixed resistor at the input, the other measures in consultation with the source device does not help. Why and what to do? Really caught Palen chip and will have to buy a new one? Not so fast! The fact that Philips did not include measures to prevent the self-excitation of the IC, but I think they know about it, but do not tell anyone (not good, gentlemen!) Rid chip excitement can (and should) in a way that is not described here. This is so far, my little secret. Usually TDA8560 include approximately recommend the following scheme: TDA8560Q Audio amplifier 2x40W

TDA8560Q Features:

  • Supply voltage: 6 - 18; typical 14.4 V.
  • The peak output current: 7.5 A.
  • The current in idle mode: 120 mA.
  • Long-term power output, with
  • RL = 4 ohms, THD = 10%, F = 1 kHz, 25 W,
  • RL = 2 ohms, THD = 10%, F = 1kHz: 40W.
  • Voltage gain, Au: 40 dB.
  • Input Impedance: 30 ohms.
  • Input Sensitivity: 100 mV.
  • Frequency response: 20 - 20000 Hz.
  • Requires very few external components
  • High output power
  • Low output offset voltage
  • Fixed gain
  • Diagnostic facility (distortion, short-circuit and temperature detection)
  • Good ripple rejection
  • Mode select switch (operating, mute and standby)
  • Load dump protection
  • Short-circuit safe to ground, to VP and across the load
  • Low power dissipation in any short-circuit condition
  • Thermally protected
  • Reverse polarity safe
  • Electrostatic discharge protection
  • No switch-on/switch-off plop
  • Flexible leads
  • Low thermal resistance.

TDA8560Q amplifier diagram, circuit:

TDA8560Q amplifier diagram, circuit
TDA8560Q amplifier diagram, circuit

TDA8560Q layout:

TDA8560Q amplifier Layout
TDA8560Q amplifier Layout

TDA8560Q amplifier pcb
TDA8560Q amplifier pcb

Datasheet for TDA8560Q: Download

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2/11/2015

TDA7375 Audio Amplifier 2x35W

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TDA7375 general description:

TDA7375 Audio Amplifier 2x35W
Circuit of quadruple audio amplifier using integrated circuit TDA7235 for systems surround. Circuit of quadruple amplifier for systems surround using the ci tda7375, for potency of 7 watts for channel in the version amplifying quad or 15 watts in the dual version (stereo). could arrive to 35 watts in the version.TDA7235 is a circuit integrated amplifier quadruple audio amplifier class AB capable to work in double bridge or simple quadruple amplifiers, circuit integrated with protection system of short, it requests the minimum of external components, available in multiwat 15H (TDA7375H) and multiwat 15V (TDA7375V). Although the first conception went to automotives pplications , to give him/it in a great variety of applications of low potency. That integrated circuit is ideal in the situation in that is wanted a reasonable potency and with a Power tension relatively low for your operation. That circuit drawn below it uses the basic configuration of quadruple amplifier, but using a configuration in bridge, it can be obtained about 4 times the maximum potency. In that configuration of quadruple amplifier it can be used as amplifier end of systems surround, when 7 watts for channel are already a good potency, using the minimum of components.Operation of the circuit of the audio amplifier with tda7375 The capacitor C8 uncouples the internal tension divisor. The capacitors C5 and C6 are the filter for Power supply. The capacitors of 2200µF / 25V are the exit capacitors. Vs is the Power supply that can be a car battery or a supply of 14 volts. Power supply for the circuit It can be with a transformer 12V/30VA, a rectifier bridge and a capacitor electrolytic of 4700µF or (larger). The maximum consumption of current with loads of 4Ohms is 2.1 A. You can use loads of 2 ohms, but he/she also remembers to increase the size of the of heat-sink, because the circuit integrated in Multiwat package it will heat up a little more. Suggestion of printed circuit board side of the copperSuggested PCB for mounting the amplifier tda7375, component side Information about mounting circuit audio amplifier. When assembling the circuit remember that this quad amplifier channels features two four inverted, then it should connect the speakers in reverse polarity at such times, attention to the polarity of electrolytic capacitors that should be of good quality. Before welding the tda7375 remember to solder the jumper, which will be underneath the integrated. TDA7375 Audio Amplifier 2x35W

TDA7375 features:



  • HIGH OUTPUT POWER CAPABILITY:
– 2 x 40W max./4
– 2 x 35W/4 EIAJ
– 2 x 35W/4 EIAJ
– 2 x 25W/4 @14.4V, 1KHz, 10%
– 4 x 7W/4 @14.4V,1KHz, 10%
– 4 x 12W/2 @14.4V, 1KHz, 10%

  • MINIMUM EXTERNAL COMPONENTS 
COUNT:
– NO BOOTSTRAP CAPACITORS
– NO BOUCHEROT CELLS
– INTERNALLY FIXED GAIN (26dB BTL)

  • ST-BY FUNCTION (CMOS COMPATIBLE)
  • NO AUDIBLE POP DURING ST-BY OPERATIONS

  • DIAGNOSTICS FACILITY FOR:
– CLIPPING
– OUT TO GND SHORT
– OUT TO VS SHORT
– SOFT SHORT AT TURN-ON
– THERMAL SHUTDOWN PROXIMITY


TDA7375 circuit diagram:

Double Bridge TDA7375
Double Bridge TDA7375
Quad SterioTDA7375
Quad SterioTDA7375
SterioBridge TDA7375
SterioBridge TDA7375

TDA7375 layout:

pcb layout
pcb layout

pcb layout
pcb layout


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12/02/2014

20 Watts Car Stereo Amplifier

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The main features of this powerful MULTIWATT Package (a trademark of SGS-THOMSON Microelectronics), a power amplifier IC chips designed specifically for car radio application, are the high current capability (3. 5A) and the capability to drive a very low impedance (down to 1. 6R). Here is the schematic diagram of the standard circuit as shown in it visit page. via next.gr
20 Watts Car Stereo Amplifier
20 Watts Car Stereo Amplifier

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10/20/2014

47 Watt BTL Audio Power Amplifier 4-channel

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General Description:
The TA8273H is 4 ch BTL audio power amplifier for car audio  application.  This IC can generate more high power: POUTMAX = 47 W as it  is included the pure complementary PNP and NPN transistor  output stage.  It is designed low distortion ratio for 4 ch BTL audio power  amplifier, built-in stand-by function, muting function, and  diagnosis circuit which can detect output to VCC/GND short,  output offset voltage and over voltage input mode. Additionally, the AUX amplifier and various kind of protector  for car audio use are built-in. 
Circuit Diagram:
47 Watt BTL Audio Power Amplifier 4-channel
Datasheet for TDA8273: Download
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40 W BTL x 4CH Audio Power IC

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General Description:
The TA8260AH is 4 ch BTL audio power amplifier for car audio  application.  This IC can generate more high power: POUT MAX = 40 W as it is  included the pure complementary PNP and NPN transistor  output stage.  It is designed low distortion ratio for 4 ch BTL audio power  amplifier, built-in Stand-by Function, Muting Function, Clip  detector, and diagnosis circuit.  Additionally, the AUX. amplifier is built-in, it can make the beep  signal etc. output to 2 channels (OUT1 and 4).  It contains various kind of protectors for car audio use. 
Circuit Diagram:
 40 W BTL x 4CH Audio Power IC 
Datasheet for TDA8260AH: Download
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9/30/2014

2 x 20 W BTL amplifiers

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General Description:
The IC incorporates the following functions:
4 × 6 W SE amplifies without SE capacitor, because of the availability of 2 half supply voltage power buffers. 2. 2 × 20 W BTL amplifiers. Automatic switching between 2 and 4 speaker operation. The mode of operation is determined during start-up.
This amplifier is protected for all general short-circuit conditions to battery or ground, overvoltage, 45 V load dump and short-circuits on the speaker outputs. The IC is contained in a 20-pin power HSOP package, but is also available in a 17-pin SIL power package. When packaged in the 20-pin HSOP package additional functions are available:
DDD level selection between 2 and 10% Overrule pin for changing mode of operation (from SE to BTL or from BTL to SE).
Circuit Diagram:
2 x 20 W BTL amplifiers
2 x 20 W BTL amplifiers
Datasheet for TDA8586: Download
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2 x 80 W class-D audio amplifier

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General Description:     
The TDA8927 is the switching power stage of a two-chip set for a high efficiency class-D audio power amplifier system. The system is split into two chips: 
• TDA8927J/ST/TH; a digital power stage in a DBS17P, RDBS17P or HSOP24 power package
• TDA8929T; the analog controller chip in a SO24 package.
     With this chip set a compact 2 × 80 W audio amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is required, or depending on supply voltage and load, a very small one. The system operates over a wide supply voltage range from ±15 up to ±30 V and consumes a very low quiescent current.
Circuit Diagram:
Circuit diagram for 2 x 80 W class-D audio amplifier
Circuit diagram for 2 x 80 W class-D audio amplifier


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