DESCRIPTION. The TDAA is a new technology class AB quad channels Audio Power Amplifier in Multiwatt15 package designed for car radio applications . Integrated Circuit Audio Power Amplifier W for Car Radio Car Stereo. Integrated Circuit Audio Power Amplifier 12W for Car Radio or Car Stereo. Integrated Circuit Power Amplifier for Car Stereo Radio 12W/Ch or 24W BTL. TDAA datasheet, TDAA pdf, TDAA data sheet, datasheet, data sheet, pdf, SGS Thomson Microelectronics, 4 x 6W POWER AMPLIFIER FOR CAR.

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    Tda7372a Pdf

    TDAA STMicroelectronics Audio Amplifiers 4X6W Power Amplifier datasheet, inventory, & pricing. Part Number: TDAA, ST Microelectronics, File Type: PDF, Document: TDAA PDF 4 x 6W POWER AMPLIFIER FOR CAR RADIO, Datasheet pdf search. ST Microelectronics TDAA datasheet, 4 x 6W POWER AMPLIFIER FOR CAR RADIO, TDAA datasheet, TDAA pdf, TDAA datasheet pdf.

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    If the amplifier were perfect, the two tones and only the two tones would be present at the amplifier output. In the real world, the amplifier would have some harmonic distortion as described above , but careful observation of the output signal using laboratory equipment would reveal that there are a number of new tones present which cannot be accounted for as a result of harmonic distortion.

    These new tones are called beat products or sum and difference frequencies, and are a result of the interaction of the two pure tones within the amplifier. No amplifier is perfect, all have some non linear characteristics. Whenever two signals are applied to a nonlinear system, new signals in addition to the original two are generated.

    For a good amplifier, the new signals are very small in relation to the two original tones.

    All amplifiers are generally rated for Total Harmonic Distortion or THD , usually at full power output over a given frequency band with a particular load. Good values are anything less than 0.

    When an amplifier is measured for THD, a pure tone is applied to the input and the output is measured with special test equipment.

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    The energy of the pure tone is measured, and the energy of the harmonics is measured. Those two values are compared, and a THD rating is calculated. Harmonic distortion although certainly undesirable is one of the more tolerable types of distortion as long as it is kept reasonably low.

    Therefore, for reduction of nonlinear distortions target capacity of the amplifier are artificial limit in comparison with the greatest possible output power.

    As sensitivity of the amplifier understand value of the sine wave input voltage, necessary for obtain of the maximal output power. Frequently, some manufacturers indicate value of a nominal input voltage. A nominal input voltage is a sine wave voltage applied to an input of the amplifier for obtain of nominal output power. It is meant, that the volume regulator of the amplifier should be exposed on the maximal value. Besides linear and nonlinear distortions, any real amplifier generates the additional signals.

    Because of it, on an output of the amplifier there is a signal distinct from zero, even in absence of an entrance signal.

    This signal called as output noise and can be considered as the sum of infinite number of sine wave voltage not only harmonious including in a sound range of frequencies. Sources of internal noise of the amplifier are thermal noise of resistors, and also shot, flickering and thermal noise of active components transistors and diodes.

    Quantitatively a value of noise on an output describe through effective value of noise Uno. As the voltage of noise grows simultaneously with a range of reproduced frequencies, it is necessary to specify frequencies within the limits of which measurements of noise on an output of the amplifier were made.

    If the range of frequencies is not underlined, own noise are measured within the limits of a working range of frequencies of the amplifier. The range of change of an output voltage is determined by a difference between the maximal and minimal instant value of a voltage on an output of the amplifier. This parameter called sometimes a peak output voltage and designates Up-p peak-to-peak. There are many terms used to describe the amplifier power ratings- the maximal sinusoidal power, maximal continuous power, RMS power, music power IHFM , peak power, instantaneous power.

    Depending on indicated term for output power, the same amplifier can have value which one differ in some times. Maximal continuous power- this same as maximal sinusoidal power and occurs under such name in the datasheets of USA and Japan manufacturers. In the simplified form is described as the power, giving on optimal load for the given amplifier , at a sine-wave input signal, when output signal completely limits by an output stage of the amplifier and gains the square shape.

    The peak power and instantaneous power describe extreme critical operation conditions of the amplifier and are specified basically in the advertising purposes. The impedance of load RL has optimal value for each amplifier and determines an maximum output current power giving by the amplifier.

    If the impedance of load is less than a optimal value, an output current accordingly output power of the amplifier can exceed maximum rating and he can be shattered. If the impedance of load is more than optimal value, the output current accordingly output power of the amplifier will be less under identical conditions of operation than is specified for the given amplifier.

    On a single ended amplifiers the load are connected between an amplifier output and ground GND. Bridged amplifiers work basically as follows: a single input signal is applied to the amplifier. Internal to the amp, the input signal is split into two signals. One is identical to the original, and the second is inverted sometimes called phase-flipped.

    The original signal is sent to one channel of the amp, and the inverted signal is applied to the second channel. Amplification of these two signals occurs just like for any other signal. The output results in two channels which are identical except one channel is the inverse of the other. The load is connected between the two amplifier output terminals. In words, one channel pulls one way while the second channel pulls in the opposite direction.

    This allows to deliver at same load and at same power supply in 3 times lot of power than at single ended amplifiers.

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