TS489IST Integrated Circuits (ICs)

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Linear amplifiers are devices designed to amplify electrical signals with low distortion and high linearity. An audio linear amplifier is a device designed to amplify audio signals with low distortion, high linearity, and low noise. One type of audio linear amplifier is the TS489IST, which is a low-cost, low-distortion, low-noise device. This article will discuss the application field and working principle of the TS489IST.

The TS489IST audio linear amplifier is primarily used as a pre-amplifier or input stage in audio applications such as hi-fi amplifiers, PA systems, mixers and other professional audio equipment. It is also used as a power amplifier in low-cost audio systems. The TS489IST has a wide range of features and can be used in a variety of applications.

The main features of the TS489IST include a low-noise operating amplifier design, low-distortion (~ 0.07% THD + N), low-noise (0.13 dB A-weighted) output, low-power consumption (3.5 W maximum), low-profile surface mount package (12 x 10 mm/6 pins), and a high common-mode rejection ratio (80 dB). In addition, the device also has a wide supply voltage range (2.9 V to 5.5 V).

The working principle of the TS489IST audio linear amplifier is based on the classical differential amplifier design. A differential amplifier is a type of amplifier that uses the difference between two input signals (I1 and I2) to produce an output signal. The differential amplifier is designed to reduce the common mode noise and minimize the effects of inter-modulation distortion. The TS489IST uses two input signals, I1 and I2, and produces an output signal (Vout) proportional to the difference. The gain of the amplifier is determined by the ratio of (I1 - I2) to the output voltage (Vout).

The TS489IST also includes a low noise, high fidie commonly used in audio applications. This circuit is designed to reduce noise and improve signal fidelity by using feedback to reduce the gain of the amplifier, while still maintaining its linearity. This feature of the TS489IST helps to improve the signal quality and reduce the noise floor, which helps to achieve a better signal-to-noise ratio. Additionally, the low power consumption design of the device helps to extend battery life in portable audio devices.

In summary, the TS489IST audio linear amplifier is a low-cost, low-distortion, and low-noise device that is widely used as a pre-amplifier or power amplifier in audio applications. The device utilizes a differential amplifier design to reduce common-mode noise and minimize inter-modulation distortion. Additionally, the device incorporates a low-noise, high fidelity feedback topology designed to reduce noise and improve signal fidelity. The low-profile surface mount package, low power consumption, and wide supply voltage range make the TS489IST an ideal choice for a wide range of audio applications.

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