TS487IDT

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An audio amplifier is an electronic amplifier that amplifies low-power electronic audio signals such as the signal from radio receiver or electric guitar pickup to a level suitable for driving loudspeakers or headphones. This TS487IDT application field and working principle include one particular class of audio amplifiers: linear amplifiers. This is a term often used for power amplifiers that provides an essentially flat (or linear) transfer function over the audio frequency range (20 Hz - 20 kHz) as opposed to non-linear amplifiers, such as class D or class T amplifiers.

TS487IDT is a low power, low distortion, low noise, high PSRR linear amplifier that operates from a single supply. The device is unity gain stable and offers a low input referred noise voltage of 40nV/√(Hz). The device typically provides –130dBr PSRR at 1kHz and low distortion of 0.03% THD+N at 1kHz and 0.02% THD+N at 10 kHz. It is an ideal solution for powering headphones and low power applications.

The TS487IDT is also designed to reduce power consumption and increase audio performance. When an analog signal is applied, the device amplifies the input to a precise level and the output is independent of the current drawn. This allows for low power and allows for a precise and consistent audio performance. The power efficiency is increased through the use of a unique design of the output stage, which includes a low-noise linear current-to-voltage converter and low-power power supply management.

The TS487IDT can be configured in either single-ended or differential input configuration. In single-ended configuration, the amplifier utilizes a single-ended external resistor (R1) and can be used for a variety of applications ranging from portable audio to low-light level audio. In differential configuration, the amplifier requires two external resistors (R1 and R2) to bias the output differential stage. The differential output configuration offers precision audio with lower Distortion and Total Harmonic Distortion + Noise (THD+N).

The linearity and low-noise performance of the TS487IDT make it an excellent choice for audio applications. The low distortion and high power supply rejection ratio ensure excellent audio performance even in high ambient light conditions. The device is also temperature stable, meaning that the output audio characteristics remain consistent even as the ambient temperature changes. This enables the amplifier to provide reliable audio performance even in extreme temperatures.

Overall, the TS487IDT is an ideal amplifier for audio applications that requires low distortion, low noise, and high power supply rejection ratio. The single-ended and differential input configurations allow it to be used in a variety of applications and its low power consumption makes it an attractive choice for portable and automotive audio systems. Additionally, its temperature stability ensures consistent audio performance even in harsh environmental conditions.

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