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Packaging:	Tape & Reel (TR)
Part Status:	Last Time Buy
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LX1704CLQ-TR Application Field and Working Principle

Introduction

The LX1704CLQ-TR is a high power audio amplifier integrated circuit (IC) produced by Linear Technology. It is primarily used to amplify audio signals, with the ability to drive up to 35 Watts of power into 4-ohm loads with no more than 10% total harmonic distortion (THD). It features a wide range of features, making it a great choice for powering loudspeakers and other audio applications.

Features

The LX1704CLQ-TR integrates a power SIP (single-in-line package) package and makes it very efficient in audio applications. It provides a clean and powerful 32 dB gain, with an input noise voltage range of -60 dBV (@ 1 kHz). It has unsurpassed low distortion specifications and a respectable power bandwidth. It is capable of up to 35 Watts output power into 4-ohm loads at 10% THD. It is also designed for use in automotive audio applications. It has been designed to minimize noise and transistors on the die. The quiescent current is optimized to reduce current consumption, which can result in signifcant energy savings for automotive applications. The LX1704CLQ-TR also features temperature-compensated short-circuit protection, which helps to protect the amplifier in a high-temperature environment. This protection circuit will turn off the output if there is a short circuit and automatically turn it back on once the short is cleared.

Applications

The LX1704CLQ-TR is well suited for audio amplifiers in automotive applications, as well as other audio applications. It is able to handle up to 35W output power into 4-ohm loads, making it a great choice for powering loudspeakers, headphones, and other audio applications. It is also capable of driving up to 15W of power into 8-ohm loads. The LX1704CLQ-TR can also be used for instrumentation amplifiers, such as for music keyboards, organ consoles, and other instruments. It can also be used in audio systems for high-end home theater and 2-channel audio applications.

Working Principle

The LX1704CLQ-TR works by taking an input signal and passing it through multiple stages of differential amplifiers. These amplifiers are capable of increasing the electrical power output of the signal.The first stage of the amplifier is a Single-Ended Input Amplifier, which provides gain and implements notch or low-pass filtering. The second stage is the Gain Control Amplifier which provides Gain Reduction to reduce distortion at high gains.The third stage is the Output Buffer Amplifier, which provides high-current output with low distortion and low output impedance. Finally, the last stage is the Output Filter, which limits the bandwidth of the amplifier and works to reduce ringing and oscillation from the output.

Conclusion

The LX1704CLQ-TR is an excellent choice for audio amplifiers in automotive applications, as well as other audio applications. It is able to handle up to 35W output power into 4-ohm loads and can also be used for instrumentation amplifiers. It integrates a power SIP package and makes it very efficient in audio applications, while providing a clean and powerful 32 dB gain, low distortion specifications and a respectable power bandwidth. It is also designed with temperature-compensated short-circuit protection, enabling it to be used in high-temperature environments.

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