ZL38012LDF1

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Audio Special Purpose – ZL38012LDF1 Application Field and Working Principle

The ZL38012LDF1 is an audio special purpose integrated circuit (IC) designed and manufactured by ZiLog Corporation. This chip is widely used in consumer audio applications such as in audio amplifiers. This versatile IC includes the integrated components necessary to produce an adjustable AC coupled low-threshold, zero-biased audio amplifier resulting in a high-quality sound output with minimal distortion.

The ZL38012LDF1 has a two-voltage-level input and produces a maximum voltage gain of approximately 20dB. It is capable of amplifying both high and low-level signals and has low noise, high fidelity, and fast settling capability. By using a low-threshold input and low output impedance, this IC is able to maintain maximum gain and low distortion during the entire AC coupled amplification process.

pin Configuration

This IC consists of nine pins. The pin numbers, associated functions, and the voltage levels are as follows:

• Pin 1: Ground (0 V)
• Pin 2: Input 0 (+5 V)
• Pin 3: Input 1 (+5 V)
• Pin 4: Output B (-5 V)
• Pin 5: Output A (+5 V)
• Pin 6: Ground (0 V)
• Pin 7: Adjust (0 V)
• Pin 8: Output B (+5 V)
• Pin 9: Output A (+5 V)

Working Principle

This integrated audio IC is designed as a low-threshold amplifier, meaning that it provides a dual-level input and produces an output which is adjustable. It is suitable for use in different audio applications like radio, loudspeakers, and automotive audio systems. This IC works by amplifying low and high-level signals and produces a maximum voltage gain of around 20dB at low threshold.

The ZL38012LDF1 features low noise and high fidelity, which minimizes the noise level during audio amplification. It also has a fast settling capability which means that the output settles quickly to its target value. By using low-threshold input and low output impedance, maximum gain and minimum distortion is maintained even in AC coupled amplification process.

Applications

The ZL38012LDF1 has a wide range of applications in consumer audio applications. It is suitable for use in the following situations:

• Audio amplifier
• Radio systems
• Loudspeaker systems
• Automotive audio systems

The ZL38012LDF1 integrated audio IC is an ideal solution for audio power amplification in consumer audio applications. Its low-threshold input and adjustable output means that it can be used for both high and low-level signals to produce a high-quality sound output with relatively low distortion.

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