The NJU8754V is a stereo headphone amplifier with volume control, developed by New Japan Radio (NJR). It is designed for portable audio devices, offering high-quality audio amplification with low power consumption. This amplifier integrates a volume control function, reducing the number of external components required for audio systems.

Applications

• Portable audio players (MP3, CD players)
• Mobile phones
• Tablet computers
• Laptop computers
• Gaming consoles

Features

• Stereo headphone amplifier
• Integrated volume control
• Low power consumption
• Wide operating voltage range
• Short-circuit protection
• Thermal shutdown protection
• Small package size

Benefits

• High-quality audio amplification: Delivers clear and crisp audio to headphones.
• Reduced component count: Integrated volume control simplifies design and reduces BOM cost.
• Longer battery life: Low power consumption extends the operating time of portable devices.
• Protection features: Short-circuit and thermal shutdown protections ensure device reliability.
• Compact design: Small package size allows for integration into space-constrained applications.

The NJU8754V typically operates from a single power supply voltage, making it easy to integrate into battery-powered devices. The gain of the amplifier can be adjusted using external resistors to match the impedance of different headphones. The integrated volume control is typically implemented using an analog control voltage or a digital signal. Furthermore, this device offers excellent channel separation, minimizing crosstalk between the left and right audio channels.

Technical Specifications (Typical):

• Supply Voltage: 2.7V to 5.5V
• Output Power: 20mW per channel (into 32Ω load)
• THD+N: 0.1% (at 1kHz)
• SNR: 90dB