LA4570 Power Amplifier IC
The LA4570 Power Amplifier IC, is a monolithic integrated circuit designed for high-quality stereo audio amplification in battery-powered portable devices. This all-in-one chip integrates dual preamplifiers and power amplifiers, serving as an efficient solution for compact audio systems like portable radios, Walkman’s, and early portable players. It operates within a supply voltage range of 1.8V to 4.5V, with a typical voltage of 3V, optimizing for low-power consumption to extend battery life while providing clear audio performance.
Features:
- Dual preamplifiers with 41dB gain at 1kHz for signal amplification.
- Stereo power amplifiers delivering up to 20mW per channel at 3V.
- Low-voltage operation from 1.8V to 4.5V for battery efficiency.
- Built-in ripple filter to minimize power supply noise.
Specifications:
| Parameter | Value |
|---|---|
| Supply Voltage Range | 1.8Vto4.5V |
| Typical Supply Voltage | 3V |
| Output Power (perchannel) | 20mW(at3V,32Ω,10%THD) |
| Gain(Preamplifier) | 41dB(at1kHz) |
| Quiescent Current | 9mA |
| Headphone Impedance(Recommended) | 32Ω |
| Package Type | DIP-16 |
Applications:
- Home audio systems.
- Stereo amplifiers.
- TV audio and soundbars.
- Compact and portable audio systems.
- Consumer electronics with audio amplification needs.
Package Include:
1x LA4570 Power Amplifier IC.