TEA2025B/D is a monolithic integrated circuit designed for use as a dual or bridge power audio amplifier. It features a wide supply voltage range, high channel separation, and low switch on/off noise. It is suitable for portable radio, cassette players, and other devices.
The document describes the TEA2025B/D, a monolithic integrated circuit designed as a dual or bridge power audio amplifier for portable radio cassette players. It supports supply voltages from 3V to 15V and offers features such as high channel separation, very low switch on/off noise, adjustable gain up to 45dB, soft clipping, and thermal protection.
| Supply Voltage Range | 3V to 15V |
|---|---|
| Output Power (Stereo, 9V) | 2.3W per channel |
| Output Power (Bridge, 6V) | 2.8W per channel |
| Max Gain (Stereo) | 45dB |
| Quiescent Current | 35 mA typical |
The device supports dual or bridge connection modes.
No, the input capacitor is PNP type allowing source to be referenced to ground, so no input coupling capacitor is required.
The suggested value for the bootstrap capacitors is 100 µF to avoid reduction of output signal at low frequencies.