The TDA8574 is a two channel class-H high-output voltage line driver for use in car audio applications. It features output voltage swing larger than supply voltage, high supply voltage ripple rejection, low distortion, low noise, and ESD protection on all pins.
The TDA8574 is an integrated circuit designed to improve the signal-to-noise ratio in car audio systems where power amplifiers are driven by long cables. It functions as a non-inverting amplifier with a gain of 8 dB and utilizes a Class-H voltage lifting principle to achieve an output voltage swing larger than the supply voltage.
| Supply voltage (Vcc) | 6 to 12 V |
|---|---|
| Voltage gain (Gy) | 8 dB |
| Maximal output voltage (RMS) | 5.2 V |
| Supply current (Icc) | 8 to 13 mA |
| Total harmonic distortion (THD+N) | 0.003 % |
| Supply voltage ripple rejection (SVRR) | 65 dB |
| Operating ambient temperature | -40 to +85 °C |
The typical supply voltage (Vcc) is 9 V.
The output impedance is typically 10 Ohms.
It is available in a DIP16 plastic dual in-line package and a SO16 plastic small outline package.