12W AF Power Amplifier for Car Radio, Car Stereo

Features

• High gain of 51dB typ. and high power output of 12W typ.

• Possible to delete output and bootstrap capacitors, this encourages cost and space reductions due to external parts reduction.

• Reduced external components (8 pieces recommended, 6 pieces minimum).

• Almost no pop noises heard during power on or off operation.

• Soft tonal quality in saturated power output.

• Low distortion over low to high ranges of the audio frequencies.

• Low residual noises (Rg=0).

• Good operation conditions because of SIP (single ended pins) package having been employed for the LA4460N.

• All pin terminal layouts of the LA4461N are reversed for easy stereo PC board pattern arrengement.

• Two ground terminals for pre-amplifier and power amplifier are provided for easy PC board pattern arrangement and for stabilizing distortion chracteristics depending on signal source impedance.

• Voltage gain is fixed at 51dB, however, lowering the gain is possible by adding a resistor.

• IC is not damaged, if it is connected reversely.

• Audio muting functions (AC mute & DC mute) are equipped.

• Several protection circuits are installed, including :

  a. Thermal protection circuit.

  b. Overvoltage & surge voltage protection circuit.

  c. Load short-circuit current limiting protection circuit.

  d. Output pins DC short-circuit protection circuit. (grounding protection between OUT & GND, and speaker protection provided.)