AmplifierCircuits

Overview: The LA4628 is a 2-channel general-purpose BTL audio  power amplifier provided in a miniature package. It was  designed for the best possible audio quality and features  an extended low band roll-off frequency provided by a  newly-developed NF circuit that does not require an  external capacitor. Furthermore, crosstalk, which can  cause muddiness in the audio output, has been  significantly reduced by both circuit and wiring pattern  improvements. Thus this amplifier can provide powerful  lows an clear highs.  Note that this device is pin compatible with the 13.5 W ×  2-channel LA4625, and allows end products differentiated  by their power rating to share the same printed circuit  board. Features: Total output: 20 W + 20 W (at VCC = 13.5 V, RL = 4 Ω, THD = 10%) High-fidelity design (fL < 10 Hz, fH = 130 kHz) Extremely low impulse noise levels An arbitrary amplifier startup time can be set up wi...