مدار مجتمع (آی سی) آی‌سی صوتی ویژه

Product Attributes

Introduction

BD37524FS is a sound processor with built-in 3-band equalizer for car audio. Other features are stereo 5ch input selector, input-gain control, main volume, loudness, 5ch fader volume, LPF for subwoofer, level meter. It is equipped with an “Advanced switch circuit”, which is an original ROHM technology that reduces various switching noise (ex. No-signal, low frequency likes 20Hz & large signal inputs). The “Advanced switch” makes control of microcomputer easier and can be used for designing high quality car audio systems.

Features

• Reduced switching noise of input gain control, mute, main volume, fader volume, bass, treble, and loudness by using advanced switch circuit
• Built-in differential input selector and 4 single-ended input selectors
• Built-in ground isolation amplifier inputs, which is ideal for external stereo input.
• Built-in input gain controller reduces switching noise for volume of a portable audio input.
• Lesser number of external components due to built-in 3-band equalizer filter, LPF for subwoofer, loudness filter. This makes it possible to control the Q, Gv, fo of 3-band equalizer, fc of LPF, fo, and Gv of loudness through I²C BUS.
• A gain adjustment quantity of ±20dB with 1 dB step gain adjustment is possible for bass, middle, and treble.
• Built-in subwoofer output terminals.
• Energy-saving design resulting in low current consumption is achieved by utilizing the Bi-CMOS process. It has the advantage in quality over scaling down the power heat control of the internal regulators.
• Input pins and output pins are organized and separately laid out to keep the signal flow in one direction which consequently, simplify pattern layout of the set board and decrease the board dimensions.
• It is possible to be controlled by a 3.3V / 5V I²C BUS

Applications

• It is optimal for car audio systems.
• It is also suitable for other audio equipment such as mini Compo, micro Compo, TV etc