ROHM Semiconductor USA, LLC Datasheets for Audio Amplifiers and Preamplifiers

Audio amplifiers and audio preamplifiers are used to increase the amplitude of sound signals.  Preamplifiers or preamps are designed to amplify low-level signal from a high-impedance device such as a microphone or instrument pick-up. After pre-amplification, the signal is sent to a power amplifier or amp, which provides the higher current necessary to drive the speakers.
Audio Amplifiers and Preamplifiers: Learn more

Product Name Notes
5W + 5W Stereo Speaker Amplifiers -- BA5406 BA5406 is a dual OTL monolithic power IC with two built-in, high output speaker amplifier circuits. High output of 5W×2 can be produced when VCC=12V and RL=3O, and 2.8W×2 when...
5W + 5W Stereo Speaker Amplifiers -- BA5417 BA5417 is a dual OTL monolithic power IC with two built-in, high output speaker amplifier circuits. High output of 5W×2 can be produced when VCC=12V and RL=3O, and 2.8W×2 when...
Analog Input Monaural Class-D Speaker Amplifier -- BD27400GUL BD27400GUL is a low voltage drive class-D monauralspeaker amplifier that was developed for cellular telephones,mobile audio products and the others. The LC filter of the speaker output is unnecessary and...
9W+9W Analog Input Class D Speaker Amplifier -- BD28412MUV BD28412MUV is a 9W+9W stereo (or 18W monaural) class D amplifier, developed for battery equipped speaker systems such as wireless speakers. This IC is incorporated with a precise oscillator to...
20W+20W Class D Speaker Amplifier for Digital Input -- BD28620MUV BD28620MUV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-power consumption. This IC delivers an output power of 20W+20W. This IC employs state-of-the-art...
17W + 17W Class D Speaker Amplifier for Digital Input -- BD28623MUV BD28623MUV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-power consumption. This IC delivers an output power of 20W + 20W. This IC...
Sound Processor for Car Audio with Built-in High-Voltage Amplifier and 2nd Order Post Filter -- BD37069FV-M BD37069FV-M is a sound processor developed for car audio with built-in selector of six stereo inputs and output interfaced to ADC after adjusting signal level. BD37069FV-M has a 6-channel volume...
Analog Input / BTL Output Class-D Speaker Amplifier -- BD5413EFV BD5413EFV is a 5W + 5W stereo class-D power amplifier specifically developed for low power consumption and low heatgeneration applications like powered speakers. BD5413EFV employs the state-of-the-art BCD (Bipolar, CMOS...
Analog Input / BTL Output Class-D Speaker Amplifier -- BD5423AEFS BD5423AEFS is a 17W + 17W stereo class-D power amplifier IC, developed for space-saving and low heat-generationapplications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and DMOS...
Analog Input / BTL Output Class-D Speaker Amplifier -- BD5423MUV BD5423MUV is a 17W + 17W stereo class-D power amplifier IC, developed for space-saving and low heat-generationapplications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and DMOS...
Analog Input / BTL Output Class-D Speaker Amplifier -- BD5424EFS BD5424EFS is a 20W + 20W stereo class-D power amplifier IC, developed for space-saving and low heat-generationapplications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and DMOS...
Analog Input / BTL Output Class-D Speaker Amplifier -- BD5426EFS BD5426EFS is a 10W + 10W stereo class-D power amplifier IC, developed for space-saving and low heat-generationapplications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and DMOS...
Analog Input / BTL Output Class-D Speaker Amplifier -- BD5426MUV BD5426MUV is a 10W + 10W stereo class-D power amplifier IC, developed for space-saving and low heat-generationapplications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and DMOS...
Class-D Speaker Amplifier for Digital Input -- BD5446EFV BD5446EFV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-powerconsumption, delivers an output power of 20W+20W. This IC employs state-of-the-art Bipolar, CMOS, and...
Class-D Speaker Amplifier for Digital Input -- BD5451EFV BD5451EFV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-powerconsumption, delivers an output power of 15W+15W. This IC employs state-of-the-art Bipolar, CMOS, and...
Class-D Speaker Amplifier for Digital Input -- BD5452AMUV BD5452AMUV is a Class D Speaker Amplifier designedfor Flat-panel TVs in particular for space-saving andlow-power consumption, delivers an output power of15W+15W. This IC employs state-of-the-art Bipolar,CMOS, and DMOS (BCD) process...
Analog Input Monaural Class-D Speaker Amplifier -- BD5460GUL BD5460GUL is a low voltage drive class-D monaural speaker amplifier that was developed for cellular telephones, mobile audio products and the others. The LC filter of the speaker output is...
Analog Input Monaural Class-D Speaker Amplifier -- BD5461GUL BD5461GUL is a low voltage drive class-D monaural speaker amplifier that was developed for cellular telephones, mobile audio products and the others. The LC filter of the speaker output is...
Analog Input Monaural Class-D Speaker Amplifier -- BD5469GUL BD5469GUL is a monaural Class-D speaker amplifier that has integrated ALC function suitable for mobile phones, portable type electronic devices, etc. LC filter at the speaker output is not needed. The IC forms...
Analog Input Stereo Class-D Speaker Amplifiers -- BD5471MUV BD5471MUV is a low voltage drive class-D stereo speaker amplifier that was developed for cellular telephones, mobile audio products and the others. LC filters of speaker outputs are unnecessary, and...
Analog Input Monaural Class-D Speaker Amplifier -- BD5632NUX BD5632NUX is a low voltage drive class-D monaural speaker amplifier that was developed for cellular telephones, mobile audio products and the others. The LC filter of the speaker output is...
Analog Input Monaural Class-D Speaker Amplifier -- BD5634NUX BD5634NUX is a low voltage drive class-D monaural speaker amplifier that was developed for cellular telephones, mobile audio products and the others. The LC filter of the speaker output is...
Analog Input Monaural Class-D Speaker Amplifier -- BD5638NUX BD5638NUX is a low voltage drive class-D monaural speaker amplifier that was developed for cellular telephones, mobile audio products and the others. The LC filter of the speaker output is...
1.1W to1.5W Monaural Speaker Amplifiers -- BD7830NUV BD7830NUV is speaker amplifier IC for low-voltage drives and low power consumption audio, specialized for mobile telephones and other mobile audio devices.
1.9W + 1.9W Stereo Speaker Amplifiers -- BD7836EFV BD7836EFV is a low voltage drive class-AB stereo speaker amplifier, developed for note-book PC, desktop PC, portable devices and others. Class-AB amplifier has no EMI noise. Adopting power package realize...
80-mW Coupling Capacitorless Stereo Headphone Amplifiers -- BD88400FJ BD88400FJ is an output coupling capacitorless headphone amplifier. This IC has a built-in regulated negative voltage generator type that generates the direct regulated negative voltage from the supply voltage. It...
Coupling Capacitorless Headphone Amplifiers -- BD88200GUL
Coupling Capacitorless Headphone Amplifiers -- BD88210GUL
Coupling Capacitorless Headphone Amplifiers -- BD88215GUL
Coupling Capacitorless Headphone Amplifiers -- BD88220GUL
Coupling Capacitorless Headphone Amplifiers -- BD88400GUL
Coupling Capacitorless Headphone Amplifiers -- BD88410GUL
Coupling Capacitorless Headphone Amplifiers -- BD88415GUL
Coupling Capacitorless Headphone Amplifiers -- BD88420GUL
BD88xxxGUL is output coupling capacitorless headphone amplifier. This IC has a negative voltage generator of regulated type built-in and generates the direct regulated negative voltage from the positive voltage. It...
Standard Headphone Amplifiers -- BH3544F BH3544F is digital-source headphone amplifier. BH3544F has a fixed gain of 6 dB, so external gain setting is not needed. Mute function can make it easy to perform countermeasures to...
Standard Headphone Amplifiers -- BH3547F BH3547F is digital-source headphone amplifier. BH3547F has a fixed gain of 6 dB, so external gain setting is not needed. Mute function can make it easy to perform countermeasures to...
Standard Headphone Amplifiers -- BH3548F BH3548F is headphone amplifier suitable for portable products. BH3548F has a fixed gain of 6 dB, so external resistors for gain setting are not needed. Package of BH3548F is pin-to-pin...
1.1W to1.5W Monaural Speaker Amplifiers -- BH7824FVM BH7824FVM is speaker amplifier IC for low-voltage drives and low power consumption audio, specialized for mobile telephones and other mobile audio devices.
1.1W to1.5W Monaural Speaker Amplifiers -- BH7826FVM BH7826FVM is speaker amplifier IC for low-voltage drives and low power consumption audio, specialized for mobile telephones and other mobile audio devices.
20W+20W Full Digital Speaker Amplifier with built-in DSP -- BM28720MUV BM28720MUV is a Full Digital Speaker Amplifier with built-in DSP (Digital Sound Processor) designed for Flat-panel TVs in particular for space-saving and low-power consumption, delivers an output power of 20W+20W.
17W+17W Full Digital Speaker Amplifier with built-in DSP -- BM28723MUV BM28723MUV is a 17W+17W Class D stereo Speaker Amplifier with built-in DSP designed for TVs specifically for space-saving and low-power consumption. BM28723MUV features BCD (Bipolar, CMOS, DMOS) process technology to...
Class-D Speaker Amplifier for Digital Input with Built-in DSP -- BM5446EFV BM5446EFV is a Class D Speaker Amplifier with built-in DSP (Digital Sound Processor) designed for Flat-panel TVs inparticular for space-saving and low-power consumption, delivers an output power of 20W+20W. This...
Class-D Speaker Amplifier for Digital Input with Built-in DSP -- BM5449MWV BM5449MWV is a Full Digital Speaker Amplifier withbuilt-in DSP (Digital Sound Processor) designed forFlat-panel TVs in particular for space-saving andlow-power consumption, delivers an output power of25W+25W. This IC employs state-of-the-art...
Class-D Speaker Amplifier for Digital Input with Built-in DSP -- BM5480MUV BM5480MUV is a Full Digital Speaker Amplifier withbuilt-in DSP (Digital Sound Processor) designed forFlat-panel TVs in particular for space-saving andlow-power consumption, delivers an output power of20W+20W. This IC employs Bipolar,...
Class-D Speaker Amplifier for Digital Input with Built-in DSP -- BM5481MUV BM5481MUV is a Full Digital Speaker Amplifier withbuilt-in DSP (Digital Sound Processor) designed forFlat-panel TVs in particular for space-saving andlow-power consumption, delivers an output power of20W+20W. This IC employs Bipolar,...
Headphone Amplifier Designed for 0.93V Low Voltage Operation -- BU7150NUV BU7150NUV is Audio Amplifier designed for Single-cell battery operated audio products (VDD = 0.93 ~ 3.5V, at Ta=0~85°C). BU7150NUV can be selected in single-ended mode for stereo headphone and BTL...
Preamps with Built-in ALC -- BA3308F
Preamps with Built-in ALC -- BA3308FV
The BA3308F/FV is a dual preamplifier for recording and playback with ALC (auto level control), developed for stereo radio,cassette recorders, tape recorders, and other pre amplifiers audio applications. ALC circuit...
2W + 2W Stereo Speaker / Headphone Amplifiers -- BH7881EFV The BH7881EFV is a low voltage drive, low noise, high output speaker / headphone amplifier in which a BiCMOS process is used. An on-chip speaker amplifier circuit that is capable...
1W + 1W Stereo Speaker / Headphone Amplifiers -- BH7884EFV The BH7884EFV is a low voltage, low noise, high output speaker and headphone amplifier drive, in which a BiCMOS process is used. This IC supports : headphone amplifier gain adjustment,...
Analog Input Monaural Class-D Speaker Amplifier -- BD5465GUL
Analog Input Monaural Class-D Speaker Amplifier -- BD5466GUL
Analog Input Monaural Class-D Speaker Amplifier -- BD5467GUL
Analog Input Monaural Class-D Speaker Amplifier -- BD5468GUL
These monaural Class D speaker amps have ALC function, and are compatible with differential analog input, making them optimized for a wide variety of applications, from portable devices such as...
Ground Isolation Amplifier -- BA3121F
Ground Isolation Amplifier -- BA3123F
This IC is ground isolation amplifiers developed for use in car audio applications. This IC efficiently eliminates problems caused by wiring resistance, and removes noise generated by the electrical devices...