ROHM Semiconductor GmbH 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
BD27400GUL 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...
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...
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...
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...
BD5413EFV is a 5W + 5W stereo class-D power amplifier specifically developed for low power consumption and low heat generation applications like powered speakers. BD5413EFV employs the state-of-the-art BCD (Bipolar,...
BD5423AEFS is a 17W + 17W stereo class-D power amplifier IC, developed for space-saving and low heat-generation applications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and...
BD5424EFS is a 20W + 20W stereo class-D power amplifier IC, developed for space-saving and low heat-generation applications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and...
BD5426EFS is a 10W + 10W stereo class-D power amplifier IC, developed for space-saving and low heat-generation applications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and...
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...
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...
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...
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...
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...
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...
BD78306EFJ-M is a Class-AB monaural speaker amplifier with 6dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD78308EFJ-M is a Class-AB monaural speaker amplifier with 8dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD7830NUV is speaker amplifier IC for low-voltage drives and low power consumption audio, specialized for mobile telephones and other mobile audio devices.
BD78310EFJ-M is a Class-AB monaural speaker amplifier with 10dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD78312EFJ-M is a Class-AB monaural speaker amplifier with 12dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD78314EFJ-M is a Class-AB monaural speaker amplifier with 14dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD78316EFJ-M is a Class-AB monaural speaker amplifier with 16dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD78318EFJ-M is a Class-AB monaural speaker amplifier with 18dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD78320EFJ-M is a Class-AB monaural speaker amplifier with 20dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD78322EFJ-M is a Class-AB monaural speaker amplifier with 22dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD78324EFJ-M is a Class-AB monaural speaker amplifier with 24dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
BD78326EFJ-M is a Class-AB monaural speaker amplifier with 26dB voltage gain designed for automotive. BD783xxEFJ-M series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for care...
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...
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...
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...
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...
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...
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...
BM28723AMUV is a 17W+17W Class D stereo Speaker Amplifier with built-in DSP designed for TVs specifically for space-saving and low-power consumption. BM28723AMUV features BCD (Bipolar, CMOS, DMOS) process technology to...
BU26156RFS is Low Power Stereo Audio CODECs with built-in various acoustic effects. BU26156RFS has stereo line and monaural mic inputs that can input to 2Vrms, stereo speaker amplifier that can...
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...
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...
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,...
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...
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...