24bit Audio CODEC with Touch I/FADC - BU26154MUV

BU26154 is a low-power compact audio CODEC. BU26154 also incorporates touch panel interface and Cap-Less headphones amplifier, speaker amplifier which is most suitable for digital still cameras, electronic dictionaries. BU26154 has built-in voltage regulator for the stability of CODEC characteristic that is sensitive to the outside noise. Speaker amplifier that can change AB/D Class. Therefore, when the interference including the FM radio influences it, BU26154 can prevent interference by operating AB grade. As digital code processing, it is equipped with the high-pass filter as the noise cut use of the specific frequency band, Notch filter and the Equalizer of 5 bands and P²Bass+, Noise gate, and flexible sound quality effect processing is possible.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
número de peça
Estado de Condição
Quantidade Unidade
Quantidade mínima Package
tipo de embalagem
BU26154MUV-E2 Active VQFN40 2000 2000 Taping sim
Grade Standard
Speaker Amplifier Vcc (Min.) [V] 2.7
Speaker Amplifier Vcc (Max.) [V] 5.5
I/O Interface Vcc (Min.) [V] 2.7
I/O Interface Vcc (Max.) [V] 3.6
Other Power Suply Vcc (Min.) [V] 2.7
Other Power Suply Vcc (Max.) [V] 3.6
I/F 2wire, 3wire
Sampling Rate (Max.) [kHz] 48kHz
Resolution (Max.) 24bit
Input Amplifier Types Microphone
Number of Microphone Amplifiers 1
Output Amplifier Types Speaker(Class AB/D), Headphone (CAP-less)
Number of Speaker Amplifiers 1
Number of Headphone Amplifiers 2
Additional Feature ALC Noise Gate, ALC Fast Release, P2Bass, Touch Panel I/F
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 85
    • Various sound processing functions
    • High PSRR is attained by built-in regulator
    • Speaker amplifier can be switched to AB class and D class.
    • Touch panel interface.
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Dados técnicos
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.