24bit Audio CODEC with Stereo Speaker Amplifier - BU26156RFS

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 change Class AB/D and stereo Headphone Outputs. BU26156 also has built-in voltage regulator for the stability of CODEC characteristic that is sensitive to the outside noise.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BU26156RFS-E2 Active HTSSOP-A44R 1500 1500 Taping Yes
Grade Standard
Speaker Amplifier Vcc (Min.) [V] 2.7
Speaker Amplifier Vcc (Max.) [V] 5.5
I/O Interface Vcc (Min.) [V] 1.65
I/O Interface Vcc (Max.) [V] 5.5
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, Line Input
Number of Microphone Amplifiers 1
Number of Line Input Amplifiers 2
Output Amplifier Types Speaker(Class AB/D), Headphone (Normal)
Number of Speaker Amplifiers 2
Number of Headphone Amplifiers 2
Additional Feature ALC Noise Gate, ALC Fast Release, Stereo Enhancer
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 85
    • 24bit Stereo ADC, DAC
    • 2Vrms Input available, Stereo Line Input with ALC
    • Monaural MIC Input with ALC
    • Switch Class AB/D 3W Stereo Speaker Amplifier
    • AM Avoidance Function
    • Stereo Headphone Output Amplifier
    • Digital signal processing
    • High Power Supply Rejection Ratio characteristic
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Technical Data
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.