5.1ch Sound Processors - BD3815KS

ROHM 5.1 sound processor ICs make it easy to configure 5.1 home theater systems.

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* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BD3815KS-F Active SQFP56 1000 1000 Taping Yes
Vcc(Min.)[V] 10.0
Vcc(Max.)[V] 14.6
Iq[mA] 20.0
I/F 2-wire
Outputs 6
Volume Range 0to-95dB 1dB / step
Tone Control Band BASS, Treble
Input Gain[dB] 0, 6, 18dB
THD[%] 0.0040
Output Noise[µVrms] 1.5
Output voltage(Max.)[Vrms] 4.2
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 75
  • ・Wide dynamic range: 129dB (Tone Bypass, VOL=MUTE, IHF-A)
    ・Independent 6 channels for Master Volume (0 to -95 dB, MUTE 1dB/Step)
        Implementation of a resistance ladder type circuit reduces residual noise and a
        shock sound at switching.
    ・Low current consumption design achieved by adopting the Bi-CMOS process
    ・Maximum output voltage: 4.2Vrms (Vcc=7V, VEE=-7V, RL=10kΩ)
    ・Built-in 5ch independent input gain amplifier useful for amplifying input signals
    ・Built-in 2ch output port
    ・2-wire serial control (For both 3.3V and 5V)
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New Products:
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.