2ch/ 6ch Electronic Volume - BD3812F

ROHM's 2ch / 6ch electronic volume ICs feature a wide dynamic range (131dB / 133dB). In addition, two ICs can be paired up via serial bus control for 8ch operation.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD3812F-E2 Active SOP14 2500 2500 Taping Yes
Vcc(Min.)[V] 10.0
Vcc(Max.)[V] 14.6
Iq[mA] 4.0
I/F 2-wire
Outputs 2
Volume Range 0to-103dB 1dB / step
Tone Control Band -
Input Gain[dB] -
THD[%] 0.0050
Output Noise[µVrms] 1.2
Output voltage(Max.)[Vrms] 4.2
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 75
  • ・Residual noise : 1.2μVrms {dynamic range : 131dB (IHF-A)}
    ・2ch independent volume (0 to -103dB, MUTE 1dB/step)
    ・8ch at maximum available in combination of any of BD3811K1, BD3813KS, BD3814FV,
        BD3815KS (6ch volume) in common bus line
    ・It can be controlled until 4 chips with common bus line at the same time
    ・Maximum output voltage : 4.2Vrms (Vcc=7, VEE=-7V, RL=10kΩ)
    ・2-line serial control (for both 3.3V and 5V)
    ・Built-in Output gain amplifier for adjustment of output signal voltage (0, 6 to 18dB,
    ・Output mute controllable by serial data and external control terminal
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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.