General-Purpose Electronic Volume with Built-in Advanced Switch - BD37034FV-M

BD37034FV-M is sound processors for car audio. The functions are stereo 5 input selector, volume, 3-band equalizer, loudness, 6ch fader, mixing, HPF for front and rear, LPF for subwoofer, anti-aliasing-filter, Hi-Voltage output, output level detector. Moreover, “Advanced switch circuit”, that is ROHM original technology, can reduce various switching noise (ex. No-signal, low frequency likes 20Hz & large signal inputs). “Advanced switch” makes control of microcomputer easier, and can construct high quality car audio system.

Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD37034FV-ME2 Active SSOP-B28 2000 2000 Taping Yes
Vcc(Min.)[V] 7.0
Vcc(Max.)[V] 9.5
Iq[mA] 36.0
Outputs 3
Tone Control Band Bass, Middle, Treble
Input Gain[dB] 0to+16dB
FADER[dB] to-100, -∞
THD[%] 0.0040
Output Noise[µVrms] 6
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・Reduce switching noise by using advanced switch circuit.
    ・Built-in input selector (single 3 / diff 2).
    ・Decrease the number of external components
    ・Built-in mixing volume and anti-aliasing-filter.
    ・Built-in anti-GSM-noise-filter.
    ・Package is SSOP-B28.
    ・It is possible to control by 3.3V / 5V for I²C BUS.
    ・AEC-Q100 Qualified.
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Technical Data
Application Note

Thermal Resistance