Products > Integrated Circuits (ICs) > Audio ICs > BD37543FS-E2
BD37543FS-E2 SSOP-32
  • BD37543FS-E2
  • BD37543FS-E2 0
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Audio Control, Audio Processor, 7V to 9.5V, I2C, SSOP-A, 32 Pins, -40 °C

Manufacturer :
ROHM Semiconductor
Package/Case :
Product Categories :
Audio Special Purpose
BD37543FS-E2 PDF
RoHs Status:
Lead free / RoHS Compliant

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BD37543FS-E2 Product Details

This series supports common control software, increasing design and development efficiency. Tone quality can be adjusted by parametric equalizer using no external components. The built-in three-band equalizer sub woofer output allows for a space saving design.


  • Reduce switching noise of input gain control, mute, main volume,     fader volume, bass, middle, treble, loudness, by using advanced switch circuit     [Possible to control all steps]
  • Built-in ground isolation amplifier inputs, ideal for external stereo input.
  • Built-in differential input selector that can make various combination of     single-ended / differential input.
  • Built-in input gain controller reduce switching noise for volume of     a portable audio input.
  • Decrease the number of external components by     built-in 3-band equalizer filter, LPF for subwoofer, HPF.    And, possible to control Q, Gv, fo of 3-band equalizer     and fc of LPF and fc of HPF by I²C BUS control freely.
  • It is possible for the bass, middle, treble to the gain adjustment     quantity of ±20dB and 1 dB step gain adjustment.
  • It is equipped with output terminals of Subwoofer.     Moreover, the stereo signal of the front and rear also can be     output by the I²C BUS control.
  • Built-in mixing input and mixing attenuation.
  • Bi-CMOS process is suitable for the design of low current and low energy.     And it provides more quality for small-scale regulator and heat in a set.
  • Package is SSOP-A32. Putting input-terminals together     and output-terminals together can make PCB layout easier     and can makes area of PCB smaller.
  • It is possible to control by 3.3V / 5V for I²C BUS.

BD37543FS-E2 Block Diagram
(Picture: Diagram)

Technical Parameters

Function Audio Tone Processor Operating Temperature -40??C ~ 85??C (TA)
Applications Automotive Audio Package / Case 32-SOP (0.213, 5.40mm Width)
Number of Channels 3 Supplier Device Package 32-SSOPA
Voltage Supply 7V ~ 9.5V

BD37543FS-E2 Documents

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  • ****fred We*****

    Alles Gut gelaufen. Danke!

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ROHM was founded in Kyoto, Japan in 1958. ROHM designs and manufactures semiconductors, integrated circuits and other electronic components. These components have a place in the rapidly changing an...
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