Sound Processors with built-in 2-band Equalizers - BD37521FS | ROHM Semiconductor - ROHM Co., Ltd. - global

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Sound Processors with built-in 2-band Equalizers - BD37521FS

This series supports common control software, increasing design and development efficiency. In addition, an internal 2-band equalizer enables the adjustment of the tone and bass signals without using external components, while 3 input selectors and 4ch independent volume and fader control ensure compatibility with 3 audio inputs and 4ch output (front/rear/left/right), contributing to greater space savings.

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* This product is a STANDARD grade product and not recommend for on-vehicle devices.

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Part Number | BD37521FS-E2

Status | Active

Package | SSOP-A24

Unit Quantity | 2000

Minimum Package Quantity | 2000

Packing Type | Taping

RoHS | Yes

Specifications:

Vcc(Min.)[V]

7.0

Vcc(Max.)[V]

9.5

Iq[mA]

38.0

I/F

I2C BUS

Outputs

Volume Range

+15to-79, -∞

Tone Control Band

BASS, Treble

Number of of single input

Number of of ISO input

Input Gain[dB]

0to+20

LOUDNESS

External

FADER[dB]

0to-79, -∞

THD[%]

0.001

Output Noise[µVrms]

3.8

Output voltage(Max.)[Vrms]

2.3

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

Features:

・Reduce switching noise of input gain control, mute, main volume,
    fader volume, bass, 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 input gain controller reduce switching noise for volume of
    a portable audio input.
・Decrease the number of external components by built-in 2-band equalizer filter.　
    And, possible to control Gv by I²C BUS control.
・It is possible for the bass, treble to the gain adjustment
    quantity of ±20dB and 1 dB step gain adjustment.
・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-A24. 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.

Supporting Links:

Sound Processor ICs for Car Audio

High Fidelity Multifunctional Sound Processors for Car Audio Systems

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