BD3491FS
Sound Processor with Built-in Surround Sound Function

Built in stereo 6 input selectors and volume that there is not an impedance change of a volume terminal. And this is sound processor can realize 2-band equalizer (Bass/Treble, Gain±14dB / 2dB_step) and BassBoost, Output gain, Surround by external components.

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* This is a standard-grade product.
For Automotive usage, please contact Sales.

Product Detail

 
Part Number | BD3491FS-E2
Status | Recommended
Package | SSOP-A32
Unit Quantity | 2000
Minimum Package Quantity | 2000
Packing Type | Taping
RoHS | Yes

Specifications:

Vcc(Min.)[V]

4.75

Vcc(Max.)[V]

9.5

Iq[mA]

7.0

I/F

I2C BUS

Volume Range

0to-87 / -∞ (1dB / step) Independent control

Tone Control Band

BASS, Treble

Input Gain[dB]

0 / 2 / 4 / 6 / 8 / 12 / 16 / 20

Surround

Yes

THD[%]

0.002

Output Noise[µVrms]

5

Output voltage(Max.)[Vrms]

2.3

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Features:

· Equipped with 6 single ended stereo input selectors.
· Built-in input gain controller suitable for mobile audio.
· Volume input terminal can be used as a microphone input terminal since its impedance remains constant even if volume setting is changed.
· Bi-CMOS process is suitable for the design of low current and low energy. It also provides more quality for Bi-CMOS small scale regulator and heat in a set.
· The package of this IC is SSOP-A32. Sound input terminals and output terminals arrangement is optimized for easy and fast layout of PCB pattern. At the same time, it minimizes PCB area.

Design Resources

 

Technical Articles

Schematic Design & Verification

  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • Thermal Resistance

Tools

2D/3D/CAD

  • SSOP-A32 Footprint / Symbol
  • SSOP-A32 3D STEP Data

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)