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BD3871FS

Rohm
Part Number BD3871FS
Manufacturer Rohm
Description Sound processor
Published Apr 16, 2005
Detailed Description Sound Processors for BOOM BOX / Mini-component Stereo Sound Processors with Built-in 2-band Equalizers BD3870FS,BD3871FS...
Datasheet PDF File BD3871FS PDF File

BD3871FS
BD3871FS

Overview
Sound Processors for BOOM BOX / Mini-component Stereo Sound Processors with Built-in 2-band Equalizers BD3870FS,BD3871FS,BD3872FS,BD3873FS No.
10086EAT02 ●Description The Sound Processor with built-in 2 Band Equalizer, incorporates functions required for BOOM BOX and mini-component systems, such as input selector, input gain amp, volume, surround, tone (bass, treble), and loud speaker equalizer (BD3872FS only).
These functions can be controlled through the two-wire serial control.
●Features 1) Using external components, center frequencies and Q factors of the bass characteristics are flexible.
2) Providing a mute switch onto one of the input pins allows cross-talk suppression.
3) A surround function can be constructed without external components.
4) Energy-saving design resulting in low current consumption, by utilizing the BiCMOS process ●Applications BOOM BOX, mini-audio systems, and micro-audio systems.
●Line up matrix Parameter Input Gain Loud Speaker Equalizer (SEQ) BD3870FS 0, 6, 12, 18dB No BD3871FS 24, 26, 28dB No BD3873FS 18, 21, 24, 27dB No BD3872FS 0, 5, 10, 19, 21, 23, 26, 28dB Yes Input Selector Volume Equalizer Surround Three inputs 0 to -87dB/ 1dB step, -dB 2 band (Bass, Treble) Yes Three inputs 0 to -87dB/ 1dB step, -dB 2 band (Bass, Treble) Yes Three inputs 0 to –87dB/ 1dB step, -dB 2 band (Bass, Treble) Yes Five inputs 0 to -87dB/ 1dB step, -dB 2 band (Bass, Treble) Yes Serial Control Two-wire serial Two-wire serial Two-wire serial Two-wire serial Package SSOP-A24 SSOP-A24 SSOP-A24 SSOP-A32 ●Absolute maximum ratings (Ta=25℃) Prameter Symbol BD3870FS Ratings BD3871FS BD3873FS Power Supply Voltage Power Dissipation Vcc 10 Pd 800 *1 10 800 *1 10 800 *1 Operating Temperature Range Topr -25 to +75 -25 to +75 -25 to +75 Storage Temperature Range Tstg -55 to +125 -55 to +125 -55 to +125 *1 Reduced by 8.
0 mW/℃ at 25℃ or higher, when installed on the standard board (Size: 70×70×1.
6mm).
*2 Reduced by 9.
5 mW/℃ at 25℃ ...


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