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BD3870FS_10

更新时间： 2024-12-01 08:51:23
品牌 Logo 应用领域
罗姆 - ROHM /
页数 文件大小 规格书
16页 450K
描述
Sound Processors with Built-in 3-band Equalizers

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BD3870FS_10 数据手册

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Sound Processors for BOOM BOX / Mini-component Stereo  
Sound Processors  
with Built-in 2-band Equalizers  
No.10086EAT02  
BD3870FS,BD3871FS,BD3872FS,BD3873FS  
●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  
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  
Input Gain  
Loud Speaker Equalizer (SEQ)  
Input Selector  
Volume  
Yes  
Three inputs  
Three inputs  
Three inputs  
Five inputs  
0 to -87dB/  
1dB step, -dB  
0 to -87dB/  
1dB step, -dB  
0 to –87dB/  
1dB step, -dB  
0 to -87dB/  
1dB step, -dB  
2 band  
(Bass, Treble)  
2 band  
(Bass, Treble)  
2 band  
(Bass, Treble)  
2 band  
(Bass, Treble)  
Equalizer  
Surround  
Yes  
Yes  
Yes  
Yes  
Serial Control  
Package  
Two-wire serial  
SSOP-A24  
Two-wire serial  
SSOP-A24  
Two-wire serial  
SSOP-A24  
Two-wire serial  
SSOP-A32  
●Absolute maximum ratings (Ta=25℃)  
Ratings  
Prameter  
Symbol  
Unit  
BD3870FS  
BD3871FS  
10  
BD3873FS  
10  
BD3872FS  
10  
950 *2  
Power Supply Voltage  
Vcc  
Pd  
10  
800 *1  
V
mW  
℃
Power Dissipation  
800 *1  
800 *1  
Operating Temperature Range  
Storage Temperature Range  
Topr  
Tstg  
-25 to +75  
-55 to +125  
-25 to +75  
-55 to +125  
-25 to +75  
-55 to +125  
-25 to +75  
-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℃ or higher, when installed on the standard board (Size: 70×70×1.6mm).  
●Operating voltage range  
Ratings  
Prameter  
Symbol  
Vcc  
Unit  
V
BD3870FS  
4.5 to 9.5  
BD3871FS  
4.5 to 9.5  
BD3873FS  
4.5 to 9.5  
BD3872FS  
4.5 to 9.5  
Operating Voltage Range  
*It must function normally at Ta=25℃.  
www.rohm.com  
© 2010 ROHM Co., Ltd. All rights reserved.  
2010.10 - Rev.A  
1/15  
1234567...16

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