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BD3870FS データシート(PDF) 1 Page - Rohm |
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BD3870FS データシート(HTML) 1 Page - Rohm |
1 / 16 page 1/15 www.rohm.com 2010.10 - Rev.A © 2010 ROHM Co., Ltd. All rights reserved. Sound Processors for BOOM BOX / Mini-component Stereo Sound Processors with Built-in 2-band Equalizers 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 BD3871FS BD3873FS BD3872FS Input Gain 0, 6, 12, 18dB 24, 26, 28dB 18, 21, 24, 27dB 0, 5, 10, 19, 21, 23, 26, 28dB Loud Speaker Equalizer (SEQ) No No No Yes Input Selector Three inputs Three inputs Three inputs Five inputs Volume 0 to -87dB/ 1dB step, - dB 0 to -87dB/ 1dB step, - dB 0 to –87dB/ 1dB step, - dB 0 to -87dB/ 1dB step, - dB Equalizer 2 band (Bass, Treble) 2 band (Bass, Treble) 2 band (Bass, Treble) 2 band (Bass, Treble) Surround Yes Yes Yes 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 Ratings Unit BD3870FS BD3871FS BD3873FS BD3872FS Power Supply Voltage Vcc 10 10 10 10 V Power Dissipation Pd 800 * 1 800 * 1 800 * 1 950 * 2 mW Operating Temperature Range Topr -25 to +75 -25 to +75 -25 to +75 -25 to +75 ℃ Storage Temperature Range Tstg -55 to +125 -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℃ or higher, when installed on the standard board (Size: 70×70×1.6mm). ● Operating voltage range Prameter Symbol Ratings Unit BD3870FS BD3871FS BD3873FS BD3872FS Operating Voltage Range Vcc 4.5 to 9.5 4.5 to 9.5 4.5 to 9.5 4.5 to 9.5 V *It must function normally at Ta=25℃. No.10086EAT02 |
同様の部品番号 - BD3870FS_10 |
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同様の説明 - BD3870FS_10 |
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