Zakładka z wyszukiwarką danych komponentów |
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BD3870FS Arkusz danych(PDF) 9 Page - Rohm |
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BD3870FS Arkusz danych(HTML) 9 Page - Rohm |
9 / 16 page Technical Note 9/15 www.rohm.com 2010.10 - Rev.A © 2010 ROHM Co., Ltd. All rights reserved. BD3870FS,BD3871FS,BD3872FS,BD3873FS C1 C2 R3 R4 IN R1 + - R2 (Hz) R4 R3 R2 C1C2 R4 R3 R1R2 2 π 1 f0 C2 C1 R1 R4 R3 R2 R1R2R4C1C2 Q (dB) 1 C1 C2 R4 R3 R2 R1 R2R3 1 C1 C2 R4 R3 R2 R1 R4 R3 R2 20log G(boost) ● Description of operations 1) Bass filter Using external components, center frequencies and Q factors of the bass characteristics are flexible Fig.5 Standard values of R3, R4 (reference) (R1=5.6kΩ, R2=390kΩ, C1=C2=0.1µF) Bass Boost Cut Amount Resistance (kΩ) * Typ. R3 R4 0dB 77.64 0 2dB 58.90 18.73 4dB 44.02 33.60 6dB 32.20 45.42 8dB 22.82 54.80 10dB 15.36 62.26 12dB 9.44 68.18 14dB 4.78 72.84 * The actual boost cut amount may deviate from the standard values in some degree. ( dB) 1 C1 C2 R4 R3 R2 R1 R4 R2(R3 1 C1 C2 R4 R3 R2 R1 R2R3 20log cut G Fig.6 G f F0 G G |
Podobny numer części - BD3870FS_10 |
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Podobny opis - BD3870FS_10 |
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