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參數(shù)資料
| 型號： | BH3854 |
| 文件頁數(shù)： | 12/15頁 |
| 文件大小： | 306K |
| 代理商： | BH3854 |
R
2
C
1
C
2
R
1
R
2
C
1
C
2
1
2
π
R
2
5k
f
O
=
1
1
2
R
1
(C
1
C
2
)
Q
1
2
1
C
2
G =
C
1
1
1
(When R
1
= 11.5k
, R
2
= 85k
, C
1
= C
2
= C)
5.1
10
Q
f
O
=
C
1.36
G
8.5
Note: Filter gain is calculated using the equation above. Total output
gain is the sum of the gain for each of the internal circuits.
–6
644
Audio ICs
BH3854AS / BH3854AFS
Operation notes
(1)
Operating power supply voltage range
As long as the operating power supply voltage and ambi-
ent temperature are kept within the specified range, the
basic circuits are guaranteed to function, but be sure to
check the constants as well as the element settings, volt-
age settings, and temperature settings. Also, please take
into consideration internal IC resistance dispersion
(approx.
20%) and temperature fluctuation when mak-
ing settings for IC internal resistance, attachment resis-
tance, capacitor gain, or frequency.
(2)
Primary amp
(
1) The input impedance is 47k
.
(
2) A buffer if R and C
1
are not present.
(
3) The gain can be set by R and the 20k
.
G
VC
= (R + 20k
)/R
Note: Set C
2
(input coupling) and C
1
(used to set the gain) depending on
the frequency band used.
(3)
Bass filter
(
1) The BPF is composed of a multifeedback active filter.
f
o
can be varied according to the value of C.
(theoretical equation)
(4)
Treble filter
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| BH3857FV | Tone/Volume/Balance Control |
| BH3854FS | (306.60 k) |
| BH3856FV | Tone/Volume/Balance Control |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BH3854AFS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Serial sound control IC |
| BH3854AFS-E2 | 功能描述:IC SERIAL SOUND CTRL SSOP-A32 TR RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| BH3854AS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Serial sound control IC |
| BH3854FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:(306.60 k) |
| BH3856 | 制造商:ROHM 制造商全稱:Rohm 功能描述:2-wire serial sound control IC |
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