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參數(shù)資料
| 型號： | BH3856 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | 2-wire serial sound control IC |
| 中文描述： | 2線串行音頻控制IC |
| 文件頁數(shù)： | 15/16頁 |
| 文件大小： | 166K |
| 代理商： | BH3856 |
BH3856S / BH3856FS
Audio ICs
(7) Digital / analog separation
The digital and analog power supplies and grounds for this IC (BH3856) are completely separate. The digital circuits are
supplied from a stable reference source that is on the chip (V
ref
(3.8V)). For this reason, there is no need to worry about
timing shifts, on interference due to digital noise.
(8) Matrix surround
L
→
Input
Input
Output
(2L-R)
Output
(2R-L)
R
→
×
1
×
1
+
+
+
+
+
+
+
The matrix surround circuit construction is as shown in the diagram above. The gain is obtained from the formulas
in the diagram.
Phase Gain
Negative Phase Gain
0dB
6dB
(However, reverse-phase gain is for input to one channel only)
(9) DC control
An internal impedance of 30k
is seen from the VC1, VC2, TC and BC terminals, are 200k
is seen from the SC (pin 11)
terminal, so with regard to DC control, we recommend direct control with the voltage source. When using variable volume,
take the impedance into consideration when making the setting.
Note : The DC control voltage range is 0V to V
ref
.
Do not apply voltages above V
ref
to the terminals.
(10) GND
As shown in the application circuit example, connect the external component GND to the analog GND.
However, the GND for the capacitor connected to the V
ref
terminal should be connected to the digital GND.
If a capacitor with goof high-frequency characteristics is connected in parallel with the capacitor connected to V
ref
, the
performances of the circuit with respect to static noise will improve (we recommend a ceramic capacitor of between
0.001
μ
F and 0.1
μ
F)
When using long digital and analog ground lines, take care to ensure that there is no potential difference between the
two ground lines.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BH3856FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:2-wire serial sound control IC |
| BH3856FS-E2 | 功能描述:音頻 DSP 2WIRE SER SND CTRL IC AUDIO 10V RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| BH3856FV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Volume/Balance Control |
| BH3856S | 功能描述:IC SRL SOUND CONTROL 2WR SDIP30 RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)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(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| BH3856S/FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:映像LSI |
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