Datasheet > BH3856FS

BH3856FS

更新时间： 2024-01-09 15:30:22

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
16页	168K
描述
2-wire serial sound control IC

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技术参数
数据手册

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BH3856FS 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SSOP
包装说明：	SSOP, SOP32,.3,32	针数：	32
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.16
信道分离：	80 dB	商用集成电路类型：	TONE CONTROL CIRCUIT
谐波失真：	0.01%	JESD-30 代码：	R-PDSO-G32
JESD-609代码：	e3/e2	长度：	13.6 mm
频带数量：	2	信道数量：	2
功能数量：	1	端子数量：	32
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装等效代码：	SOP32,.3,32	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
电源：	9 V	认证状态：	Not Qualified
座面最大高度：	1.9 mm	子类别：	Audio Control ICs
最大压摆率：	27 mA	最大供电电压 (Vsup)：	9.5 V
最小供电电压 (Vsup)：	6 V	表面贴装：	YES
技术：	BIPOLAR	温度等级：	INDUSTRIAL
端子面层：	TIN/TIN COPPER	端子形式：	GULL WING
端子节距：	0.8 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	10	宽度：	5.4 mm
Base Number Matches：	1

BH3856FS 数据手册

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

ref

supplied from a stable reference source that is on the chip (V (3.8V)). For this reason, there is no need to worry about

timing shifts, on interference due to digital noise.

(8) Matrix surround

L →

R →

Input

Output

(2L-R)

Output

(2R-L)

∗The matrix surround circuit construction is as shown in the diagram above. The gain is obtained from the formulas

in the diagram.

Phase Gain

0dB

6dB

Negative Phase Gain

(However, reverse-phase gain is for input to one channel only)

(9) DC control

An internal impedance of 30kΩ is seen from the VC1, VC2, TC and BC terminals, are 200kΩ 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.

ref

Note : The DC control voltage range is 0V to V .

ref

Do not apply voltages above V to the terminals.

(10) GND

• As shown in the application circuit example, connect the external component GND to the analog GND.

ref

• However, the GND for the capacitor connected to the V terminal should be connected to the digital GND.

ref

• If a capacitor with goof high-frequency characteristics is connected in parallel with the capacitor connected to V , the

performances of the circuit with respect to static noise will improve (we recommend a ceramic capacitor of between

0.001µF and 0.1µF)

• 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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