Datasheet > BD3812F_1

BD3812F_1

更新时间： 2022-12-20 11:03:42

品牌	Logo	应用领域
罗姆 - ROHM		电子
页数	文件大小	规格书
10页	331K
描述
2ch Electronic Volume

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BD3812F_1 数据手册

Sound Processors for Home Theater Systems

2ch

Electronic Volume

BD3812F

No.10081EAT03

●Description

BD3812F is an electronic volume having volume, gain amplifier functions necessary for applications in AV receivers, home

theatre systems, min-component systems and so forth. Having a chip select terminal, it can be controlled until 4 chips with

common bus line.

●Features

1) Residual noise : 1.2µVrms {dynamic range : 131dB (IHF-A)}

2) 2ch independent volume (0 to -103dB, MUTE 1dB/step)

3) 8ch at maximum available in combination of any of BD3811K1, BD3813KS, BD3814FV, BD3815KS (6ch volume)

in common bus line

4) It can be controlled until 4 chips with common bus line at the same time

5) Maximum output voltage : 4.2Vrms (Vcc=7, VEE=-7V, RL=10kΩ)

6) 2-line serial control (for both 3.3V and 5V)

7) Built-in Output gain amplifier for adjustment of output signal voltage (0, 6 to 18dB, 2dB/step)

8) Output mute controllable by serial data and external control terminal

●Applications

AV receivers, home theater systems, mini-component systems, etc.

●Absolute maximum ratings (Ta=25℃)

Parameter

Powewr supply voltage

Input signal voltage

Symbol

Ratings

Unit

VCC

VEE

7.5 ^*1

-7.5

VIN

VCC+0.3 to VEE-0.3

450^*2

Power dissipation

℃

Operating temperature range

Storage temperature range

Topr

Tastg

－20 to +75

－55 to +125

℃

Even in the specified range of Power Supply Voltage, applying voltage only to the VCC side may

cause an excessive current to give a permanent damage to the IC.

When starting up power supplies, VEE and VCC should be powered on simultaneously or VEE first; then followed by VCC.

Over Ta＝25°C, reduce at the rate of 4.5mW/°C. When installed on the standard board (size: 70x70x1.6mm).

●Operating conditions

It must function normally at Ta＝25°C.

Ratings

Parameter

Symbol

Unit

Min.

Typ.

Max.

7.3

-5

VCC

VEE

Operating source voltage

-7.3

-7

www.rohm.com

2010.06 - Rev.A

1/9

12 3 4 5 6 7...10

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