Datasheet > BD88400FJ

BD88400FJ

更新时间： 2023-09-03 20:34:14

品牌	Logo	应用领域
罗姆 - ROHM		放大器驱动泵电容器
页数	文件大小	规格书
30页	969K
描述
BD88400FJ是无需输出耦合电容器的耳机放大器。本IC内置有稳压电荷泵型负电源发生电路，可从电源电压直接生成稳定的-2.4V负电压。通过采用+2.4V的正电压与该负电压的两种电压来驱动耳机放大器，以ground level为基准进行输出。因此，无需大容量的输出耦合电容器，可直接连接耳机。由此，可降低成本，缩减电路板面积，降低部件的高度。此外，没有因输出耦合电容器与输出负载阻抗引起的低音区域的信号衰减，可输出丰富的低音。

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BD88400FJ 数据手册

Datasheet

80-mW Coupling Capacitorless

Stereo Headphone Amplifiers

BD88400FJ

General Description

Package

W(Typ) x D(Typ) x H(Max)

BD88400FJ is an output coupling capacitorless

headphone amplifier. This IC has a built-in regulated

negative voltage generator type that generates the direct

regulated negative voltage from the supply voltage. It is

possible to drive headphones in a ground standard with

both voltage of the positive voltage (+2.4V) and the

negative voltage (-2.4V). Therefore a large capacitance

output coupling capacitor becomes needless and can

reduce cost, board area and height of the part.

In addition, there is no signal degradation at the low

range caused by the output coupling capacitor and

output load impedance, thus a rich low tone can be

outputted.

SOP-J14

8.65mm x 6.00mm x 1.65mm

Features

No Bulky DC-Blocking Capacitors Required

No Degradation of Low-Frequency Response Due

to Output Capacitors

Ground-Referenced Outputs

Gain setting: Variable Gain with External Resistors

Low THD+N

Low Supply Current

Integrated Negative Power Supply

Integrated Short-Circuit and Thermal-Overload

Protection

Applications

Home Audio, TVs, Portable Audio Players, PCs, Digital

Cameras, Electronic Dictionaries, Voice Recorders,

Bluetooth Headsets, etc.

Key Specifications and Lineup

Supply Voltage [V]

+2.4 to +5.5

Supply Current [mA]

Gain [V/V]

2.0 (No Signal)

Variable Gain with External Resistor

Maximum Output Power [mW]

(V_DD=3.3V,R_L=16Ω, THD+N≤1%,f=1kHz)

0.006

THD+N [%]

(V_DD=3.3V,R_L=16Ω,Po=10mW,f=1kHz)

Noise Voltage [µVrms]

PSRR [dB]

-80

(f=217Hz)

○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays

.www.rohm.com

TSZ02201-0C1C0EA00160-1-2

07.Aug.2014 Rev.002

1/27

TSZ22111・14・001

12 3 4 5 6 7...30

中文翻译

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与BD88400FJ相关器件

型号	品牌	获取价格	描述	数据表
BD88400GUL	ROHM	获取价格	Coupling Capacitorless Headphone Amplifiers
BD88400GUL-E2	ROHM	获取价格	Coupling Capacitorless Headphone Amplifiers
BD88410GUL	ROHM	获取价格	Coupling Capacitorless Headphone Amplifiers
BD88410GUL-E2	ROHM	获取价格	Coupling Capacitorless Headphone Amplifiers
BD88415GUL	ROHM	获取价格	Coupling Capacitorless Headphone Amplifiers
BD88415GUL-E2	ROHM	获取价格	Coupling Capacitorless Headphone Amplifiers
BD88420GUL	ROHM	获取价格	Coupling Capacitorless Headphone Amplifiers
BD88420GUL-E2	ROHM	获取价格	Coupling Capacitorless Headphone Amplifiers
BD8876FV	ROHM	获取价格	Output Coupling Capacitor-less Line Amplifier
BD8876FV-E2	ROHM	获取价格	Output Coupling Capacitor-less Line Amplifier

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