参数资料
型号: LM4819M
厂商: National Semiconductor
文件页数: 23/27页
文件大小: 0K
描述: IC AMP AUDIO PWR .35W MONO 8SOIC
标准包装: 95
系列: Boomer®
类型: AB 类
输出类型: 1-通道(单声道)
在某负载时最大输出功率 x 通道数量: 350mW x 1 @ 16 欧姆
电源电压: 2 V ~ 5.5 V
特点: 消除爆音,差分输入,关闭
安装类型: 表面贴装
供应商设备封装: 8-SOIC
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
其它名称: *LM4819M
SNAS133D – FEBRUARY 2001 – REVISED MARCH 2013
External Components Description
(See Figure 1)
Components
Functional Description
1.
Ri
Combined with Rf, this inverting input resistor sets the closed-loop gain. Ri also forms a high pass filter with Ci at fc =
1/(2
πRiCi).
2.
Ci
This input coupling capacitor blocks DC voltage at the amplifier's terminals. Combined with Ri, it creates a high pass
filter with Ri at fc = 1/(2πRiCi). Refer to the section, Proper Selection of External Components for an explanation of how
to determine the value of Ci.
3.
Rf
Combined with Ri, this is the feedback resistor that sets the closed-loop gain: Av = 2(RF/Ri).
4.
CS
This is the power supply bypass capacitor that filters the voltage applied to the power supply pin. Refer to the
Application Information section for proper placement and selection of Cs.
5.
CB
This is the bypass pin capacitor that filters the voltage at the BYPASS pin. Refer to the section, Proper Selection of
External Components, for information concerning proper placement and selection of CB.
Copyright 2001–2013, Texas Instruments Incorporated
5
Product Folder Links: LM4819 LM4819MBD
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