LM4924SD

更新时间： 2024-01-09 07:41:32

品牌	Logo	应用领域
美国国家半导体 - NSC		电池音频放大器
页数	文件大小	规格书
16页	422K
描述
2 Cell Battery, 40mW Per Channel Output Capacitor-Less(OCL) Stereo Headphone Audio Amplifier

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LM4924SD 技术参数

ates a low pass filter that eliminates possible high frequency

oscillations. Care should be taken when calculating the -3dB

frequency in that an incorrect combination of R_fand C_fwill

cause frequency response roll off before 20kHz. A typical

combination of feedback resistor and capacitor that will not

produce audio band high frequency roll off is Rf = 20kΩ and

C_f= 25pF. These components result in a -3dB point of

approximately 320kHz.

Application Information (Continued)

The LM4924 is unity-gain stable and requires no external

components besides gain-setting resistors, input coupling

capacitors, and proper supply bypassing in the typical appli-

cation. However, if a very large closed-loop differential gain

is required, a feedback capacitor (C_f) may be needed to

bandwidth limit the amplifier. This feedback capacitor cre-

REFERENCE DESIGN BOARD and LAYOUT GUIDELINES

MSOP & SD BOARDS

20121030

FIGURE 4.

(Note: R_PU2 is not required. It is used for test measurement purposes only.)

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型号	品牌	描述	获取价格	数据表
LM4924SD/NOPB	TI	0.04W, 2 CHANNEL, AUDIO AMPLIFIER, DSO10, LLP-10	获取价格
LM4924SDX/NOPB	TI	IC,AUDIO AMPLIFIER,SINGLE,LLCC,10PIN,PLASTIC	获取价格
LM4925	NSC	2 Cell, Single Ended Output, 40mW Stereo Headphone Audio Amplifier	获取价格
LM49250	NSC	Enhanced Emissions Suppression Stereo Class D Audio Sub-System with Ground Referenced Head	获取价格
LM49250_08	NSC	Enhanced Emissions Suppression Stereo Class D Audio Sub-System with Ground Referenced Head	获取价格
LM49250RL	NSC	Enhanced Emissions Suppression Stereo Class D Audio Sub-System with Ground Referenced Head	获取价格