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NJM2772 PDF预览

NJM2772

更新时间: 2024-11-08 22:51:47
品牌 Logo 应用领域
NJRC 放大器便携式
页数 文件大小 规格书
4页 59K
描述
LOW-VOLTAGE HEADPHONE AMPLIFIER for PORTABLE-AUDIO

NJM2772 数据手册

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NJM2772  
LOW-VOLTAGE HEADPHONE AMPLIFIER for PORTABLE-AUDIO  
GENERAL DESCRIPTION  
PACKAGE OUTLINE  
The NJM2772 is a low voltage headphone amplifier for  
portable audio.  
The NJM2772 includes mute circuit, center amplifier and  
beep input, reduce the external parts, standby circuit and  
center amplifier with ON/OFF, applies to low current  
consumption. The mute function reduces the turn-noise at  
standby mode.  
NJM2772V  
The NJM2772 is suitable for portable MD, CD, and others  
portable audio system with headphone amplifier.  
FEATURES  
Operating Voltage  
Operating Current  
V+=1.8-4.5V  
1.2mA typ. @Center Amp. Off  
2.0mA typ. @Center Amp. On  
18µA typ.  
6mWmin. @RL=16, THD=10%  
11.5dB typ.  
Low Standby Current  
High Output Power  
Fixed Gain  
Package Outline  
Bipolar Technology  
SSOP14  
PIN CONFIGURATION & BLOCK DIAGRAM  
Pin Function  
1.STBY  
2.INA  
3.CenterSW  
4.VREF  
1
14  
STBY  
DNC  
PA-A  
+
2
3
13  
12  
OUTA  
V+  
INA  
CenterSW  
5. BEEP  
6.INB  
7.MUTE  
8.MuteTC  
9.OUTB  
10.GND  
11.OUTC  
12. V+  
PA-C  
4
5
6
7
Vref  
11  
10  
9
OUTC  
GND  
Vref  
BEEP  
INB  
PA-B  
+
OUTB  
MuteTC  
13.OUTA  
14.DNC  
8
MUTE  
Note)DNC(14pin):Do not connect  
- 1 -  

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