欢迎访问ic37.com |
会员登录 免费注册
发布采购

LM4832M 参数 Datasheet PDF下载

LM4832M图片预览
型号: LM4832M
PDF下载: 下载PDF文件 查看货源
内容描述: 数字控制音调和音量电路与立体声音频功率放大器,麦克风前置放大器级和全国3D音效 [Digitally Controlled Tone and Volume Circuit with Stereo Audio Power Amplifier, Microphone Preamp Stage and National 3D Sound]
分类和应用: 放大器功率放大器
文件页数/大小: 22 页 / 691 K
品牌: NSC [ National Semiconductor ]
 浏览型号LM4832M的Datasheet PDF文件第1页浏览型号LM4832M的Datasheet PDF文件第2页浏览型号LM4832M的Datasheet PDF文件第3页浏览型号LM4832M的Datasheet PDF文件第4页浏览型号LM4832M的Datasheet PDF文件第6页浏览型号LM4832M的Datasheet PDF文件第7页浏览型号LM4832M的Datasheet PDF文件第8页浏览型号LM4832M的Datasheet PDF文件第9页  
Pin Description  
CLOCK (17)  
DATA (18)  
This pin is the input for the I2C clock  
signal.  
This pin is the input for the I2C data  
LEFT 3D (1)  
RIGHT 3D  
(28)  
An external RC network is connected  
across these pins. This function provides  
left-right channel cross coupling and  
cancellation to create an enhanced  
stereo channel separation effect.  
signal.  
GENERAL  
PURPOSE  
OUTPUT  
(19)  
This pin provides a general purpose  
TTL/CMOS output. Please refer to the  
Application Information section for more  
information.  
BYPASS (2)  
A 0.1 µF capacitor is placed between  
this pin and ground to provide an AC  
ground for the internal half-supply  
voltage reference. The capacitor at this  
pin affects “click-pop” and THD  
RESET (27)  
This pin is a TTL/CMOS input which is  
used to reset the chip logic and states.  
performance. Turn-on and turn-off times  
are also determined by this capacitor.  
Refer to the Application Information  
section for more information.  
POWER  
AMP OUT  
LEFT (3)  
These outputs are intended to drive 8Ω  
speakers or 32headphones. These  
outputs should be AC-coupled to the  
loads. Refer to the Application  
RIGHT (26)  
Information section for more information.  
POWER  
GND (4)  
This pin provides the high current return  
for the power output stage MOSFETs  
and digital circuitry.  
LOOP OUT  
(8, 21)  
LOOP IN (5,  
24)  
These pins allow an external signal  
processor access to the stereo signal.  
Please see the Application Information  
section for more information.  
TONE OUT  
(6, 23)  
These pins are connected to the tone  
control op amp outputs and drive the  
power amplifier inputs. Refer to the  
Application Information section for more  
information.  
TONE IN  
(7, 22)  
These pins are connected to the inputs  
of the tone control op amps. A capacitor  
between the Tone In and Tone Out pins  
sets the frequency response of the tone  
functions. Please refer to the Application  
Information section for more information.  
INPUTS  
(9, 20)  
These pins are the stereo inputs for the  
LM4832. These pins should be  
AC-coupled to the input signals.  
ANALOG  
GND (10)  
This pin is the AC analog ground for the  
line level AC signal inputs.  
MIC  
INPUTS  
(11, 12)  
These pins are the two independent  
selectable microphone inputs. These  
pins should be AC-coupled.  
MIC OUT  
(14)  
This pin is the output for the microphone  
amplifier and should be AC-coupled to  
the load.  
VDD  
(13, 25)  
These pins are for the 5V supply. These  
pins should be separately bypassed by  
0.1 µF, or higher, film capacitors. The 5V  
supply should be bypassed by a 10 µF,  
or higher, tantalum or aluminum  
electrolytic capacitor.  
ADDRESS  
BITS (15,  
16)  
These pins are used to determine the  
I2C address for the LM4832.  
5
www.national.com