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BA7781K PDF预览

BA7781K

更新时间: 2024-02-19 19:29:00
品牌 Logo 应用领域
罗姆 - ROHM 消费电路商用集成电路音频放大器视频放大器摄像机
页数 文件大小 规格书
7页 123K
描述
Stereo microphone amplifier for camcorders

BA7781K 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:QFP
包装说明:QFP-32针数:32
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.71
Is Samacsys:N商用集成电路类型:AUDIO AMPLIFIER
JESD-30 代码:S-PQFP-G32JESD-609代码:e3/e2
长度:7 mm信道数量:1
功能数量:1端子数量:32
封装主体材料:PLASTIC/EPOXY封装代码:LQFP
封装形状:SQUARE封装形式:FLATPACK, LOW PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.55 mm最大供电电压 (Vsup):5 V
最小供电电压 (Vsup):3 V表面贴装:YES
端子面层:TIN/TIN COPPER端子形式:GULL WING
端子节距:0.8 mm端子位置:QUAD
处于峰值回流温度下的最长时间:10宽度:7 mm
Base Number Matches:1

BA7781K 数据手册

 浏览型号BA7781K的Datasheet PDF文件第2页浏览型号BA7781K的Datasheet PDF文件第3页浏览型号BA7781K的Datasheet PDF文件第4页浏览型号BA7781K的Datasheet PDF文件第5页浏览型号BA7781K的Datasheet PDF文件第6页浏览型号BA7781K的Datasheet PDF文件第7页 
Video ICs  
Stereo microphone amplifier for cam-  
corders  
BA7781K  
The BA7781K allows construction of a stereo-microphone amplifier for camcorder use with a minimum number of  
external components. The IC has a built-in wind-noise detection circuit, and wind-noise rejection filter. The filter cir-  
cuit is controlled automatically. The IC can operate off a 3.0V power supply.  
Applications  
Camcorders  
Features  
1) Operates off a 3.0V to 5.25V power supply.  
2) Automatic wind-noise rejection circuit.  
3) Matrix circuit for stereo emphasis.  
4) Automatic switching circuit for external micro-  
phones, built-in external monaural decision circuit,  
and input switch mode decision circuit.  
Block diagram  
24  
23  
22  
21  
20  
19  
18  
15dB  
17  
EXT IN  
L
DET OUT  
DET IN  
25  
26  
27  
28  
29  
30  
31  
32  
16  
15  
14  
13  
12  
11  
10  
09  
EXT  
INT  
+
13dB  
BG  
INT IN  
L
BIAS  
EXT  
+
MIX  
BIAS  
VCC  
10dB  
GND  
VCC  
VREG  
LPF INV OUT  
LPF INV IN  
MIX OUT  
MIC MONO  
+ –  
INT IN  
R
EXT  
RIPL  
13dB  
02  
INT  
+
EXT IN  
R
EXT  
15dB  
07  
01  
03  
04  
05  
06  
08  
1

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