5秒后页面跳转
BA7781K-E2 PDF预览

BA7781K-E2

更新时间: 2024-02-17 17:12:37
品牌 Logo 应用领域
罗姆 - ROHM 放大器商用集成电路
页数 文件大小 规格书
8页 133K
描述
Audio Amplifier, 2 Channel(s), 1 Func, PQFP32, QFP-32

BA7781K-E2 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:5.24
商用集成电路类型:AUDIO AMPLIFIER增益:15 dB
谐波失真:0.05%JESD-30 代码:S-PQFP-G32
JESD-609代码:e3/e2长度:7 mm
信道数量:2功能数量:1
端子数量:32最高工作温度:70 °C
最低工作温度:-10 °C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
最大压摆率:8 mA最大供电电压 (Vsup):5.25 V
最小供电电压 (Vsup):3 V表面贴装:YES
温度等级:COMMERCIAL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 mmBase Number Matches:1

BA7781K-E2 数据手册

 浏览型号BA7781K-E2的Datasheet PDF文件第2页浏览型号BA7781K-E2的Datasheet PDF文件第3页浏览型号BA7781K-E2的Datasheet PDF文件第4页浏览型号BA7781K-E2的Datasheet PDF文件第5页浏览型号BA7781K-E2的Datasheet PDF文件第7页浏览型号BA7781K-E2的Datasheet PDF文件第8页 
Video ICs  
BA7781K  
Measurement circuit switch table (blank cells: no spesification)  
Parameter  
SW1  
SW2  
MODE1  
H
MODE24  
L
Signal input pin  
Current dissipation 1  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Current dissipation 2  
Preamplifier gain  
Output amplifier gain  
Distortion  
Conditions other than No. 1  
Maximum output  
Output noise voltage  
Input switch separation (INTEXT)  
1
1
L
L
INT  
INT  
1
1
1
1
1
2
1
1
2
1
1
1
1
1
2
1
1
2
H
L
L
L
INT  
Interchannel separation  
EXT  
EXT  
Internal microphone power supply voltage  
H
Vth  
H
Vth  
L
INT, EXT  
Input switch control voltage  
INT, EXT  
L
INV (11) , HPF  
INV (11) , INT  
INV, 16pin of Vth  
HPF, 16pin of Vth  
High-pass filter switching attenuation characteristic  
High-pass filter control voltage  
H
L
H
L
H
L
H and L are VCC and GND levels.  
Measure the voltage range that maintains the mode for Vth.  
Operation notes  
(1) Automatic wind-noise rejection circuit  
(2) Additional compornents for INT / EXT monitor use  
An internal circuit sets pin 12 to roughly the bias poten-  
tial in INT mode, and to GND for EXT mode. This  
switches the external transistor on and off for INT and  
EXT modes respectively. This can be used to indicate  
whether the microphone amplifier is operating with the  
INT or EXT input. In the case of a camcorder, this can  
be used to display a massage such as “EXT MIC ON”  
in the EVF.  
The MAX OUT (pin 10) signal passes through the  
three-stage low-pass filter connected between pins 10  
and 12, and the DC level of the low-frequency signal  
component is detected. This DC voltage (pin 16 DC  
voltage) automatically controls the on / off switching of  
the high-pass filter. The components connected to pins  
11 and 12 set the gain of a multiple-feedback-type two-  
stage low-pass filter constructed around an inverting  
amplifier, and by changing the gain of the circuit you  
can adjust the detection sensitivity.  
It is also possible to switch the high-pass filter manually  
by applying a DC voltage to pin 16 (see Fig 2).  
6

与BA7781K-E2相关器件

型号 品牌 描述 获取价格 数据表
BA7781KVP ROHM Audio Amplifier, 1 Channel(s), 1 Func, PQFP32, QFP-32

获取价格

BA7785 ETC

获取价格

BA7785FS ETC Triple Audio Amplifier

获取价格

BA7786FP-Y ROHM Headphone / speaker amplifier for notebook computers

获取价格

BA7786FP--Y/BA7787FS ETC Headphone/Speaker Amplifier for Notebook Computers

获取价格

BA7787FS ROHM Headphone / speaker amplifier for notebook computers

获取价格