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BA7755A PDF预览

BA7755A

更新时间: 2024-11-30 22:39:23
品牌 Logo 应用领域
罗姆 - ROHM 复用器开关复用器或开关信号电路
页数 文件大小 规格书
4页 62K
描述
High-voltage audio head selection switch

BA7755A 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:SIP
包装说明:SIP,针数:5
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.65Is Samacsys:N
模拟集成电路 - 其他类型:AUDIO/VIDEO SWITCHJESD-30 代码:R-PSIP-T5
JESD-609代码:e3/e2长度:11.8 mm
信道数量:1功能数量:1
端子数量:5最大通态电阻 (Ron):15 Ω
最高工作温度:65 °C最低工作温度:-10 °C
封装主体材料:PLASTIC/EPOXY封装代码:SIP
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:6.3 mm标称供电电压 (Vsup):9 V
表面贴装:NO温度等级:COMMERCIAL
端子面层:TIN/TIN COPPER端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:10宽度:2.4 mm
Base Number Matches:1

BA7755A 数据手册

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Video ICs  
High-voltage audio head selection  
switch  
BA7755A / BA7755AF  
The standard audio circuits of video cassette recorders and the recording circuits of tape decks use AC bias record-  
ing to record the audio signal onto the tape. This bias voltage is some tens of volts, and a high-capacity bias-side  
switch is required to electronically switch the head when in playback or record mode.  
The BA7755A and BA7755AF are high-voltage switching ICs designed to switch voltages as high as ± 65VDC or  
AC120VP-P (f = 70Hz).  
Two control systems, one for current control, and one for voltage control are provided, so the ICs can be used in cir-  
cuits that employ either method.  
By combining the BA7755A or BA7755AF with the BA7751ALS recording / playback amplifier, it is possible to con-  
struct a compact recording / playback audio circuit. In addition, the BA7755A and BA7755AF are an excellent choice  
for a wide variety of other high-voltage switching applications.  
Applications  
Video cassette recorders and tape decks  
Features  
1) High withstanding voltage ( ± 65VDC (Min.),  
AC120VP-P (Min.), f = 70Hz).  
2) Circuits for either current control or voltage control  
are provided on the chip.  
3) Compact SIP 5pin or SOP 8pin package.  
Block diagram  
BA7755A  
1
2
3
4
5
SW GND CTRL2 CTRL1  
VCC  
CTRL1  
BA7755AF  
8
7
6
5
N.C. N.C. N.C.  
1
2
3
4
VCC HEAD GND CTRL2  
SWITCH  
1

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