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BA7181 PDF预览

BA7181

更新时间: 2024-01-31 08:52:58
品牌 Logo 应用领域
罗姆 - ROHM 放大器
页数 文件大小 规格书
8页 97K
描述
2-channel PRE / REC amplifier with auto-tracking interface

BA7181 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:SSOP
包装说明:SSOP-20针数:20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.1
Is Samacsys:N商用集成电路类型:VIDEO PREAMPLIFIER
增益:60 dBJESD-30 代码:R-PDSO-G20
JESD-609代码:e3/e2长度:8.7 mm
信道数量:2功能数量:1
端子数量:20最高工作温度:65 °C
最低工作温度:-20 °C封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SOP20,.3
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):260电源:5 V
认证状态:Not Qualified座面最大高度:1.9 mm
子类别:Audio/Video Amplifiers最大压摆率:110 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
表面贴装:YES技术:BIPOLAR
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:DUAL处于峰值回流温度下的最长时间:10
宽度:5.4 mmBase Number Matches:1

BA7181 数据手册

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Video ICs  
2-channel PRE / REC amplifier with  
auto-tracking interface  
BA7181FS  
The BA7181FS is a PRE / REC amplifier developed for use in video cassette recorders. It has been designed for use  
in two-head decks and features built-in FB damping, two preamplifiers, a chroma output amplifier, an FM output  
amplifier (with AGC), an envelope detector, a constant-current BTL-drive REC amplifier (with AGC)and built-in chan-  
nel and REC / PB switches on a single monolithic IC.  
Applications  
VCRs  
Features  
1) The playback amplifier has a total gain of 57dB  
(Typ.), and has a low-noise preamplifier. Designed  
for VHS-band operation with low external parts  
count. The IC has two circuits for two-head VCR  
applications.  
4) The recording amplifier uses constant-current BLT  
drive that handles load variations (i.e. head imped-  
ance)well, and gives stable recording characteris-  
tics. A single circuit is provided for two-head VCR  
use.  
2) Two playback output systems (through output and  
AGC output). The AGC output level is 300mVP-P(Typ.);  
suitable for FM brightness signal output.  
5) Built-in recording level AGC means adjustment of  
FM recording current is not necessary.  
6) Head switches for two-channel PRE / REC system  
provided.  
3) Auto-tracking interface is provided for automated  
tracking adjustment. The detector characteristic is  
linear, and the sensitivity can be adjusted using  
external components.  
7) Operates off a single 5V power supply, with low  
power dissipation.  
Absolute maximum ratings (Ta = 25°C)  
Parameter  
Symbol  
VCC  
Limits  
7.0  
Unit  
V
Applied voltage  
Power dissipation  
Pd  
937.5  
mW  
°C  
Operating temperature  
Storage temperature  
Topr  
Tstg  
– 20 ~ + 65  
– 55 ~ + 150  
°C  
When mounted on a 90mm × 50mm, t = 1.6mm glass epoxy board.  
Reduced by 7.5mW for each increase in Ta of 1°C over 25°C.  
Recommended operating (Ta = 25°C)  
Parameter  
Symbol  
VCC  
Min.  
4.5  
Typ.  
5.0  
Max.  
5.5  
Unit  
V
Conditions  
11pin  
Playback / recording (voltage range)  
Not designed for radiation resistance.  
1

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