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BA1448S PDF预览

BA1448S

更新时间: 2024-11-10 22:39:23
品牌 Logo 应用领域
罗姆 - ROHM 消费电路商用集成电路接收器集成电路光电二极管
页数 文件大小 规格书
9页 184K
描述
AM radio / FM IF stereo system IC

BA1448S 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:DIP
包装说明:SDIP-24针数:24
Reach Compliance Code:compliant风险等级:5.68
Is Samacsys:N商用集成电路类型:AUDIO SINGLE CHIP RECEIVER
解调类型:AM/FM谐波失真:0.6%
JESD-30 代码:R-PDIP-T24JESD-609代码:e3/e2
长度:22.9 mm功能数量:1
端子数量:24最高工作温度:75 °C
最低工作温度:-25 °C输出电压标称(AM):90 mV
标称输出电压(调频):90 mV封装主体材料:PLASTIC/EPOXY
封装代码:SDIP封装形状:RECTANGULAR
封装形式:IN-LINE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:4.25 mm
信噪比Nom(FM):70 dB最大压摆率:29 mA
最大供电电压 (Vsup):8 V最小供电电压 (Vsup):3.8 V
表面贴装:NO温度等级:COMMERCIAL EXTENDED
端子面层:TIN/TIN COPPER端子形式:THROUGH-HOLE
端子节距:1.778 mm端子位置:DUAL
处于峰值回流温度下的最长时间:10宽度:7.62 mm
Base Number Matches:1

BA1448S 数据手册

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Audio ICs  
AM radio / FM IF stereo system IC  
BA1448S / BA1449F  
The BA1448S and BA1449F are electronic tuning system ICs for AM, FM IF, and MPX. They have been developed for  
use in radio cassette players and mini-component stereo systems.  
The FM detector and MPX VCO circuits do not require adjustment, which will reduce the number of assembly line pro-  
cesses. In particular, the VCO is laser locked, and requires no adjustment or external components. The characteristics  
of the two chips are the same, but the packages are different (24-pin SDIP for the BA1448S and 24-pin SOP for the  
BA1449F).  
FApplications  
Synthesized tuners in radio cassette players and mini-  
component stereo systems.  
FFeatures  
1) Built-in mono AM radio, FM IF amplifier/detector,  
and FM stereo demodulator.  
6) FM MPX VCO is laser locked and requires no ad-  
justment or external components.  
2) DTS compatible (both SD and IF count).  
3) Built-inreference voltage supply for good short-wave  
band frequency stability.  
7) Built-in forced monaural function for the MPX (VCO  
stops, LED off).  
8) Audio can be low-cut to improve AM fidelity.  
9) VCO for the MPX switches off during AM operation.  
10) Mute possible for IF request.  
4) Good FM stability.  
5) FM detector does not require adjustment (ceramic  
discriminator).  
FAbsolute maximum ratings (Ta = 25_C)  
FRecommended operating conditions (Ta = 25_C)  
354  

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