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BA7745FS PDF预览

BA7745FS

更新时间： 2024-11-30 22:39:23
品牌 Logo 应用领域
罗姆 - ROHM 振荡器消费电路商用集成电路音频放大器视频放大器录像机光电二极管
页数 文件大小 规格书
8页 97K
描述
VCR Hi-Fi audio signal REC / PB amplifier with flying-erase oscillator

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BA7745FS 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-32针数：32
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.08
Is Samacsys：N其他特性：ALSO REQUIRES 10.5 TO 11.5V POWER SUPPLY FOR FE MODE
商用集成电路类型：AUDIO AMPLIFIER增益：83 dB
JESD-30 代码：R-PDSO-G32JESD-609代码：e3/e2
长度：13.6 mm信道数量：2
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：SSOP封装等效代码：SOP32,.3,32
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：5,11 V
认证状态：Not Qualified座面最大高度：2 mm
子类别：Audio/Video Amplifiers最大压摆率：90 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

BA7745FS 数据手册

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Video ICs  
VCR Hi-Fi audio signal REC / PB  
amplifier with flying-erase oscillator  
BA7745FS  
The BA7745FS has the recording and playback amplifiers required for Hi-Fi VCR signal processing, and also con-  
tains a flying-erase oscillator. The recording system uses a constant-current amplifeir with AGC to eliminate the need  
to adjust the recording current, and ensure stable operation as the head wears. The IC also features REC MUTE and  
OVER REC functions .  
The playback system has a high-gain preamplifier, a low-offset head switch, a VCA and an EP-gain amplifier. The  
flying-erase oscillator has low 2nd and 3rd harmonic distortion, and when connected to an external driver large out-  
put current can be obtained.  
A H / L control system eliminates the need for special power supplies for the recording and playback systems. The  
IC has low power consumption, and comes in a compact 32-pin SSOP-P package that requires little area on the  
PCB. It will improve the reliability and performance of your designs while reducing external component requirements.  
Applications  
•
VCRs  
Features  
•
The low-noise playback amplifier has a total gain of  
83dB (Typ.). Designed for VHS-bandoperation with  
low external parts count. It has two built-in circuits for  
Hi-Fi VCR operation.  
7) Built-in recording level AGC eliminates the need to  
adjust recording current.  
8) Built-in low-pass filter limits the input bandwidth of  
the recording amplifier.  
2) The circuit has been designed to suppress head-  
switching noise.  
9) Built-in OVER REC recording current amplifier  
function and REC MUTE function that stops record-  
ing output.  
3) Built-in EP / SP gain switching function that boosts  
the playback gain by 5dB.  
10) Built-in high-frequency oscillator for use with flying  
erase function.  
4) Built-in VCA for easy playback output adjustment.  
5) High-output recording amplifier for audio FM record-  
ing.  
11) Record / playback switching can be done directly  
via the system controller, and consumes litlle  
power.  
6) Constant-current drive provides stable recording  
characteristics when the load (head impedance) is  
fluctuating.  
12) Possible to construct a high-performance audio  
system by pairing this chip with a Hi-Fi-audio signal  
processing IC.  
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BA7745FSE1 ROHM

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 		Audio Amplifier, 1 Channel(s), 1 Func, PDSO32, SSOP-32
BA7745FSE2 ROHM

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 		Audio Amplifier, 1 Channel(s), 1 Func, PDSO32, SSOP-32
BA7745FST1 ROHM

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 		1 CHANNEL, AUDIO AMPLIFIER, PDSO32, SSOP-32
BA7745FS-T1 ROHM

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 		Audio Amplifier, 2 Channel(s), PDSO32, PLASTIC, SSOP-32
BA7745FST2 ROHM

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 		Audio Amplifier, 1 Channel(s), 1 Func, PDSO32, SSOP-32
BA7746 ROHM

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 		VCR Hi-Fi audio signal REC / PB amplifier
BA7746FS ROHM

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 		VCR Hi-Fi audio signal REC / PB amplifier
BA7746FSE1 ROHM

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 		Audio Amplifier, 1 Channel(s), 1 Func, PDSO24, SSOP-24
BA7746FSE2 ROHM

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 		2 CHANNEL, AUDIO AMPLIFIER, PDSO24, SSOP-24
BA7746FS-E2 ROHM

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 		Audio Amplifier, 2 Channel(s), PDSO24, SSOP-24

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