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MAX7452ESA+T 产品描述
视频信号调理器,带有AGC和后肩钳位
MAX7450/MAX7451/MAX7452作为完整的前端视频信号调节器,是为改善标准定义视频信号的质量设计的。这些器件重建视频输入的DC电平、纠正幅度误差达±6dB、检测故障条件、过滤带外噪声。MAX7450/MAX7451/MAX7452对需进一步通过矩阵开关或视频解码器(ADC)进行视频处理的信号质量进行优化。每一款器件都集成了输入视频钳位功能、自动增益控制(AGC)、同步丢失(LOS)检测器和带外噪声/低通滤波器。这些器件还包含可以由用户选择的缓冲器增益(0或+6dB)以及AGC禁止功能。
MAX7450和MAX7451分别采用±5V或±3.3V的双电源供电,重建相对于GND的视频消隐电平。MAX7452工作在+5V的单电源下,具有用户可调的钳位电平。
这些器件都采用8脚SO封装,有一个裸露焊盘,规定工作在扩展的温度范围内(-40°C至+85°C)。
关键特性
- 后沿钳位到GND (MAX7450/MAX7451)
- 可调节的后沿钳位(MAX7452)
- 自动增益控制(±6dB范围)将信号规一化到标准的视频电平上
- 带有LOS输出的输入故障检测
- 60dB固有50Hz/60Hz输入抑制
- 单电源供电:MAX7452 (+5V)
- 带外噪声滤波器
- 输出缓冲器以0dB或+6dB增益驱动标准的150Ω视频负载
- 双电源工作
- MAX7450 (±5V)
- MAX7451 (±3.3V)
- 微小的8引脚SO封装
应用/使用
安全视频监控系统 用于标准定义的信号调理器 视频输入 视频路由与切换系统
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1N4148W订单号:4685768783512012-11-05
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QFBR-5752L订单号:4685768783512012-12-04
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QFBR-5753APZ订单号:10001410920022012-11-28
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QFBR-5755APZ订单号:19491786222012-11-26
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QFBR-5755APZ订单号:19491786222012-11-20
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DS3231SN订单号:5683897759192012-11-13
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DS1832S+TR订单号:LP000120210247572012-11-08
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ACPL-227-50BE订单号:12006680036362012-11-01
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