Serial Digital Controlled Variable Gain Line Driver

DESCRIPTION The AD8320 is a digitally controlled variable gain amplifier optimized for coaxial line driving applications. An 8-bit serial word determines the desired output gain over a 36 dB range (256 gain levels). The AD8320 provides linear gain response. The AD8320 is made up of a digital

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高性能、高输出功率线路驱动器，具有36dB数字控制可变增益

AD8320是一款数字控制式可变增益放大器，并针对同轴线路驱动应用进行了优化。所需输出增益由8比特串行字决定，输出增益范围为36 dB(256增益级)。此外还提供线性增益响应。AD8320内置0 dB至–36 dB的数字控制式可变衰减器，衰减器前面接低噪声、固定增益缓冲器，后面接低失真、高功率放大器。该器件具有220 Ω输入阻抗，接受单端输入信号，额定模拟输入电平最高达0.310 V 峰峰值。输出可驱动75 Ω额定负载，如同轴电缆等，不过也可驱动其它负载。在42 MHz、输出电平最高为12 dBm (3.1 V峰峰值)时，失真性能可达–57 dBc，而在输出电平最高为18 dBm (6.2 V • 8比特串行增益控制\n V/V/LSB线性增益响应\n\n• 增益范围：36 dB\n增益精度：±0.20 dB\n\n• 上行带宽：150 MHz\n\n• 单电源供电：5 V至12 V\n\n\n\n• 在上电和关断情况下可保持75 Ω输出阻抗\n\n• 1 dB压缩点：22 dBm (75 Ω)\n\n• 驱动低失真信号至75 Ω负载： \n SFDR： –57 dBc (42 MHz和12 dBm输出)\n SFDR： –46 dBc (42 MHz和18 dBm输出)\n\n• 支持SPI输入控制标准;

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Serial Digital Controlled Variable Gain Line Driver

DESCRIPTION The AD8320 is a digitally controlled variable gain amplifier optimized for coaxial line driving applications. An 8-bit serial word determines the desired output gain over a 36 dB range (256 gain levels). The AD8320 provides linear gain response. The AD8320 is made up of a digital

文件：583.09 Kbytes 页数：20 Pages

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Serial Digital Controlled Variable Gain Line Driver

DESCRIPTION The AD8320 is a digitally controlled variable gain amplifier optimized for coaxial line driving applications. An 8-bit serial word determines the desired output gain over a 36 dB range (256 gain levels). The AD8320 provides linear gain response. The AD8320 is made up of a digital

文件：583.09 Kbytes 页数：20 Pages

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Serial Digital Controlled Variable Gain Line Driver

文件：585.01 Kbytes 页数：20 Pages

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Serial Digital Controlled Variable Gain Line Driver

DESCRIPTION\nThe AD8320 is a digitally controlled variable gain amplifier optimized for coaxial line driving applications. An 8-bit serial word determines the desired output gain over a 36 dB range (256 gain levels). The AD8320 provides linear gain response.\nThe AD8320 is made up of a digitally con   8-Bit Serial Gain Control\n     V/V/LSB Linear Gain Response\n  36 dB Gain Range\n     ±0.20 dB Gain Accuracy\n  Upper Bandwidth: 150 MHz\n  22 dBm 1 dB Compression Point (75 V)\n  Drives Low Distortion Signals into 75 V Load:\n     –57 dBc SFDR at 42 MHz and 12 dBm Out\n     –46 dBc SFDR at 42 MH;

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