Upstream CATV Amplifier

文件：398.2 Kbytes 页数：13 Pages

Maxim

美信

CATV上行放大器

MAX3503可编程功率放大器针对CATV上行应用而设计。当额定输入驱动信号为34dBmV时，MAX3503可以输出61dBmV (QPSK)给75Ω负载。输入和输出端口都是差分形式的，输出端口需要外部平衡变换器。可变增益特性提供大于56dB的动态范围，由SPI™ 3线接口控制。增益控制步长为0.5dB。该器件工作于5MHz至65MHz频段。MAX3503在内部针对1:1平衡变换器作了匹配。\n 该器件采用单一3.3V电源，传输过程(100%占空比，61dBmV输出)吸取235mA电流。偏置电流根据输出电平自动调整，以提高效率。另外，维持输出端口匹配的同时，在突发工作间隙该器件可以被禁 \n• 3.3V单电源供电 \n• 精确的增益控制，53dB范围内±1dB精度 \n• 增益可以0.5dB步长调整 \n• 65MHz处谐波失真为-55dBc \n• 突发开/关瞬态极低 \n• 高效率：34dBmV输出时182mW；发送禁止模式16mW;

ADI

亚德诺

Upstream CATV Amplifier

文件：398.2 Kbytes 页数：13 Pages

Maxim

美信

LOW POWER QUAD BIPOLAR OPERATIONAL AMPLIFIERS

DESCRIPTION The MC3403 is a low-cost, quad operational am plifier with true differential inputs. The device has electrical characteristics similar to the popular UA741. However the MC3403, has several distinct advantages over standard operational amplifiers types in single supply applications.

文件：322.77 Kbytes 页数：11 Pages

STMICROELECTRONICS

意法半导体

LOW POWER QUAD BIPOLAR OPERATIONAL AMPLIFIERS

文件：316.78 Kbytes 页数：10 Pages

STMICROELECTRONICS

意法半导体

LOW POWER QUAD BIPOLAR OPERATIONAL AMPLIFIERS

DESCRIPTION The MC3403 is a low-cost, quad operational amplifier with true differential inputs. The device has electrical characteristics similar to the popular UA741. However the MC3403, has several distinct advantages over standard operational amplifiers types in single supply applications. The

文件：317.06 Kbytes 页数：10 Pages

STMICROELECTRONICS

意法半导体