描述 Description

Please note: ACA1240 is being discontinued and is not recommended for new designs. Please note: this product is being discontinued and is not recommended for new designs.

The ACA1240 is a GaAs based amplifier that contains highly linearamplification and attenuation stages for use in CATVCCAP/EQAM/CMTS modulators and networks. It incorporates acontinuously adjustable linear attenuator that is controlled by anexternal analog voltage. This glitch-free attenuator provides aminimum of 20 dB of continuously variable attenuation and ispreceded by a high-linearity pre-amplifier and followed by ahigh-gain output driver. Both input and output are matched to 75 Ωusing balun transformers.

The ACA1240 operates from a single 12 V supply and is offered inan 11 mm x 11 mm surface-mount package.

特性 Features

? 35 dB gain
? Meets DRFI specification +5 dB margin
? High-linearity, high-gain integrated amplifier with an adjustable linear attenuator
? Balanced inputs and outputs matched for a 75 Ω system
? 0 to 20 dB continuously adjustable attenuation using an external analog control signal
? Single 12 V supply with 6 W power consumption
? High-linearity GaAs process