AD8324 Datasheet | Analog Devices

Data Sheet Features Supports DOCSIS 2.0 and Euro DOCSIS specifications for reverse path transmission systems Gain programmable in 1 d B steps over a 59 d B range Low distortion at 61 d Bm V output - 59 d Bc SFDR at 21 MHz - 54 d Bc SFDR at 65 MHz Output noise level at minimum gain 1.3 n V/√Hz Maintains 75 Ω output impedance in transmit-enable and transmit-disable condition Upper bandwidth of 100 MHz (full gain range) 3.3 V supply operation Supports SPI® interfaces APPLICATIONS DOCSIS 2.0 and Euro DOCSIS cable modems CATV set-top boxes CATV telephony modems Coaxial and twisted pair line drivers GENERAL DESCRIPTION The AD8324 is a low cost amplifier designed for coaxial line driving. The Features and specifications make the AD8324 ideally suited for DOCSIS® 2.0 and Euro DOCSIS applications. The gain of the AD8324 is digitally controlled. An 8-bit serial word determines the desired output gain over a 59 d B range, resulting in gain changes of 1 d B/LSB. The AD8324 accepts a differential or...