The AD8327 is a low-cost, digitally controlled, variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed to the MCNS-DOCSIS upstream standard. An 8-bit serial word determines the desired output gain over a 48.16 dB range resulting in gain changes of 6.02 dB/major carry. * Supports DOCSIS Standard for Reverse Path Transmission * Gain Programmable in 6.02 dB Steps over a 48.16 dB Range * Low Distortion at 60 dBmV Output –63 dBc SFDR at 21 MHz –57 dBc SFDR at 42 MHz * Output Noise Level –47 dBmV in 160 kHz