Preliminary RF3321 REVERSE PATH HIGH OUTPUT POWER PROGRAMMABLE GAIN AMPLIFIER 2 Typical Applications • Euro-DOCSIS/DOCSIS Cable Modems • CATV Set-Top Boxes • Telephony Over Cable • Home Networks • Automotive/Mobile Multimedia • Coaxial and Twisted Pair Line Driver 3 -A- The RF3321 is a variable gain amplifier for use in CATV reverse path (upstream) applications.
It is designed to be DOCSIS-compliant for use in cable modems.
The gain control covers a 56dB range and is serially programmable via three-wire digital bus for compatibility with standard baseband chipsets.
Amplifier shutdown and transmit disable modes are hardware-controlled.
The device operates over the frequency band of 5MHz ...

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