RF3322

Preliminary RF3322 CABLE REVERSE PATH PROGRAMMABLE GAIN AMPLIFIER 3 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 0.157 0.150 0.0098 0.0040 The RF3322 is a variable gain amplifier for use in CATV reverse path (upstream) applications. It is DOCSIS-compliant for use in cable modems. The gain control covers a 58dB range and is serially programmable via three-wire digital bus for compatibility with standard baseband chipsets. Amplifier shutdown and transmit disable modes are software- and hardware-controlled. The device is placed into sleep mode via the serial control bus. The device operates over the frequency band of 5MHz to 65MHz for use in current U.S. and European systems. The amplifier delivers up to 60dBmV at the output of the balun. Gain is controllable in accurate 1dB steps. The device is provided in an industry-standard QSOP-20 package. Optimum Technology Matching® Applied 0.0098 0.0040 0.340 0.333 0.025 0.244 0.228 0.0688 0.0532 Dimensions in inches. 8° MAX 0° MIN 0.050 0.016 0.010 0.006 NOTES: 1. Shaded lead is Pin 1. 2. All dimensions are excluding mold flash and protrusions. 3. Lead coplanarity: 0 to 0.004 max. 4. Deviation from package center and leadframe center: 0.004 max. 5. Misalignment from top and bottom package centers: 0.004 max. 6. End flash not to exceed 0.006 per side. Package Style: QSOP-20 üSi Bi-CM...