Product Summary

The BCM3348KPB is an advanced digital cable tuner. The applications of it include Cable modems and Cable set-top boxes. The BCM3348KPB contains an LNA and the RF AGC. It is the companion part to the BCM3416. This two-chip solution supports both 64-QAM and 256-QAM digital cable modem applications. The BCM3348KPB supports an IF output frequency range of 36 MHz through 44 MHz and specifically supports the 36.125 MHz and 43.75 MHz center frequencies for the PAL and NTSC standards.

Features

BCM3348KPB features: (1)Supports 64 and 256 QAM; (2)Input frequency range of 50 MHz through 860 MHz; (3)IF output range of 36 MHz through 44 MHz; (4)High linearity across entire frequency range; (5)Differential signals for high noise immunity; (6)Eliminates need for image reject mixer; (7)Highly integrated and cost-effective; (8)Minimal BOM with reference designs available; (9)IF AGC and frequency synthesizers included; (10)Standard logic CMOS with single 3.3V supply ; (11)48-pin TQFP.

Diagrams

BCM3348KPB block diagram

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