BCM3416

Features:

* Supports 64 and 256 QAM
* Input frequency range of 50MHz through 860 MHz *
* IF output range of 36MHz through 44 MHz
* High linearity across entire frequency range
* Differential signals for high noise immunity
* Eliminates need for image reject mixer
*Highly integrated and cost-effective
* Minimal BOM with reference designs available
* IF AGC and frequency synthesizers included
* Standard logic CMOS with single 3.3V supply
* 48-pin TQFP
* = For use only in applications where the input frequency to the diplexer is less than 1000MHz.




Application

* Cable modems
* Cable set-top boxes




Description

The BCM3416 is a highly integrated digital tuner for digital voice, video and data communications. Working in conjunction with the BCM3401, BCM3416 contains a low noise amplifier (LNA) and the RF automatic gain control (AGC), The BCM3416 two-chip set supports both 64-QAM and 256-QAM digital cable modem applications.

The BCM3416 and BCM3401 are specifically designed to work with Broadcom's BCM3348, BCM3345, BCM3360 and BCM3250 single-chip cable modems and form an attractive alternative to traditional can tuners in any cable modem design. The BCM3416 features 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 PAL and NTSC standards. This product is for use only in applications where the input frequency to the diplexer is less than 1000 MHz. The BCM3416 is DOCSIS 1.0, 1.1 and 2.0 compliant.