1-GHZ LOW POWER DIGITAL CABLE SILICON TUNER

The BCM3422 is a highly integrated, advanced direct conversion, single-chip silicon Tuner It integrates the global tuning function including selectivity and supports 64-QAM, 256-QAM, and 1024-QAM digital cable applications. The input signal is first driven to the LNA with wideband AGC and then filtered and fed to the image rejection mixer. The LO signal feeds the second input of the mixer which down-converts the RF signal to a low 4-MHz IF frequency. The IF signal is then filtered (channel selectivity) and shaped to be connected to fit the channel decoder inputs. There is no need for an external SAW Filter Additionally, the Voltage Controlled Oscillator (VCO) is fully integrated with no external tank component. By Broadcom Corp.
BCM3422 's PackagesBCM3422 's pdf datasheet



BCM3422 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
BCM3422 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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