BCM3420中文资料Low-Power Direct-Conversion Cable Tuner数据手册Broadcom规格书

描述 Description

The BCM3420 is a highly integrated, advanced direct-conversion, single-chip silicon tuner.
 The BCM3420 is specifically designed for use with Broadcom's single-chip cable modem and set-top box devices. With a low BOM cost and a proven reference design, the BCM3420 provides a better alternative to traditional can tuners. Its low-power operation is suited well for applications that require battery backup capability, such as VoIP cable modems. With an RF splitter, the BCM3420 pass-through mode is ideal for use in multituner applications.

特性 Features

·Integrates the global tuning function including selectivity and supports 64-QAM, 256-QAM and 1024-QAM digital cable modem applications. Single-chip direct-conversion silicon tuner completes system design with Broadcom cable modem or set-top box
·DOCSIS®/EuroDOCSIS™ 1.0/1.1/2.0
·Eliminates significant external components such as SAW (Surface Acoustic Wave) IF filters, RSSI measurement components, IF amplifiers and oscillator components
·VCO (Voltage Controlled Oscillator) is fully integrated with no external tank component

应用 Application

·Set-Top Boxes
·Voice over IP (VoIP)