Datasheet > BCM3431

BCM3431

更新时间： 2024-02-27 02:21:43

品牌	Logo	应用领域
博通 - BOARDCOM		电视
页数	文件大小	规格书
2页	133K
描述
ATSC/NTSC/QAM DIGITAL CABLE READY DTV RECEIVER

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中文翻译

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数据手册

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BCM3431 数据手册

BCM3418

PRODUCT

Brief

BCM3418 CMOS VoIP CABLE TUNER

B C M 3 4 1 8 F E A T U R E S

S U M M A R Y O F B E N E F I T S

Supports 64 - 256 QAM

Input Noise Figure 12 dB

IP3 = 15 dBm (two tone)

SNR 40 dB

CTB, CSO, Xmod all > 50 dB

PLL Step Size 100 KHz

IF AGC 30 dB Range

48-Pin TQFP Package

.5W @ 3.3V

The BCM3418 supports 64- and 256-QAM digital cable

applications

Low cost

Complete TV tuner-on-a-chip – requires no external high

frequency tuned circuits

Simplifies board layout

Single 3.3V supply

Eliminates microphonics

Differential signals for noise immunity

Surface-mount package simplifies manufacturing

Applications

• Cable Modems

• VoIP

•

BCM3418 Tuner Application Example (Cable Modem)

SRAM

BCM3300

54-860 MHz

Diplex

Filter

QAM Rx

Discrete

BCM3418

SAW

QPSK/QAM Tx

MCNS 1.1 MAC

LNA

CMOS Tuner

SDRAM

FLASH

BCM3310

MIPS CPU

PCI I/F

LPF

5-65 MHz

Control

PCI BUS

中文翻译

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