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基于SI4740汽车级收音机方案

2018-04-25
类别:汽车电子
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文章创建人 拍明芯城

       相关元器件供应:

       型号:Si4740    品牌:Silicon Labs

  Worldwide FM band support (64–108 MHz)

  Worldwide AM band support(520–1710 kHz)

  LW band support (153–288 kHz) (Si4742/43/44/45 only)

  MW (520–1710 kHz) and SW (2.3–30 MHz) support (Si4742/43/44/45 only)

  NOAA weather band support(162.4–162.55 MHz) (Si4742/43 only)

  FM multipath detection and mitigation

  AM/FM noise blanker(Si4742/43/44/45 only)

  Received signal quality indicators (RSSI, SNR, frequency offset, multi-path interference)

  AM and FM programmable seek tuning

  AM and FM programmable soft mute control

  FM Hi-cut control (Si4742/43/44/45 only)

  Power line noise rejection/AM lo-cut filter

  FM programmable stereo-mono blend

  AM and FM programmable channel bandwidth filters

  Digital FM stereo decoder

  Advanced patented RDS/RBDS processor (Si4741/43/45 only)

  Automatic gain control (AGC)

  Integrated AM and FM low-noise amplifier (LNA)

  Image-rejection mixer

  Frequency synthesizer with integrated voltage controlled oscillator (VCO)

  Low-IF conversion with no external ceramic filters

  3.0 to 3.6 V supply voltage

  Programmable reference clock

  AECQ-100 qualified

  –40 to 85 ºC operation

  Digital audio output (I2S) (Si4741/43/45 only)

  24-pin 4 x 4 mm QFN package

  Pb-free/RoHS compliant

       概述

  世界知名精密混合器件解决方案领导厂商Silicon Labs(芯科实验室有限公司)推出的Si4740是一款基于CMOS工艺的汽车级收音机接收集成电路 (IC)。它采用具有国际专利的数字中低频接收机架构,具有优越的射频性能和干扰抑制功能,其简单的设计,无与伦比的高集成度和可编程功能,成为芯科实验室最具代表性的广播音频产品之一。

  Si4740主要为汽车级收音机接收器提供解决方案,它功能丰富,涵盖了从天线到音频的全部接收功能,支持FM波段(64—108MHz)和AM波段(520—1710kHz),同时它还具有FM多径侦测与立体声/单声道混合缓解、高级立体声/单声道混合、高级软静音等功能。

  Si4740既高度自动化,又在自定义音频和系统性能方面具有高度的灵活性。其编程算法包括软体静音特性、多径侦测与减缓、FM立体声率与阀值计算等。Si4740的数字无线技术性能卓越,在弱信号环境中具有高度灵敏性,在强信号环境中具有出色的选择性和互调免疫性。Si4740有24个引脚,组合布局具有兼容性,采用QFN 封装方式,其封装尺寸为4 mm x 4 mm x 0.85 mm。Si4740专为汽车无线电接收器设计,其主要应用领域有:OEM 车载音频系统、汽车无线模块和售后市场汽车音频系统。

基于SI4740汽车级收音机方案.png

  Si4740产品特性:

  • 全球 FM 波段支持 (64—108 MHz)

  • 全球 AM 波段支持 (520—1710 kHz)

  • AM 和 FM 可编程软静音控制

  • FM 多路径探测和减缓

  • FM可编程立体声/单声道混合

  • 输电线噪音抑制/AM 低通滤波器

  相关元件供应

  型号:SI4740-C10-GMR                               品牌:SILICON LABS

  型号:SI4740-C10-GM                                 品牌:SILICON LABS

  Silicon Labs是由Nav Sooch、Dave Welland和Jeff Scott在1996年于美国德州奥斯汀 (Austin, Texas) 成立,专门开发世界级的混合信号器件。今天,公司已成为营运、销售和设计活动遍及世界各地资本额约5亿美元的上市跨国公司,并且在各种混合信号产品领域居于领先地位。

  Silicon Laboratories (NASDAQ: SLAB), based in Austin, Texas, designs and develops analog-intensive, mixed-signal integrated circuits (ICs) for a broad range of applications. Silicon Laboratories' diverse portfolio of highly-integrated, patented solutions is developed by a world-class engineering team with unsurpassed expertise in mixed-signal technology.

  Founded in 1996 on the principles of constant innovation and solid execution, Silicon Laboratories' strong business fundamentals and proven track record have resulted in sustained growth throughout the company's history. Silicon Laboratories consistently introduces best-in-class products implemented in CMOS that dramatically improve the customer value proposition. These products vastly simplify the customer design process and speed time to market by leveraging cutting edge architectures and CMOS process technology to dramatically decrease the size, power and number of components.

  Silicon Laboratories' diverse portfolio of both application specific and general purpose products serves a broad set of markets and applications. Silicon Laboratories' product portfolio includes high-performance, mixed-signal microcontrollers, digital power controllers, AeroFONE™ Single-Chip Phone, Aero® GSM/GPRS/EDGE transceivers, GSM/GPRS power amplifiers, SiRX™ Satellite Set-Top Box Receivers, FM radio tuners, satellite radio tuners, RF synthesizers, silicon direct access arrangements (DAAs), ISOmodem® embedded modems, ProSLIC® subscriber line interface circuits, DSL analog front end ICs, voice codecs, VCXOs and XOs, SiPHY® transceivers, clock and data recovery ICs and precision clock ICs. Silicon Laboratories' solutions are designed into consumer, industrial, automotive and communications products worldwide including wireless handsets, digital video recorders and central office equipment.

  Silicon Laboratories is a fabless semiconductor company, enabling it to take advantage of widely available process technology that allows for reliable, mass production of the company's products at the world's most prominent semiconductor foundries.

  Silicon Laboratories is an ISO-9001 Certified Manufacturer.



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