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| 型号： | SI4840-A10-GU |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 13/26页 |
| 文件大小： | 0K |
| 描述： | IC AM/FM RX FOR DIGITAL RADIOS |
| 标准包装： | 490 |
| 频率： | 504kHz ~ 1.75MHz，64MHz ~ 109MHz |
| 调制或协议： | AM，FM |
| 应用： | 通用 |
| 电流 - 接收： | 21.5mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 电源电压： | 2 V ~ 3.6 V |
| 工作温度： | -15°C ~ 85°C |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 托盘 |
| 其它名称： | 336-2153 |
Si4840/44-A10
4. Functional Description
Si484x
Si4830/34
AMI
ADC
DAC
LOUT
AM
ANT
RFGND
LNA
ADC
DSP
DAC
ROUT
FM
ANT
FMI
AGC
0/90
TUNE1/2
ADC
XTALI
2.0~3.6V VDD1/2
AFC
REG
XTAL
OSC
CONTROL INTERFACE
BAND
Figure 4. Si4840/44-A10 Functional Block Diagram
4.1. Overview
The Si4840/44-A10 is the first analog-tuned digital-
display digital CMOS AM/FM/SW radio receiver IC that
integrates the complete receiver function from antenna
input to audio output. Working with an external MCU
with LCD/LED driver, Si4840/44-A10 can output the
AM/FM/SW frequencies, band, Bass/Treble and
stereo/mono information to display on LCD/LED, while
using a simple potentiometer at the front end for analog-
tune. Leveraging Silicon Laboratories' proven and
patented digital low intermediate frequency (low-IF)
receiver architecture, the Si4840/44 delivers superior
RF performance and interference rejection in AM, FM
and SW bands. Additionally, the digital core provides
advanced audio conditioning for all environments,
removing pops, clicks, and loud static in variable signal
conditions. The superior control algorithm integrated in
Si4840/44-A10 provides easy and reliable control
interface while eliminating all the manual tuned external
components used in traditional solutions.
Like other successful audio products from Silicon Labs,
Si4840/44-A10 offers unmatched integration and PCB
space savings with minimum external components and
small board area on a single side PCB. The high
integration and complete system production test
simplifies design-in, increases system quality, and
improves manufacturability. The receiver has very low
power consumption, runs off two AAA batteries, and
delivers the performance benefits of high performance
digital radio experience with digital display to the legacy
analog-tuned radio market.
The Si4840/44-A10 provides good flexibility in using the
chip. The frequency range of FM/AM/SW bands,
mono/stereo threshold, de-emphasis value, AM tuning
step, AM soft mute level/rate, and Bass/Treble can be
either configured by the MCU or by using external
hardware to make a selection. The reference clock of
the FM tuner can be either provided by the crystal, or by
the host MCU within tolerance.
Si4840/44-A10 also has flexibility in selecting bands
and configuring band properties, enabling masked Host
MCU for multiple projects, and reducing the cost of
development. Four tuning preferences are available to
meet different tuning preference requirements.
Rev.1.0
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| Si4840-A10-GUR | 功能描述:射频接收器 AM/FM/SW RX, 24p SSOP RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| SI4840BDY | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:N-Channel 40-V (D-S) MOSFET |
| SI4840BDY-T1-E3 | 功能描述:MOSFET 40V 19A 6.0W 9.0mohm @ 10V RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
| SI4840BDY-T1-GE3 | 功能描述:MOSFET 40V 19A 6.0W 9.0mohm @ 10V RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
| Si4840-DEMO | 功能描述:射频开发工具 Si4840 Demo and Eval Board RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
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