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| 型号： | SI4739-C40-GMR |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 26/42页 |
| 文件大小： | 0K |
| 描述： | IC RX FM/WB RAD RDS/RBDS 20UQFN |
| 标准包装： | 2,500 |
| 频率： | 520kHz ~ 1.71MHz，64MHz ~ 108MHz，162.4MHz ~ 162.55MHz |
| 调制或协议： | AM，FM，WB |
| 应用： | 通用 |
| 电流 - 接收： | 19.9mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 特点： | 配有 RSSI |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -20°C ~ 85°C |
| 封装/外壳： | 20-UFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN（3x3） |
| 包装： | 带卷 (TR) |
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Si4736/37/38/39-C40
5.17. Firmware Upgrades
The Si4736/37/38/39 contains on-chip program RAM to
accommodate minor changes to the firmware. This
allows Silicon Labs to provide future firmware updates
to optimize the characteristics of new radio designs and
those already deployed in the field.
5.18. Reset, Powerup, and Powerdown
Setting the RST pin low will disable analog and digital
circuitry, reset the registers to their default settings, and
disable the bus. Setting the RST pin high will bring the
device out of reset.
A powerdown mode is available to reduce power
consumption when the part is idle. Putting the device in
powerdown mode will disable analog and digital circuitry
while keeping the bus active.
5.19. Programming with Commands
To ease development time and offer maximum
customization, the Si4736/37/38/39 provides a simple
yet powerful software interface to program the receiver.
The device is programmed using commands,
arguments, properties, and responses.
To perform an action, the user writes a command byte
and associated arguments, causing the chip to execute
the given command. Commands control an action such
as powerup the device, shut down the device, or tune to
a station. Arguments are specific to a given command
and are used to modify the command. A partial list of
commands is available in Table 15, “Selected Si473x
Commands,” on page 27.
Properties are a special command argument used to
modify the default chip operation and are generally
configured immediately after powerup. Examples of
properties are de-emphasis level, RSSI seek threshold,
and soft mute attenuation threshold. A partial list of
properties is available in Table 16, “Selected Si473x
Properties,” on page 28.
Responses provide the user information and are
echoed after a command and associated arguments are
issued. All commands provide a 1-byte status update,
indicating interrupt and clear-to-send status information.
For a detailed description of the commands and
properties for the Si4736/37/38/39, see “AN332: Si47xx
Programming Guide.”
26
Rev. 1.0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| Si4739-C40-GU | 功能描述:射频接收器 BC FM/WB Radio Receiver w/RDS/RBDS 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 |
| SI4739-C40-GUR | 功能描述:射频接收器 Broadcast FM/WB Recvr w/RDS/RBDS 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 |
| SI4740 | 制造商:SILABS 制造商全称:SILABS 功能描述:Automotive AM/FM Radio Receiver |
| SI4740-C10-GM | 功能描述:IC TUNER AM/FM CAR RADIO 24QFN RoHS:是 类别:RF/IF 和 RFID >> RF 接收器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 09/Jan/2012 标准包装:50 系列:* 频率:850MHz ~ 2.175GHz 灵敏度:- 数据传输率 - 最大:- 调制或协议:- 应用:* 电流 - 接收:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特点:- 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 85°C 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| SI4740-C10-GMR | 制造商:Silicon Laboratories Inc 功能描述:SI4740-C10-GM AM/FM AUTOMOTIVE RADIO RX - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC TUNER AM/FM CAR RADIO 24QFN |
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