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Si4736/37/38/39-C40
B ROADCAST AM/FM R ADIO R ECEIVER
Features
? NOAA weather band support
(162.4–162.55 MHz)
? AM/FM/WB digital tuning
? No manual alignment necessary
?
?
Worldwide FM band support
(64–108 MHz)
Worldwide AM band support
? Programmable reference clock
? Volume control
? Adjustable soft mute control
?
?
?
?
?
?
?
?
?
(520–1710 kHz) (Si4736/37)
1050 Hz alert tone detection
Excellent real-world performance
Freq synthesizer with integrated VCO
Advanced AM/FM seek tuning
Automatic frequency control (AFC)
Automatic gain control (AGC)
Digital FM stereo decoder
Programmable AVC max gain
Programmable de-emphasis
? RDS/RBDS processor (Si4737/39)
? Optional digital audio out (Si4737/39)
? 2-wire and 3-wire control interface
? Integrated LDO regulator
? 2.0 to 5.5 V supply voltage (SSOP)
? 2.7 to 5.5 V supply voltage (QFN)
? Wide range of ferrite loop sticks and
air loop antennas supported
? QFN and SSOP packages
? RoHS compliant
Ordering Information:
See page 32.
Pin Assignments
Si4736/37/38/39 (QFN)
Applications
NC
1
20
19
18
17
16
?
Emergency radios
?
Boom boxes
FMI 2
15 DOUT
?
?
?
Table and portable radios
Stereos
Mini/micro systems
?
?
?
Modules
Clock radios
Mini HiFi
RFGND 3
AMI 4
RST 5
GND
PAD
14 LOUT
13 ROUT
12 GND
Description
6
7
8
9
10
11 VDD
The Si4736/37/38/39 is the first digital CMOS AM/FM radio receiver IC that
integrates the complete tuner function from antenna input to audio output.
Si4736/37 (SSOP)
DOUT
1
24
LOUT
Functional Block Diagram
Si473x
DFS
GPO3/DCLK
GPO2/INT
GPO1
2
3
4
5
23
22
21
20
ROUT
DBYP
VDD
VIO
AM
ANT
FM/
WB
AMI
RFGND
LNA
AGC
ADC
RDS
(Si4737/
39)
LOW-IF
DIGITAL
AUDIO
(Si4737/
39)
DAC
DOUT
DFS
GPO/DCLK
ROUT
NC
NC
FMI
RFGND
NC
NC
AMI
6
7
8
9
10
11
12
19
18
17
16
15
14
13
RCLK
SDIO
SCLK
SEN
RST
GND
GND
ANT
FMI
LNA
DSP
AGC
ADC
DAC
LOUT
This product, its features, and/or its
2.7– 5.5 V (QFN)
2.0– 5.5 V (SSOP) VDD
GND
LDO
AFC
CONTROL
INTERFACE
VIO
1.85–3.6 V
architecture is covered by one or more of
the following patents, as well as other
patents, pending and issued, both foreign
and domestic: 7,127,217; 7,272,373;
7,272,375; 7,321,324; 7,355,476;
7,426,376; 7,471,940; 7,339,503;
7,339,504.
Rev. 1.0 12/09
Copyright ? 2009 by Silicon Laboratories
Si4736/37/38/39-C40
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相关代理商/技术参数
Si4738-B20-GM
功能描述:调谐器 Broadcast FM/WB Radio Receiver RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度:
SI4738-B20-GMR
功能描述:IC RX FM/WB RADIO 20UQFN 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
Si4738-C40-GM
功能描述:射频接收器 BC FM/WB Radio Receiver 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
SI4738-C40-GMR
功能描述:射频接收器 Si4738 Broadcast FM/WB Radio Receiver 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
Si4738-C40-GU
功能描述:射频接收器 BC FM/WB Radio Receiver 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
SI4738-C40-GUR
功能描述:射频接收器 Broadcast FM/WB Radio Receiver 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-B20-GM
功能描述:调谐器 FM/WB Radio Receiver w/ RDS/RBDS RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度:
SI4739-B20-GMR
功能描述:IC RX FM/WB RAD RDS/RBDS 20UQFN 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
