参数资料
型号: SI4737-C40-GM
厂商: Silicon Laboratories Inc
文件页数: 18/42页
文件大小: 0K
描述: IC RX AM/FM/WB RDS/RBDS 20UQFN
标准包装: 490
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: 托盘
Si4736/37/38/39-C40
3. Typical Application Schematic (SSOP)
DOUT
R2
GPO3/DCLK
22
20
Optional: Digital Audio Output
R3
C4
DFS
R1
GPO2/INT
GPO1
NC
NC
1
2
3
4
5
6
7
24
23
DBYP
21 VDD
VIO
19
18
LOUT
ROUT
C1
1.85 to 3.6 V
RCLK
SDIO
2.0 to 5.5 V
FMI
8
RFGND 9
17
16
SCLK
SEN
L1
AM antenna
Si4736/37 only
C5
NC
NC
AMI
10
11
12
15
14
13
GND
RST
GPIO3
C2
X1
C3
RCLK
F2
RFGND
AMI
Optional: for crystal oscillator option
T1
C5
Optional: AM air loop antenna
Notes:
1. Place C1 close to V DD and DBYP pins.
2. All grounds connect directly to GND plane on PCB.
3. Pins 6 and 7 are no connects, leave floating.
4. Pins 10 and 11 are unused. Tie these pins to GND.
5. To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Antenna, Schematic,
Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
6. Pin 8 connects to the FM antenna interface, and pin 12 connects to the AM antenna interface.
7. Place Si4736/37/38/39 as close as possible to antenna and keep the FMI and AMI traces as short as possible.
18
Rev. 1.0
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