参数资料
型号: SI4020-I1-FT
厂商: Silicon Laboratories Inc
文件页数: 9/32页
文件大小: 1058K
描述: IC TX FSK 915MHZ 5.4V 16-TSSOP
标准包装: 96
频率: 315MHz,433MHz,868MHz,和 915MHz
调制或协议: FSK,OOK
数据传输率 - 最大: 256 kbps
电流 - 传输: 14mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
电源电压: 2.2 V ~ 5.4 V
工作温度: -40°C ~ 85°C
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
包装: 管件
产品目录页面: 585 (CN2011-ZH PDF)
其它名称: 336-1621-5
Si4020
 
 
9
 
 
Note 1:   Using a CR2032 battery (225 mAh capacity), the expected battery life is greater than 2 years using a 60-second wake-up period
for sending 100 byte packets in length at 19.2 kbps with +3 dBm output power in the 915 MHz band.
Note 2:   Using anything but a 10 MHz crystal is allowed but not recommended because all crystal-referred timing and frequency
parameters will change accordingly.
Note 3:   Adjustable in 8 steps.
Note 4:   Optimal antenna admittance/impedance for the Si4020:
 
Yantenna [S]
Zantenna [Ohm]
Lantenna [nH]
315 MHz
9.4E-4 - j4.5E-3
43 + j214
112.00
434 MHz
8.4E-4 - j6.25E-3
21 + j157
59.00
868 MHz
1.15E-3 - j1.2E-2
7.9 + j83
15.30
915 MHz
1.2E-3 - j1.25E-2
7.6 + j79
13.90
 
Note 5:   With selective resonant antennas (see: Application Notes available from http://www.silabs.com/integration).
Note 6:   During this period, no commands are accepted by the chip. For detailed information see the Reset modes section.
Note 7:   The crystal oscillator start-up time strongly depends on the capacitance seen by the oscillator. Using low capacitance and low ESR
crystal is recommended. When designing the PCB layout keep the trace connecting to the crystal short to minimize stray
capacitance.
 
 
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