參數(shù)資料
型號(hào): SI4020-I1-FT
廠商: Silicon Laboratories Inc
文件頁數(shù): 13/32頁
文件大?。?/td> 1058K
描述: IC TX FSK 915MHZ 5.4V 16-TSSOP
標(biāo)準(zhǔn)包裝: 96
頻率: 315MHz,433MHz,868MHz,和 915MHz
調(diào)制或協(xié)議: FSK,OOK
數(shù)據(jù)傳輸率 - 最大: 256 kbps
電流 - 傳輸: 14mA
數(shù)據(jù)接口: PCB,表面貼裝
天線連接器: PCB,表面貼裝
電源電壓: 2.2 V ~ 5.4 V
工作溫度: -40°C ~ 85°C
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
包裝: 管件
產(chǎn)品目錄頁面: 585 (CN2011-ZH PDF)
其它名稱: 336-1621-5
Si4020
 
 
13
 
Control Commands
 
Control Command
Related Parameters/Functions
1     Configuration Setting Command
Frequency band, microcontroller clock output, crystal load capacitance, frequency
deviation
2     Power Management Command
Crystal oscillator, synthesizer, power amplifier, low battery detector, wake-up timer, clock
output buffer
3     Frequency Setting Command
Carrier frequency
4     Data Rate Command
Bit rate (at EEPROM mode only)
5     Power Setting Command
Nominal output power, OOK mode
6     Low Battery Detector Command
Low battery threshold limit
7     Sleep Command
Length of the clock tail after power down
8     Push-Button Command
Push-button related functions
9     Wake-Up Timer Command
Wake-up time period
10    Data Transmit Command
Data transmission
11    Status Register Command
Transmitter status read
Note: In the following tables the POR column shows the default values of the command registers after power-on.
1. Configuration Setting Command
bit     15     14     13     12     11     10
9
8
7
6
5
4
3
2
1
0
POR
 
1
0
0
b1     b0     d2     d1     d0     x3     x2     x1     x0     ms    m2    m1    m0
8080h
 
b1     b0     Frequency Band [MHz]
0
0
315
0
1
433
1
0
868
1
1
915
 
d2    d1    d0
Clock Output Frequency
[MHz]
0
0
0
1
0
0
1
1.25
0
1
0
1.66
0
1
1
2
1
0
0
2.5
1
0
1
3.33
1
1
0
5
1
1
1
10
 
x3    x2    x1    x0    Crystal Load Capacitance [pF]
0     0     0     0
8.5
0     0     0     1
9.0
0     0     1     0
9.5
0     0     1     1
10.0
&
1     1     1     0
15.5
1     1     1     1
16.0
 
The resulting output frequency can be calculated as:
f
out
 = f
0
  (-1)
SIGN
 * (M + 1) * (30 kHz)
where:
f
0
 is the channel center frequency (see the next command)
M is the three bit binary number <m2 : m0>
SIGN = (ms) XOR (FSK input)
 
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