参数资料
型号: SI4421-A0-FT
厂商: Silicon Laboratories Inc
文件页数: 17/45页
文件大小: 0K
描述: IC TXRX FSK 915MHZ 3.8V 16-TSSOP
标准包装: 96
频率: 433MHz,868MHz,915MHz
数据传输率 - 最大: 256kbps
调制或协议: FSK
应用: ISM
功率 - 输出: 7dbm
灵敏度: -110dBm
电源电压: 2.2 V ~ 3.8 V
电流 - 接收: 15mA
电流 - 传输: 28mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
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: 336-1737-5
Si4421
3. Frequency Setting Command
Bit
15
1
14
0
13
1
12
0
11
f11
10
f10
9
f9
8
f8
7
f7
6
f6
5
f5
4
f4
3
f3
2
f2
1
f1
0
f0
POR
A680h
The 12-bit parameter F (bits f11 to f0 ) should be in the range
of 96 and 3903. When F value sent is out of range, the
The constants C1 and C2 are determined by
the selected band as:
previous value is kept. The synthesizer center frequency f 0
can be calculated as:
f 0 = 10 · C1 · (C2 + F/4000) [MHz]
Band [MHz]
433
868
915
C1
1
2
3
C2
43
43
30
Band
433 MHz
868 MHz
915 MHz
Minimum Frequency
430.2400 MHz
860.4800 MHz
900.7200 MHz
Maximum Frequency
439.7575 MHz
879.5150 MHZ
929.2725 MHz
PLL Frequency Step
2.5 kHz
5.0 kHz
7.5 kHz
4. Data Rate Command
Bit
15
1
14
1
13
0
12
0
11
0
10
1
9
1
8
0
7
cs
6
r6
5
r5
4
r4
3
r3
2
r2
1
r1
0
r0
POR
C623h
The actual bit rate in transmit mode and the expected bit rate of the received data stream in receive mode is determined by the 7-bit
parameter R (bits r6 to r0 ) and bit cs .
BR = 10000 / 29 / (R+1) / (1+ cs · 7) [kbps]
In the receiver set R according to the next function:
R= (10000 / 29 / (1+ cs · 7) / BR) – 1, where BR is the expected bit rate in kbps.
Apart from setting custom values, the standard bit rates from 600 bps to 115.2 kbps can be approximated with small error.
Data rate accuracy requirements:
Clock recovery in slow mode: ? BR/BR < 1/(29 · N bit )
Clock recovery in fast mode: ? BR/BR < 3/(29 · N bit )
BR is the bit rate set in the receiver and ? BR is the bit rate difference between the transmitter and the receiver. N bit is the maximum
number of consecutive ones or zeros in the data stream. It is recommended for long data packets to include enough 1/0 and 0/1
transitions, and to be careful to use the same division ratio in the receiver and in the transmitter.
5. Receiver Control Command
Bit
15
1
14
0
13
0
12
1
11
0
10
p16
9
d1
8
d0
7
i2
6
i1
5
i0
4
g1
3
g0
2
r2
1
r1
0
r0
POR
9080h
Bit 10 (p16) :
Pin 16 function select
p16
0
1
Function of pin 16
Interrupt input
VDI output
17
相关PDF资料
PDF描述
230-50-LPI XFRMR 115/230V 50MA 12VA PCB
SI4421-A1-FT IC TXRX FSK 915MHZ 3.8V 16-TSSOP
30-400-LPI XFRMR PWR 115/230V 30VCT 400MA
56-200-LPI XFRMR PWR 115/230V 56VCT 200MA
ASFL1-33.333MHZ-EC-T OSCILLATOR 33.3330 MHZ 3.3V SMD
相关代理商/技术参数
参数描述
Si4421-A0-FTR 功能描述:射频收发器 Transceiver-EZRadio RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
Si4421-A1-FT 功能描述:射频收发器 TRANSCEIVR EZRadio UNIVRSL ISM BAND FSK RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
SI4421-A1-FTR 功能描述:射频收发器 Transceiver EZRadio RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
SI4421DY 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:P-Channel 20-V (D-S) MOSFET
SI4421DY-T1 功能描述:MOSFET 20V 14A 1.5W RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS(导通):0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube