- 您现在的位置：买卖IC网 > PDF目录18758 > SI4421-A0-FT (Silicon Laboratories Inc)IC TXRX FSK 915MHZ 3.8V 16-TSSOP PDF资料下载
参数资料
| 型号： | SI4421-A0-FT |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 15/45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 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页当前第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页
Si4421
Description of the Control Commands
1. Configuration Setting Command
Bit
15
1
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
el
6
ef
5
b1
4
b0
3
x3
2
x2
1
x1
0
x0
POR
8008h
Bit el enables the internal data register.
Bit ef enables the FIFO mode. If ef = 0 then DATA (pin 6) and DCLK (pin 7) are used for data and data clock output.
x3
0
x2
0
x1
0
x0
0
Crystal Load Capacitance [pF]
8.5
b1
0
0
b0
0
1
Freq uenc y Ba nd
Reserved
43 3
0
0
0
0
0
0
0
1
1
1
0
1
9.0
9.5
10.0
1
1
0
1
86 8
91 5
…
1
1
1
1
1
1
0
1
15.5
16.0
2. Power Management Command
Bit
15
1
14
0
13
0
12
0
11
0
10
0
9
1
8
0
7
er
6
ebb
5
et
4
es
3
ex
2
eb
1
ew
0
dc
POR
8208h
Bit
er
ebb
et
es
ex
eb
ew
dc
Function of the control bit
Enables the whole receiver chain
The receiver baseband circuit can be separately switched on
Switches on the PLL, the power amplifier, and starts the
transmission (If TX register is enabled)
Turns on the synthesizer
Turns on the crystal oscillator
Enables the low battery detector
Enables the wake-up timer
Disables the clock output (pin 8)
Related blocks
RF front end, baseband, synthesizer, crystal oscillator
Baseband
Power amplifier, synthesizer, crystal oscillator
Synthesizer
Crystal oscillator
Low battery detector
Wake-up timer
Clock output buffer
The ebb , es , and ex bits are provided to optimize the TX to RX or RX to TX turnaround time.
The RF frontend consist of the LNA (low noise amplifier) and the mixer. The synthesizer block has two main components: the VCO
and the PLL. The baseband section contains the baseband amplifier, low pass filter, limiter and the I/Q demodulator.
To decrease TX/RX turnaround time, it is possible to leave the baseband section powered on. Switching to RX mode means disabling
the PA and enabling the RF frontend. Since the baseband block is already on, the internal startup calibration will not be performed,
the turnaround time will be shorter.
The synthesizer also has an internal startup calibration procedure. If quick RX/TX switching needed it may worth to leave this block
on. Enabling the transmitter using the et bit will turn on the PA, the synthesizer is already up and running. The power amplifier almost
immediately produces TX signal at the output.
The crystal oscillator provides reference signal to the RF synthesizer, the baseband circuits and the digital signal processor part.
When the receiver or the transmitter part frequently used, it is advised to leave the oscillator running because the crystal might need
a few milliseconds to start. This time mainly depends on the crystal parameters.
It is important to note that leaving blocks unnecessary turned on can increase the current consumption thus decreasing the battery
life.
15
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 |
发布紧急采购，3分钟左右您将得到回复。