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参数资料
| 型号： | SI8441 |
| 厂商： | Silicon Laboratories Inc. |
| 英文描述： | QUAD-CHANNEL DIGITAL ISOLATOR |
| 中文描述： | 四通道数字隔离 |
| 文件页数： | 15/24页 |
| 文件大小： | 436K |
| 代理商： | SI8441 |
Si8440/1/2
Rev. 0.3
15
3. Application Information
3.1. Theory of Operation
The operation of an Si8440 channel is analogous to that of an opto coupler, except an RF carrier is modulated
instead of light. This simple architecture provides a robust isolated data path and requires no special
considerations or initialization at start-up. A simplified block diagram for a single Si8440 channel is shown in
Figure 12. A channel consists of an RF transmitter and receiver separated by a transformer.
Referring to the transmitter, input A modulates the carrier provided by an RF oscillator using on/off keying and
applies the resulting waveform to the primary of the transformer. The receiver contains a demodulator that decodes
the input state according to its RF energy content and applies the result to output B via the output driver.
3.2. Eye Diagram
Figure 13 illustrates an eye-diagram taken on an Si8440-IS. The test used an Anritsu (MP1763C) Pulse Pattern
Generator for the data source. The output of the generator's clock and data from an Si8440-IS were captured on an
oscilloscope. The results illustrate that data integrity was maintained even at the high data rate of 150 Mbps. The
results also show that very low pulse width distortion and very little jitter were exhibited.
Figure 12. Simplified Channel Diagram
Figure 13. Eye Diagram
TRANSMITTER
RECEIVER
RF
OSCILLATOR
MODULATOR
DEMODULATOR
A
B
相关PDF资料 |
PDF描述 |
|---|---|
| SI8441-A-IS | QUAD-CHANNEL DIGITAL ISOLATOR |
| SI8441-B-IS | QUAD-CHANNEL DIGITAL ISOLATOR |
| SI8441-C-IS | QUAD-CHANNEL DIGITAL ISOLATOR |
| SI8442 | QUAD-CHANNEL DIGITAL ISOLATOR |
| SI8442-A-IS | QUAD-CHANNEL DIGITAL ISOLATOR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SI8441AA-C-IS1 | 功能描述:隔离器接口集成电路 QuadCh 1.0kV Isolatr 1M 3/1 RoHS:否 制造商:Texas Instruments 通道数量:2 传播延迟时间: 电源电压-最大:5.5 V 电源电压-最小:3 V 电源电流:3.6 mA 功率耗散: 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:SOIC-8 封装:Tube |
| Si8441AA-C-IS1R | 功能描述:隔离器接口集成电路 QuadCh 1.0kV Isolatr 1M 3/1 RoHS:否 制造商:Texas Instruments 通道数量:2 传播延迟时间: 电源电压-最大:5.5 V 电源电压-最小:3 V 电源电流:3.6 mA 功率耗散: 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:SOIC-8 封装:Tube |
| Si8441AA-D-IS1 | 功能描述:隔离器接口集成电路 QuadCh 1.0kV Isolatr 1M 3/1 RoHS:否 制造商:Texas Instruments 通道数量:2 传播延迟时间: 电源电压-最大:5.5 V 电源电压-最小:3 V 电源电流:3.6 mA 功率耗散: 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:SOIC-8 封装:Tube |
| SI8441AA-D-IS1 R | 制造商:Silicon Laboratories Inc 功能描述: |
| SI8441AA-D-IS1R | 功能描述:隔离器接口集成电路 QuadCh 1.0kV Isolatr 1M 3/1 RoHS:否 制造商:Texas Instruments 通道数量:2 传播延迟时间: 电源电压-最大:5.5 V 电源电压-最小:3 V 电源电流:3.6 mA 功率耗散: 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:SOIC-8 封装:Tube |
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