参数资料
型号: SI8622BD-B-IS
厂商: Silicon Laboratories Inc
文件页数: 22/40页
文件大小: 0K
描述: IC ISOLATOR 2CH 5KV 16-SOIC
标准包装: 46
输入 - 1 侧/2 侧: 1/1
通道数: 2
电源电压: 2.5 V ~ 5.5 V
电压 - 隔离: 5000Vrms
数据速率: 150Mbps
传输延迟: 8ns
输出类型: 逻辑
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC W
包装: 管件
工作温度: -40°C ~ 125°C
其它名称: 336-2069-5
Si8610/20/21/22
2. Functional Description
2.1. Theory of Operation
The operation of an Si861x/2x 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 Si861x/2x channel is shown in
Figure 5.
Transmitter
RF
OSCILLATOR
Semiconductor-
Receiver
A
MODULATOR
Based Isolation
Barrier
DEMODULATOR
B
Figure 5. Simplified Channel Diagram
A channel consists of an RF Transmitter and RF Receiver separated by a semiconductor-based isolation barrier.
Referring to the Transmitter, input A modulates the carrier provided by an RF oscillator using on/off keying. 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. This RF on/off keying scheme is superior to pulse code schemes as it
provides best-in-class noise immunity, low power consumption, and better immunity to magnetic fields. See
Figure 6 for more details.
Input Signal
Modulation Signal
Output Signal
Figure 6. Modulation Scheme
22
Rev. 1.4
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