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參數(shù)資料
| 型號： | SI824XCLASSD-KIT |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 4/30頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR SI824X |
| 標準包裝： | 1 |
| 放大器類型： | D 類 |
| 輸出類型： | 2 通道（立體聲） |
| 在某負載時最大輸出功率 x 通道數(shù)量： | 120W x 2 @ 8 歐姆 |
| 板類型： | 完全填充 |
| 已用 IC / 零件： | Si824x |
| 已供物品： | 板 |
| 其它名稱： | 336-2002 |
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Si824x
12
Rev. 1.0
3. Functional Description
The operation of an Si824x channel is analogous to that of an opto coupler and gate driver, 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 Si824x channel is shown in
Figure 6. 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 7 for more details.
Figure 7. Modulation Scheme
RF Oscillator
Modulator
Demodulator
A
B
Semiconductor-
Based Isolation
Barrier
Transmitter
Receiver
Dead
Time
Generator
0.5 to 4 A
peak
Gnd
VDD
Driver
Input Signal
Output Signal
Modulation Signal
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